I dont even work on cars but I've watched your videos all day while buzzing away at work in my lonely IT job. I even subscribed.. thanks!
@Jafromobile
9 жыл бұрын
Michael Dominguez OH NO! That's how it starts. IT job, learning about auto mechanics in all the downtime that occurs between disasters. You're sitting around like the Maytag repair man because you're competent at what you do and built a stable environment that would never break if not for the users. You get that itch to do something more substantial. Something you can touch and feel... something tangible instead of a bunch of magnetic representations of meaningless 0's an 1's. Must... Fulfill... That... Urge... To... Have... Something... Exciting... And... Real... Next thing you know, you've bought your first AWD turbo something because it offers the greatest challenge and the biggest mashup of mechanical and electronic technologies. The computers are no challenge to you. Now you have to figure out something that's truly rewarding and instantly gratifying. It's probably the challenge you didn't even know you were looking for. That's my story at least. Seems synonymous in the techosphere. I find more guys at the track that work in IT than in any other field. Every contractor, consultant, engineer, analyst I know has one. I'm warning you, if you work in technology, half the gateway drugs are already in your system. ;)
@fckurvtc
10 жыл бұрын
Thanks for another great video Jafro. Your contributions to the automotive society are priceless. Keep up the great work. Hope those ribs are healing quick!
@DatBlueHusky
10 жыл бұрын
only pistons installed such progress much compression very clean
@Jafromobile
10 жыл бұрын
Wow!
@MrComaToes
10 жыл бұрын
I'd dare say this is the most massaged and lovingly crafted rebuild of a thoroughly thrashed Hyundai engine... ever. Pretty cool, and Jafro with a bad ass sound track? Two thumbs up!
@Jafromobile
10 жыл бұрын
RojoDelChocolate is the man!
@tonkatoytruck
10 жыл бұрын
Will have to watch this again in the morning. Kinda late to turn up the RojoChocolate. I was tickled to see you cleaning up the fly cuts on the pistons. Thanks again for your efforts and I look forward to some tuning videos in the near future.
@Jafromobile
10 жыл бұрын
tonkatoytruck You won't regret it. ...in the morning, of course.
@gizzo123us
10 жыл бұрын
Its nice to watch you work no wasted moves I have that same oil can ,
@Jafromobile
10 жыл бұрын
H to tha gizzo! Naah mean?
@bored_of_the_psyop4126
3 жыл бұрын
Building a tecumseh 3hp 2 stroke that had low compression.... then later my firebird that has been parked for 10 years and thanks to your videos im gonna get serious on it and tackle things from home.
@chops383
10 жыл бұрын
I don't even own a DSM/Mitsubishi and I devour these videos. Excellent work as always. Cheers Jafro.
@ViscusDk
10 жыл бұрын
Yet again you amaze me, with your simpel ways to get the job done ! :)
@IanOberhotlzer
10 жыл бұрын
This needs narration! half of the video is your wordy and precise explanation of what we are all watching.
@Thesaltyseafish
9 жыл бұрын
I'd just like to thank you for taking the time to post all this. You've inspired me to work on engines to a standard I've never done before. It's extremely satisfying work and I can't wait to have more equipment so I can take it even further (flow bench and air tools would be a good start!) Also pretty jealous of your torque wrench.. but I don't even want to know how much it costs
@Jafromobile
9 жыл бұрын
Oh, that old thing? You should see my new ones. Ones. Plural. ;)
@Thegoombsen
10 жыл бұрын
man, i'm just trying to get my transmission back in my talon and its so tough. but i watch your videos and it inspires me to keep going. i know it'l go in eventually lol.
@3rdGenGuy
10 жыл бұрын
Stupid question, what would you suggest for cleaning parts before install? Like what's in the can at 7:11
@Jafromobile
10 жыл бұрын
That's called 2+2, or GUM CUTTER, made by Berkebile. That's not an endorsement. I just use it. Read the safety label on all of your products because I probably shouldn't use it. It will knock a hornet dead right out the air, before they hit the ground.
@3rdGenGuy
10 жыл бұрын
***** ok cool, thx. I'm refreshing some SBC heads and my idot father had it tuned a 10:1 air/fuel for years. so the chamber and valves probably look hidious.
@Jafromobile
10 жыл бұрын
Stephen Bagnell This product will work. I prefer the parts washer you saw me use at the beginning of my video for stuff like that, though. It really does work. Check out my DIY parts washer video. I only use 2+2 for pre-assembly now. It's really toxic and it gets very expensive. It will most definitely work for anything caked-on that you've described, though. No question.
@auaq
10 жыл бұрын
As ever, enjoy your videos all the time. What should we be expecting in your next video? Perhaps a topic on Turbo? Or Turbo rebuild? Exhaust and or Intake work?
@jon4915
2 жыл бұрын
I’ve been watching a lot of your videos while doing similar work. Thanks for the uploads! Nice badmotorfinger shirt haha
@NarcisAlin1
5 жыл бұрын
Mate ....what can i say ..i would even pay just so i can stay near you and watch ....probably the best youtuber out there !
@smither109
8 жыл бұрын
Hey jafro, just wanted to let you know that your videos are amazing and informative. just wish I could have found your channel sooner. thank you for the hours upon hours of knowledgeable entertainment.
