Thread: blow by and swirly port heads.

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Originally Posted by dontaskagain

Its not dark blue its light blue and smells like fuel it also uses way to much fuel. carb is set good.

Interesting, but not to funny!
This could be fuel wash. What's your fuel pressure? Does your oil smell of gas?

Originally Posted by 36 sedan

What's your fuel pressure? Does your oil smell of gas?

36 sedan asked a critical question. I don't see that you mentioned what fuel pump you're using but your Edelbrock carb calls for 6.5psig (MAX), and most folks recommend keeping it below 5psig.

Originally Posted by rspears

36 sedan asked a critical question. I don't see that you mentioned what fuel pump you're using but your Edelbrock carb calls for 6.5psig (MAX), and most folks recommend keeping it below 5psig.

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?

if it does end up being rings have not seated properly. what do you guys think about putting in some SAE 30 non detergent and driving the piss out of it for a while? maybe moly rings need extra time to seat, again this is still new under 50 miles on the vehicle. in the past ive just had cast iron rings and never noticed any smoke ever on a new engine they seem to break in pretty much instantly.