help fuel in oil lots
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 42
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Car: 90 Firebid
Engine: 3.1
Transmission: 700r4
Axle/Gears: 10 bolt posi w/4.11s
help fuel in oil lots
anyone got any advice for stopping fuel in crankcase other than adjusting float in carb and putting new better plugs in ?? could it be the heads even tho i got 125 psi compression on all holes ?? if so how do i fix them ??
Senior Member
Joined: Mar 2009
Posts: 429
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From: South Suburbs of Chicago
Car: 89 RS
Engine: 2.8
Transmission: Auto
Re: help fuel in oil lots
Well what type of Carb? My guess is that your fuel pump is bad. They usually have a visible leak when they start to go but I have seen them go bad and pump fuel into the crank case without leaking externally. I had a Holley on a car one time and it was dumping too much fuel so I rejetted it and the car ran better.
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 42
Likes: 0
Car: 90 Firebid
Engine: 3.1
Transmission: 700r4
Axle/Gears: 10 bolt posi w/4.11s
Re: help fuel in oil lots
its a rochester the fuel pump is electric now puttin out 5 psi im still workin on it tonight till i figure it out i have to have it back to the customer tomorrow is there anywhere in the head it could be gettin in like valve seats ?? or is that just oil into the cylinder ?
Supreme Member
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Joined: Jan 2002
Posts: 9,962
Likes: 5
From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: help fuel in oil lots
Rings are really the only place it can get in if you dont have a mech. fuel pump. I would suspect an overly rich carb, excessive blow-by, or a bad ignition.
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