@engineeringcraic186
9 жыл бұрын
Hi, I'm looking for books on engine building specifically one on engine math, one on airflow ( intake, exhaust, cylinder heads, etc), one on "practical stuff" (balancing rods, choosing piston's, valve clearance etc) and one on ECU tuening.I know nothing about engine building but like math so complex math should be "ok". Thanks I'm learning loads from you guys.
@iconone5
10 жыл бұрын
Thumbs up for the soundgarden shirt.
@zibalas1993
9 жыл бұрын
Hello Jafro, Your channel is realy awesome, one of best channels in KZitem, i learned many things from Your channel, Thank You for this! You say, that smoothing casting lines strenghtens the rod by removing stress risers, but how those casting lines can add stress on rod? Or how stress reduces only by removing that line? :)
@TheFlyingHat
10 жыл бұрын
Feed the Jafro addiction!
@autotalon
10 жыл бұрын
I was kind of worried when I first saw your previous video about the valve reliefs for my build, but I think since I'm running an MLS head gasket and neither the head or block were really machined at all, I should be fine right? They did a "cleanup" pass on the head because it was hit by a piston and they wanted to be 100% sure it was level. Also I have stock cam gears (for a 2.4 dohc anyways) and stock 2g cams.
@WilliamDye-willdye
10 жыл бұрын
I love these occasional "musical interlude" videos. Several times, I've played the crankwalked-teardown video just as background music. Kudos to RojoDelC for once again hitting the $80.00 mark just as the pump handle was released. A quick technical question: does anyone know why a difference of 1.0 grams is a good limit? If 3 grams turns into 100 pounds when spun up, would it be better to balance to .5 grams? .01 grams? I have no idea how much lateral force it takes to be a problem. No doubt the limits depend on the use of the car, but it seems strange that the tolerance came out to exactly 1.0. Finally, a personal note to Jafro: since you're a film maker (and a good one, even if you don't think you are), you might be interested in a channel called "Every Frame A Painting" by Tony Zhou. He analyzes directing and editing techniques in films that have a much, much bigger budget than what you can afford, so I want to make it clear that I am NOT asking for Satoshi Kon spacetime transitions or a fancy lateral tracking shots in your videos. Your work is already too time-consuming! I just figure that since you cared enough to orchestrate the (excellent) hanging-up-a-gasket cut at 3-minutes 54-seconds in the crankwalked-teardown video, then you're probably the type of person who would enjoy at least learning about the film techniques dissected on that channel. I'll try to post links below, though I'm not sure of G+ comments allow them. Every Frame A Painting: kzitem.infovideos Jafro's gasket-hanging cut: CRANKWALKED? 7-bolt teardown 1080HD (EDIT: For some reason, the gasket-hang link doesn't work right when I click on it, but works just fine if I right-click and open it in a new tab. This is in Chrome on a Windows PC. Go figure.)
@davidwallis4567
6 жыл бұрын
Hi jafro, i Love all you videos and you have given me confidence to do all sorts of engine work i would never had tried without your guidance. I am currently rebuilding one of my engines for a mitsubishi Legnum VR4 it has the 6A13tt engine so is a 2.5L V6 twin turbo. the engine has never been rebuilt or balanced at any point apart from at the factory when new. The question i am asking is 4 of the pistons have 2L on the side of the skirt and one has 3L and one has 5L. Is this a reference to the weight of the piston itself, and does this mean the crank is out of balance and the piston weight is being used to balance the entire rotating assembly. so does this mean i should not balance the piston and rod combinations to each other. I have measured the piston and rod combined weights see below (bearings and rings are identical weights so i am ignoring them with respect to these calculations). 4 x 2L (piston and rod) = 881.5g 1 x 3L (Piston and rod) = 883.5g 1 x 5L (Piston and rod) = 883.1g can you shed some light on this. any help would be greatly appreciated. Davezj
@phatcowboy76
8 жыл бұрын
you are grinding the rods over the scale. Aren't you worried about metal dust throwing off readings of subsequent rod piston combinations? Just a thought.
@Jafromobile
8 жыл бұрын
+phatcowboy76 When you turn the scale on, it zeros itself. Whatever is on the scale becomes a part of that zero.
@evilcowboy
9 жыл бұрын
nice job. Grinding casting flash and imperfections can be a tedious job. Especially when it comes to porting and polishing a head to remove the flash and imperfections and match the gaskets. Did you take the crank to get it balanced perfectly and mic'ed and have the journals polished or was this just a build meant to be more of a budget build for a person at home?
@phantom2488
10 жыл бұрын
Can't wait to see what kind of power it puts down :)
@JoeWrenches
10 жыл бұрын
Very nice attention to detail! I like it!
@Jafromobile
10 жыл бұрын
And I wish I could borrow your beard. I'm going to see Clutch tomorrow night and I will feel horribly out of place without one. :) I can't wait to see that garage fill right back up my friend!
@JoeWrenches
10 жыл бұрын
***** Clutch! That's great. Have a good time! I can't wait to get my car back and start putting it together either. So much more fun than disassembling.
@Jafromobile
10 жыл бұрын
Lol... I'm sitting here right now watching your answers video. I failed to ask "What is your quest? What is your favorite color? What is the air speed velocity of an unladen swallow?"
