Question did you drain all the petcocks before starting the engine or you don’t have to.
@boatcanvas525
4 жыл бұрын
On this one, the engine has closed cooling, so we don't drain the block. For engines with raw water cooling, yes the block should be drained first.
@Jerryh31
7 жыл бұрын
Do they drain the block/manifolds before introducing the AF?
@SeaFlushInc
7 жыл бұрын
No, because this engine has closed cooling so there is already circulating antifreeze (green or orange) in the block/manifolds. The exhaust elbows are raw water cooled, so they're winterized with the pink antifreeze as it flows through.
@stephengabor6710
4 жыл бұрын
To my question I just asked I do not have a closed cooling system on my 330 1996 sundancer with 7.4 inboards. Does it matter?
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