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Discussion Starter · #1 ·
hello just finished building a 360 roller ran good on the dyno
but when i dropped it in the car ive got some puffs of smoke coming out of the breather filters what could this be?
 

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Discussion Starter · #6 ·
how is a leak test performed?
i had the engine professionally built by a reputable builder but i thought maybe one of the rings wasnt seated properly
i will be doing a compression test tonight
also the lifters seem to be ticking at low idle maybe too much oil pressure?
 

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Engine smoke

Most auto engines have a PVC valve mounted in the left valve cover with a vacuum hose from it to the large port on the carburetor. Some run a breather cap on the right side valve cover vented through the air breather base. Some run a breather cap with a filter. Do a search on on this site of crankcase ventilation. Make sure the valve covers have baffles where the breather caps are installed or oil splashes up the bottom on the bottom of the breathers.
 
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