@JoeWrenches
10 жыл бұрын
***** Haha! Wow. It's really a shame that you missed the chance to ask those questions! But, thanks for watching my obscenely long video about me saying the word "Ummm...".
@mikehendrix2202
10 жыл бұрын
I love watching your vids. Im such a gearhead with nothing to wrench on right now, heh.
@Pesar25
7 жыл бұрын
You are a talented person. Great work.
@aserta
7 жыл бұрын
It's funny to think that you could take any random production engine, apply the same treatment minus the extra parts, and get more juice out of it, plus, reliability really. That, all, makes you appreciate old, old, hand built engines even more, even modern hand built ones (say a w16 where every part, bolt, nut, crease, is lovingly massaged to perfection, watching them work is a treat on its own). I mean, you look at a modern engine, then place it side by side with an old one, and throwing aside the difference in components and volume, the modern ones just like pieces of a turd, really, there's no comparison. Any, old, old engine looks like a jewel even in its most undesirable form. Perfectly cut lines, defined and contoured radiuses, even, matched, beautifully crafted. A love affair with metal. Like i said, if i loved old ones before, merely for their aesthetics and stats (in the era context) i love them even more after experiencing what it takes to bring a run of the mill, basic modern one, to get to the base standards of that time. Meh, i'm rambling, what i'm saying is, man you're really killing on this one, as i go through the videos, i'm further and further more impressed. Great stuff.
@madmike5144
8 жыл бұрын
Just awesome video, thanks for sharing it... I could hear you voice almost anywhere in the video
@uniculCSM
8 жыл бұрын
Why didn't you polished the piston top with emery rouge, like I saw in a video of yours where you polished the cylinder head, for preventing carbon build up? Is it ok to polish the piston top too?
@x0druid0x
9 жыл бұрын
nice work, one thing I would like to mention is when balancing rods, weigh both the rod cap and wrist pin bore individually. You can get a better idea where the center of mass is located, grind of a tad bit at either appropriate end, and have a much better balanced engine, reducing vibrations from inertia and extending the life of the engine. Otherwise, great work.
@Jafromobile
9 жыл бұрын
+x0druid0x Yessir. I'll be doing that method in the next build (a build which I care much more about that doesn't use OE parts, and whose pistons aren't pressed on to the rods). In fact, I'll be weighing pistons, ring sets, wrist pins, and even the fasteners separately because sometimes you can swap bits and pieces around and have to grind nothing. ;) I probably won't be so lucky. :\ …which would be a good thing for the sake of the video so that I can cover all the methods. :D
@x0druid0x
9 жыл бұрын
Fair enough, I my personal experience (been building race motors for 10+ yrs professionally, hobby now) the bolts/studs dont make a whole hell lot of difference since you have em on when u balance the rod end anyways. On a side note, I like the amount of detail and prep work you do before you assemble an engine. Its all in the prep work. Keep up the good work. (edit: Meaning grinding the bolt heads down a little, course take the time to get it as close as u can)
@thetwinkiekid4582
10 жыл бұрын
love ur work. keep it up. looking foward to the install.
@malventano
9 жыл бұрын
How can I Rojo's tracks? I'd kill to be able to listen to them while doing my own wrenching!
@mdkaibird
10 жыл бұрын
Hey Jafromobile, appreciate the Hyundai info. I'm messing with a newer Hyundai, a 13 2.0T Sonata. I picked up a 2.0 and 2.4ltr blocks. It's a lot like the 4B11T in many ways. But your video's are packed with useful info for people like me who are wanna-be gear heads ;)
@cacervantes68
4 жыл бұрын
can you use the *small-end rod* weights to balance the piston weights? ( example: +1piston&+0rod and +0piston&+1rod) I have a piston thats like 2g overweight, all my pins and rings are all the same. i took out some material from piston, but i dont want to remove too much. so can i include the small-end rod weights when balancing? or is it better to just grind pistons and rods *Separately* to match smallest weight
@AhmedAlsarraf
10 жыл бұрын
great job my friend
@spineblaZe
10 жыл бұрын
So much work for a Hyundai! Gonna give that thing a paint job when you're done?
@Jafromobile
10 жыл бұрын
but... why? I mean. What's wrong with it? How's it going to help it?
@spineblaZe
10 жыл бұрын
***** Make it black and stealthy >:) Or hot pink and awesome. That thing is going to be so much fun to drive when it's done.
@TheTremayne1
10 жыл бұрын
PLEASE!!! more videos jafro. Love ya. Keep it up.
@fishingsgreat
10 жыл бұрын
I hope you cleaned the pistons separately after you lightened the rods. All that grit from the grinding is really bad for your engine, keep up the good work can't wait to see it running
@Jafromobile
10 жыл бұрын
Is it not in the video? Oh. Yeahp. It's there. Starts at 6:53. ;) Truth be told, I cleaned 'em twice. I did an assembly, got part of it wrong, did it again, threw out 2 hours of video and then had to assemble it all over again. You had me worried I trashed the clean up. lol. I watch this stuff so many times over and over during the edits that it all runs together. Now I know how bands feel when they're on tour.
@Jafromobile
10 жыл бұрын
Oh and you're right. Fishing is great. If it weren't for a fishing trip, I'd still be a smoker. Long story, but a fishing trip lead to me kicking a 25 year habit. Fishing is great!
