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Old 08-25-2012, 07:20 AM
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smoke

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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Old 08-25-2012, 07:27 AM
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smoke'n

don't forget its still a new motor and will need some miles to seat everything... u using a pcv and breather on the other side of engine ??
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Old 08-25-2012, 08:16 AM
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what kind of power did it make?curious,,,

all motors have some blow by.If you ran it on the dyno,shes broken in. are you using a positive valvecover vent?
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Old 08-25-2012, 08:29 AM
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Do a leak down test at TDC to see if there is an issue with ring seal maybe the block was not prepared correctly?
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Old 08-25-2012, 11:34 AM
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smoke

no im have breathers with elements on both sides the smoke/steam is consistant but it also puffed a large cloud of smoke a couple times wile idling
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Old 08-25-2012, 11:38 AM
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smoke

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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Old 08-25-2012, 11:58 AM
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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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Old 08-25-2012, 12:43 PM
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smoke

we hit 550 bhp 510 torque
siamese block jesel rockers w2 heads stroked and boared 30 over
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