Hello, my dear visitors and subscribers ! Here is the final Saito FA 325 R5 D2 radial RC engine run.
Engine was not new, but was in more or less good condition ( it could be better, I think, if avoiding some fuel mixes with castor oil - this is my own opinion).
To explore it's internal design, engine was practically fully dismantled (except
valve timing part). It was cleaned very thoroughly in US bath, with a lot of hand brushing. You can see it's internal parts after cleaning in the first part of this video.
Engine was assembled back after cleaning, adjusted (valves gap),
I also should say. that I was found, that impeller / fuel atomizer / distributor bearings were very "crunchy", with some rocking feeling. Bearings were changed, I do not include this part in this video, avoiding to extend it to infinity. Anyhow, it could be interesting for some RC engine enthusiasts.
Engine was installed on the bench, at -2 Celsius ( for me it was quite cold).
I was happy enough to start engine at cold, but I becomes much more happier, when I found, that impeller bearing replacement gives me an opportunity to achieve lower engine idle. That was the SOUND !
Thank you for watching, and have a nice day !
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