@usagimoto1423
9 жыл бұрын
I LOVE YOUR VIDEOS BRO, BIG FAN BASED ON THREE VIDEOS
@maldo72
10 жыл бұрын
As always great build video keep them coming
@shlomogoyslop
10 жыл бұрын
I have a few questions for you. I have watched all of your videos and am attempting to do a DOHC swap on a 3rd gen eclipse 2.4 with a kia head aem adjustable gears, evo cams, springs, retainers and valves. can you tell me if goinf from SOHC to DOHC will screw with my ecu or will it be ok? Also, I am assuming you are using a flash and a tatrix cable since in one of the videos is what you used. and last but not least, do you know anyone that does email road tunes? Thanks and keep up the interesting rides and videos
@Jafromobile
10 жыл бұрын
As long as your CAS is sending the right signal that the ECU is looking for, it shouldn't hurt anything. I doubt your fuel tables will be correct for this upgrade, though. You will need some means of adjusting your fuel tables because there's no question that your airflow is going to increase. The tuning solution I use is DSMlink v2, and the cable as well as the ECU are proprietary technology. I'm not sure if any of their ECU modifications work in your case, but their forum is possibly the best troubleshooting resource available to Mitsubishi on the web. You just have to have one of their products to get an account, and they only discuss ECMlink products.
@davidmccleary734
10 жыл бұрын
It's awesome to see this build rolling along! So how long until she's finally running? On a separate note, what color is your GSX? I am about to get my Spyder painted Black Cherry Mica and now I think about it your GSX looks pretty close to that color.
@Jafromobile
10 жыл бұрын
It is pretty close, but it's not a mitsubishi color. It's a Kia color. lol. Just so nobody would copy me. :P It's a rare color seldom ever used on the 1g Amanti, and I bought a bottle of touch-up for the paint job I got and it doesn't match. It's more purple. My car is NOT purple at all, but apparently Kia thinks it should be.
@davidmccleary734
10 жыл бұрын
***** Awesome, I didn't wanna be all up in your kool-aid if you were running the same color, Black Cherry Mica is a Mazda color that I have only ever seen on a 2006 Mazda RX-8 Shinka but apparently they use it on several of their cars, never seen it factory on a mitsu though. Never answered my other question :P When shall we see the Hyundai breathing fire once again? Great work man, very thorough and Jafrotastic as usual!
@Jafromobile
10 жыл бұрын
David McCleary I actually like the Mazda color better than mine. It's more of a candy apple flip to it, and it's consistent. To me it just looks deeper. Mine's moody. Overcast days make it brown, sunny days it's a deep dark red, and in the rain it's off-black. No worries man, nobody's ever seen a Kia Amanti, and if they did, it was probably a different color and they still didn't look. I got the paint chip from a collision shop listed under Kia, 6 months before the first Amanti was sold here, as few of them as there were where I lived, and I've never once seen one this color. I've had this color practically all to myself for the past decade. I like the Mazda Black Cherry Mica better. It has better contrast and its honest. Mines' all shady and moody. I mean... how would you like to wake up to a brown car? Edit: It's called Dark Rose Red.
@Jafromobile
10 жыл бұрын
I still didn't answer your question... so here it is. When it's right. This thing is doing everything it can right now to make me throw it in the trash. I want runs this season and the window's probably going to slam shut right on my fingers.
@NarcisAlin1
5 жыл бұрын
Nice work !!just one question: it isn't better to balance every part (individually) i.e. piston weight balance ,rod weight balance ?
@Jafromobile
5 жыл бұрын
YES! That's why I called it the poor man's balance job. Don't worry, that video is coming fairly soon.
@DENicholsAutoBravado
10 жыл бұрын
I linked an Engineering Explained video to here so they could watch this and read your description. I got excited about rotational inertia and your comment about "3 grams of weight can produce over a hundred pounds of lateral forces at red-line." Rotational Inertia - Effects on Horsepower When you say lateral forces are you referring to the right hand thumb rule? Meaning the perpendicular force from rotational inertia?
@Jafromobile
10 жыл бұрын
Nah, not quite. Really it's all about the balance of the part. 3 grams when the crank sits still translates into more than a hundred pounds of _centrifugal_ force once it's spinning... meaning that it's a very strong bearing-killing vibration at high rotational speeds. The right hand rule if we were to use it on a crankshaft and not talking about magnetism would mean _thrust_ forces, and that's not affected by the balance of the parts.
@DENicholsAutoBravado
10 жыл бұрын
I have that excellently clear now. Thank you.
@fckurvtc
10 жыл бұрын
So if three grams equates to 100 pounds of centrifugal force, does that mean 1 gram off balance will produce 33 pounds of force? If so, that is still quite some force that should be accounted for. Next question is- is that number linear or a constant, not matter what the speed of rotation is? Half of a gram sounds like the ideal number to be shooting for.. 1 gram just puts you in the "acceptable" range.
@DENicholsAutoBravado
10 жыл бұрын
The centripetal force is continuous I would think as such a force is a spinning force. Excepting turning off your engine it'd be continuous. At least that's my thinking. Physicists have replaced the term centrifugal with centripetal. Centrifugal is the attractive, easy idea. It is what you feel is keeping you in your seat on a 360 degrees roller coaster. Centripetal force, the actual force is in the opposite direction. I fought the idea in Physics class until the equations proved it to me. Then I could see the needed term difference.
