Thread: blow by and swirly port heads.
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05-14-2020 09:23 PM #14
sorry for my ignorance this is my first real ground off restoration and i am learning the more advanced things the expensive way. anyways its a mechanical fuel pump a factory replacement would be my educated guess( it came when i bought the engine) but i believe they put out something in the range of 5-8psi am i right? anyways i have both bowls set at maybe 1/4 or a tiny bit less then 1/4 in the sight glass, ive played with it when i was tuning the engine and it can fill them or keep them low. so correct me if im wrong but i should be in the correct range of pressure?
i am a little bit worried the cylinders where not honed properly for moly rings? what is the correct grit/stone for this i want to ask the builder what he did now i have learned the leak down tester is misleading giving a green "good zone" up to 40%. i am at 20%(seems a bit much as someone else mentioned) on each cylinder i preformed the test cold not sure if it would be better hot?. i could hear what sounded like a balloon filling during the test but could not pin point it at the spots to check i thought that may be a normal sound. should it be silent during the test?





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A belated Happy 78th Birthday Roger Spears
Belated Happy Birthday