@DENicholsAutoBravado
10 жыл бұрын
fckurvtc and yes your math is correct.
@rambow70
10 жыл бұрын
God i would love to have you as a teacher, i want to rebuild my 6g72 one day but i feel like picking through forums isn't enough, your videos are great but it still terrifies me to rebuild a short block with new piston rings and rod bearings after seeing you use those dial calipers. I used those in an engineering class in high school and god its easy to screw that up ha.
@Jafromobile
10 жыл бұрын
Get your hands on a quality set of micrometers graduated to one ten thousandth of an inch. Use those to set your dial bore gauge. You won't make a mistake if you have tools with that resolution. I only make entertainment for gearheads to document my journey, but lots of people insist it's educational. :P Edit: This is like "that one time at band camp" for auto mechanics.
@williambritton7958
10 жыл бұрын
Nice, Aerokroil! I juse that stuff at my job all the time :D
@Jafromobile
10 жыл бұрын
You can't beat the Kroil!
@EddieTheGrouch
10 жыл бұрын
***** And you can't beat that smell. Chanel #5 for the shop.
@RampantSGV
10 жыл бұрын
any worry about metal grindings from the rod balancing infecting that beautiful freshly cleaned head next to your grinding station? unless continuity changed during editing. thanks again for these videos, you are truly inspiring!
@Jafromobile
10 жыл бұрын
It's cleaned, sure... but I'm not yet done making that one filthy. That one is yet to see a whole new level of filth that hath never previously been bestowed upon its posterior. Thus saith the Jafro. Alas, the scourge is upon us!
@RampantSGV
10 жыл бұрын
bless the scourge of flow!
@alipontiac
7 жыл бұрын
nice video mate... but why you didn't remove the rods from the pistons and weight them seprately?
@JunkCCCP
5 жыл бұрын
Because the rods and pistons are part of one assembly, so the individual weights of each rod and piston aren't as important as the total weights of each set. Also because Jafro said he was being lazy for this one.
@lorenhusky2717
9 жыл бұрын
Dear Mr. Jafro, I am a fellow DSMTuners member. Recently I bought a shortblock built by someone else. He has given me basic info about it such as it's bored .020 over, has forged JE Pistons, Eagle H Beam rods, stock polished crank, and a balance shaft delete kit from AMS racing or something like that. Also coming with a new OEM oil pan and new oil pump. He says it has only been run for 30 minutes aka it's not even close to being broken in. When I actually receive the engine from freight I was wondering what I should do. In your professional opinion do you think I should disassemble the engine and check the tolerances like you have shown here for the crank and rod bearings to make sure they're in spec? Or since it's already been run should I leave it alone? I'm kind of confused as to which way I go, I even though about sending it to a machine shop and just having them look it over and see if anything concerns them. What would you do? WWJD (What would Jafro do?)
@Jafromobile
9 жыл бұрын
+Loren Husky If I could turn the engine over easily by hand with the plugs out, I'd leave it assembled. If I got bold and pulled the oil pan, I'd just check to make sure the right rods and pistons are in it. It's pretty easy to do just eyeballing it. The bottoms of the pistons will have JE's cast into them and H-beams are easy enough to spot. Maybe I'd check the rod gaps because if they're consistent and correct, the rest of it should also be… Check torque? Sure. Take it apart? Nah. Check timing marks? Yes. Check valve timing? Wouldn't be a bad idea since you can't do that with it installed in the car...
@JerseyTom
8 жыл бұрын
so, coffee filters = dust free wipes? good to know, subbed
@JerseyTom
8 жыл бұрын
Also good to know!
@mostafareda7648
8 жыл бұрын
+
@tiitsaul9036
10 жыл бұрын
yeehaa. New video from Jafro! did you use different post processing this time? time lapse? looks cool.
@SerpantineI
10 жыл бұрын
Sunday Afternoons + Jafro.
@maldo72
10 жыл бұрын
When is your next vid coming out can't wait lol
@olipirard
10 жыл бұрын
What is the make of your hand piece? Foredom, Dremel?
@Jafromobile
10 жыл бұрын
It's a 15 year old Dremel with the old-style flex shaft attachment.
@Wasophangen
9 жыл бұрын
love the engine care
@bigl4201
5 жыл бұрын
Hey Jafro, I have watched all of your videos multiple times. I am in the middle of doing valve stem seals on my evo 9. I am currently removing and bleeding the HLAs. Can I use mineral spirits to clean a bit of sludge from the head while I've got everything open? NOTE: i am doing this with the head still in the car.
@Jafromobile
5 жыл бұрын
It's going to run down into your crankcase. If you have RTV exposed anywhere in your crankcase, it will degrade and come apart, potentially causing leaks, or if there's way too much of it... clogging your oil pickup screen. Mineral spirits is not great for rubber seals, either. You're really better off using it on disassembled parts. If you want to take chances, and trust yourself with being careful, I'd apply it to a rag and work on only the affected areas that you want to clean. Don't allow it to run down into the crankcase. I would also say all these same things about carb cleaner.
@bigl4201
5 жыл бұрын
@@Jafromobile Awesome, brother. Makes sense. Thank you so much for the reply. I was going to go the lint-free rag route if i hadn't heard back from you. Thanks for taking the time to share your knowledge. It really is greatly appreciated.
@DJDevon3
10 жыл бұрын
Pistons are in. What's next?
@Jafromobile
10 жыл бұрын
I'm working on it right now and just came in to change tapes. ;)
@DJDevon3
10 жыл бұрын
No spoilers? Bah! :)
@Jafromobile
10 жыл бұрын
***** Actually, there's a HUGE hint in the description. :D This Hyundai's making nothing easy for me.
@drunkhobo149
9 жыл бұрын
i love these videos they are great way for a kid like me to start to build his dsm. 420a-4g63
@bblauter
10 жыл бұрын
I see you have Kroil and Wd-40 in what situations would you use one over the other? Thanks.
@Jafromobile
10 жыл бұрын
I would not waterproof cast iron parts with AeroKroil. I would use WD40 on parts likely to come in contact with skin. I use AeroKroil to un-seize every moving part on rusty bicycles that sat under someone's porch in the mud for 13 years, throw a set of inner tubes on it and ride like the wind without a squeak. It will do that.
@hadriansmith6400
9 жыл бұрын
I love your video,thanx. There is another person I subscribe to namely fiatnutz . It is a machine shop who does interesting modifications to conrods and combining the knowledge of you two I will realy have a good drag motor. A friend gave me a Nissan 1400 drag motor which has seen the drag strip 3 times and then changed for a bigger motor. Here in Sunny South Africa we drag race Nissan 1400 "bakkies"
@DavidYingst_505
10 жыл бұрын
Hey Jafro! Could you share the details on the flex dremel you use in all of your vids? I am trying to pretty much find that exact one. Most of the stuff I have come across is so much more bulky than yours looks.
@Jafromobile
10 жыл бұрын
You're going to have a REALLY hard time finding it. Mine was purchased in 1997. I think your concern about bulkiness is why I get so many questions about it. The dremel is a model # 395... and the flex shaft... I have no idea? It's the one Dremel sold back in 1997 for the model 395. For 17 years I had a tag on this thing and I cut it off recently because it kept ending up blocking the shot. The model number might have been on there? If you see a tag on it in my videos, try to pause it and look for that number. The camera I'm shooting with should permit you to read the fine print.
@stephenperry7887
10 жыл бұрын
so doing this helps (partially) eliminate the necessity for balance shafts? or am i mistaken
@DENicholsAutoBravado
10 жыл бұрын
Kalimerakis At the moment, this person's comment is on top and maybe your question is answered there. If by the time you look at this they aren't on the top of the comments, copy and paste this into ctrl f :)
@Trials-and-Tribulations
10 жыл бұрын
Have you figured out the brown smoke problem with your galantvr4. Im giving into the darkside, ill be picking a 92 galant vr4 #593 all stock bad trans.
@Trials-and-Tribulations
10 жыл бұрын
Cool, cool. great tip. I'll make of it on a post it. Previous has been trying to his 92 for many years. 1st and 2nd is bad if I dont double clutch it. but still driveable.
@DatDatsun
10 жыл бұрын
Would it be a good idea to polish the piston head or its a waste of time?
@thetwinkiekid4582
10 жыл бұрын
waste of time. u would throw the balance out on every piston and they would need to be rebalanced.
@PHUSII
4 жыл бұрын
great progress
@roccocroce
9 жыл бұрын
Hold that thought, Jafro. Looks like I've found it. Figures, right?
@AverageCitizen333
10 жыл бұрын
Yay new video!
@Topsnap_Podcast
6 жыл бұрын
Keep it coming . I love it..
@CodeMasterRapture
10 жыл бұрын
The anticipation of hearing this beast run is such sweet sweet torture! Do you have any performance goals for this motor (other than running and not blowing up on the first pass)? Any guess on BHP/Torue/Redline?
@Jafromobile
10 жыл бұрын
I said, "I know how easy it's going to be to run 12's" when I first got the car. We're going to see how deep I put it in the 12's. I said "easy", and I think what I meant to say is "cheap". It's been an awful lot of work to get the bugs out, but it's most definitely been cheap. I've got less than a grand in this rebuild plus the drag slicks, and the slicks are $600 of it. It's so totally worth all the effort. It's not going to blow up, I can promise that. >:)
@CodeMasterRapture
10 жыл бұрын
Famous last words :p
@Jafromobile
10 жыл бұрын
Steven D when it happens, it will be spectacular!
@SwPiotrek
10 жыл бұрын
Great video! Thanks!
@DiamondStarWerks
10 жыл бұрын
Any local stores carry that gram scale? it's showing .1 gram increments right?
@DiamondStarWerks
10 жыл бұрын
nevermind i see its only grams.
@Jafromobile
10 жыл бұрын
Jacob DSM Revival Yep this is a 1 gram scale. I have a .1 gram scale for when I do this job right and balance each end, but here I intentionally didn't use it because this is about as close as it needs to be for a junkyard built daily drag car. I mean driver. I bought my .1 gram scale off Amazon.
@DiamondStarWerks
10 жыл бұрын
You mind telling me what brand .1 gr scale you got? And did it come with test weights? Have a 63/64 I slapped together when I was thinking of getting my gst back on the road fast but since driving my spyder now I wanna tear it back down, change some things and balance everything. Also you know where I could get the little stands that support the big/small end of the rods while measuring the opposite end?
@zfreak2808
6 жыл бұрын
You should really take the material off the piece that is heavier, not just the rod. You could be introducing serious vibrations into the engine if the additional weight is in the piston head, not the rod.
@charlesseymour1482
7 жыл бұрын
genius Mr Jagromobile
@ziklude
10 жыл бұрын
what brand is the tool you used to shave down the connecting rods?
@Jafromobile
10 жыл бұрын
It's an old-skool dremel with a flex shaft attachment. I bought it back in 1997. They make them differently now, but they work the same.
@audiefied
10 жыл бұрын
Wont removing the shot peened texture on the connecting rods make them weaker and promote micro cracking and rod failure?
@Jafromobile
10 жыл бұрын
audiefied Not that I use Wikipedia as a source, but it lists in the performance section the details about this. Basically shot peening AND smoothing casting lines are listed in the same sentence. Microcracks are prevented by compacting the surface by shot peening, but I'm not introducing anything rough to promote any sort of cracks. For a sub-450 horse build, I'm not hurting anything with these rods. If you noticed the casting line on these was really wide. Mitsubishi is known for making some really sick rods for the 6-bolt blocks.
@audiefied
10 жыл бұрын
***** Thanks! Good to know, have to remember this for my next rebuild.
@Jafromobile
10 жыл бұрын
audiefied I have seen 640hp on a stock set of 6-bolt rods. Not my car. I wonder what happened to ol' Matt Lennen? If it's the same Matt Lennen over at 1320 motorsports running 9.3's in a Supra, then props to mah main man Matt Lennen! If I'm wrong, and I doubt it, then word 'em up to the real Matt Lennen. The one who made 640hp on stock 6-bolt DSM rods back in the day. The one... along with the other one who will likely find themselves reading this post if they ever Google themselves with "Matt Lennen". Both of whom coincidentally own black Toyota Supras. Go figure? This would be the world's most ridiculous coincidence if there were 2 of them. Word to your moms, Matt Lennens.
@spooln30
10 жыл бұрын
Tune is everything. I still have the stock bottom end on my 2jzgte with big power but these engines are well known to handle big power with ease. Cool build and good videos.
@Jafromobile
10 жыл бұрын
You are correct! I saw 640FWHP on a stock 6-bolt 4g63 with 2g pistons, and it died of flywheel bolt failure... not the rotating assembly. :O I'll be happy with a little over half of that in this car.
@johnechterhoff4791
9 жыл бұрын
Are they forged or cast? Chromoly?
@Jafromobile
9 жыл бұрын
John Echterhoff The rods in the J1's are stout, forged rods with almost inch-wide rod journals and mains. Beefy. Good for 460whp on a stock balanced assembly. I don't know what's in the betas?
@elmisrumbo5626
10 жыл бұрын
hello a question? because ATF did you use on pistons and cylinders?
@Jafromobile
10 жыл бұрын
Yes. Nothing cleans, lubricates and breaks rings in faster than ATF will on first start-up.
@elmisrumbo5626
10 жыл бұрын
Thanks for answering my question
@spooln30
10 жыл бұрын
Nice videos but why not just go with forged pistons and rods for the recent rebuild? Better to over do the internals then rebuild it again and again and again.
@Jafromobile
10 жыл бұрын
Because there's no room left on this block for machining to make 'em fit. This block is already .030" over. Everyone says you're supposed to have forged for boosted performance cars, but that's really all dependent on the tune. So we'll chalk these cast pistons up to science. We'll see what they take before they turn to goo.
@cacervantes68
10 жыл бұрын
why not balance the pistons and rods sepreately?
@Jafromobile
10 жыл бұрын
Full explanation in the description. ;)
@djmv2002
9 жыл бұрын
Great videos nice refresher me to view. Best part plan on getting evo or eclipse in the future so this is a huge help for gives me a 1 up before owning it :).
@alundrasrt
5 жыл бұрын
I thought that side grinding remove rigidity.
@nullanon1259
10 жыл бұрын
Man I'm so impatient to see this thing running. I bet you are even more Jafromobile.
@rodywl
10 жыл бұрын
great job!..
@wolfpuss99
10 жыл бұрын
Jafro, any updates on the Galant?
@Jafromobile
10 жыл бұрын
Not in video form yet... I'm arranging working on it in a new facility. There's 2 cars, a truck, and a boat ahead of me. I went outside and started it yesterday using the Hyundai battery, and it's still leaking power steering fluid everywhere. The delay on the galant footage is based on cost and space. It has very expensive and space-consuming problems. I haven't forgotten about it, in fact, I'd love to be driving it right now.
@reddrw1
7 жыл бұрын
what kind of scale are you using ?
@Jafromobile
7 жыл бұрын
The worst possible kind. One that's only accurate within a whole gram. A cheap sub-20 dollar scale made in China. I have one that weighs within a tenth of a gram that I'll use for a middle-class balancing job.
@reddrw1
7 жыл бұрын
Jafromobile Thanks
@zzcox122
10 жыл бұрын
Happen to have an ETA on the new video?
@Jafromobile
10 жыл бұрын
Exporting just began. It says 7 hours remain. Hopefully up before midnight.
@Kalimerakis
10 жыл бұрын
To me it doesn't make sense to balance the pistons between each other. I read your crankshaft is balanced. But to get the whole assembly balanced you need to balance every piston with its according counterweight on the crankshaft too. One piston can be 5 grams heavier than the next one as long as the counterweight on the crank is too. The only benefit you get of balancing all pistons between each other is less stress on the crankshaft between each piston because of the differences in inertia -but ONLY if you balanced the pistons with their counterweights too.
@Jafromobile
10 жыл бұрын
You're talking about the balancing method for every other crankshaft except for a flat plane crankshaft. I specified "flat-plane crankshaft" in the subtitles at 3:37 and the description. If you take a flat plane crankshaft to a machine shop that attaches bob weights to it for balancing, tell them to stop, get your parts back, and go to any other shop that isn't about to do the job wrong. On inline-4 engines, almost all of the crankshafts ever forged are flat plane cranks. On Chevy LS blocks, it's a flat plane crank. You zero-balance those by ensuring the same amount of weight is on both sides of the centerline and there's no other way to do that right. You toss any consideration for the weight of the piston and rod assemblies right out the window for the crank balance. Bob weights are meant to simulate the rod/piston weight for crankshafts that don't have every pin on the same plane. That's a condition where each piston might weigh a different amount for a reason. If your flat-plane crankshaft is zero balanced, there's no other way to get your assembly balanced correctly without matching the weights of the pistons afterwards. On any engine with a multiple-plane crank, yes, your method is correct.
@Kalimerakis
10 жыл бұрын
***** Thank you for your informative answer! Took me a bit of thinking to get my head around it but it makes perfect sense. The pistons cancel/balance each other out. Thanks!
@Jafromobile
10 жыл бұрын
Kalimerakis Don't worry. I grew up in the Ford V8 realm myself. I thought the same exact thing and the poople who corrected me were a-holes about it. That's why they're poople. ;) Sometimes all it takes is seeing the facts and having time to process them. Prior to then, I hadn't ever even heard the term "flat plane crank".
@Kalimerakis
10 жыл бұрын
***** As a european i grew up between 4-cylinders, but I havent tought about how to balance them until now. I just subscribed. It is not the norm to find people who are not poople (lol) who are so respecful about passing on their knowledge. Keep that up :)
@patw52pb1
9 жыл бұрын
***** Is it not important to separately balance the big end of the rods w/bearings and fasteners and then balance the entire rod, bearing, piston, pin, retainers, rings and fastener assemblies?
@alexanderkelson8043
8 жыл бұрын
hey jafro, I commented on the other video w the shortblock manley turbo tuff rods you had, and brought up balancing. I have manley h beams and pistons and went ahead for some insight from the manley company itself and emailed them about how I should go about removing material. the response I got was "why do you need to remove any piston or rod material? our piston and rods are "set matched" withing 3 grams....." that is what they replied word for word. care to shed any light on that as well? I thought it was withing a gram of each other, as I replied that to the company.
@Jafromobile
8 жыл бұрын
+roxas kelson I need to get the actual numbers, but 3 grams at 5000 RPMs is a whole hell of a lot more weight. My take on it is, my crankshaft is flawlessly zero-balanced. Why would I want to offset that with 3 grams of weight? 3 grams is considered good, but if the rod balance is your weakest link, why wouldn't you fix it? The trick is to try to get everything else to balance out and only remove weight if you have to. If I can get them to balance perfectly, I will… but there's the whole time factor. It takes exponentially more time to correct as you narrow that gap towards 0. That's why most people settle for within 3 grams. It's also unusual for all the rest of the parts of your assembly to weigh identically, so these things should be taken into consideration before removing any material. You can usually get a rotating assembly closer than 3 grams just by moving components around.
@kfjfjfjewlsls
10 жыл бұрын
why is there no commentary?
@Jafromobile
10 жыл бұрын
Mostly because the subject of balancing these rods with this method is so simple, all that's necessary is in the (few) subtitles. It's a lot of work, but most of what I do here I've done in other videos, and the new process (rod balancing using this method) is mindlessly simple. Also, scripting, recording, adding 10 minutes worth of narration is one of the most time consuming parts of my video production. You can bet on complicated topics where math and difficult procedures that I've never demonstrated before will always have narration. Here, aside from the rod balancing, I've covered it already. The details, as always, are in the description. :)
@lapd1989
10 жыл бұрын
Would you port my head please. I have a rb26dett
@elvisvasquez2379
9 жыл бұрын
you are awesome.
@MrStetter
10 жыл бұрын
ATF220 you use?
@Jafromobile
10 жыл бұрын
Yes. It's the best thing to use to clean cylinder bores. It doesn't glaze cylinder walls on first startup like motor oil does when used as a cylinder wall lubricant, and it's slightly less slippery so it helps your rings seat faster. :) b
@MaverickSpawn
8 жыл бұрын
#FiberFix just made me grow gonads. This was the manliest Ad.
@artvandelay5013
10 жыл бұрын
Do you make beats too Jaffer?
@Jafromobile
10 жыл бұрын
The headphones? :P No on the headphones, but yeah, I play around with 'em. The work in this video is by RojoDelChocolate who's got more skills than I'm likely to develop, but yeah I've done a few of my own.
@charleshollow5734
7 жыл бұрын
Are YOU RojoDelChocolate?
@Jafromobile
7 жыл бұрын
Nope! I wish I had his sense of rhythm and his knowledge of how to use Finale.
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