Puff of smoke at startup
07-27-2010, 11:26 AM
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Car: 86 Iroc
Engine: 305 tpi
Transmission: Automatic
Puff of smoke at startup
My 86 Iroc Camaro 305 TPI puts out a puff or cloud of oil smoke when I start it up after it sets for a while. It never smokes any other time or when I accelerate hard. The car only has 75,000 miles on it, and has done it since it had 50,000 on it. I speculate valve seals may be bad or cracked. Any other ideas?
07-27-2010, 05:07 PM
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Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: Puff of smoke at startup
i agree on the valve seals . but , it may just be a sludge build-up in the heads . if the drain holes on the lower front & rear of the cylinder head get sludged up all oil will not fully drain back into crankcase . i have seen this happen many times . a car that has been stored and just started a couple of times a month is a good candidate for this . remove valve covers and check . use a stiff wire to loosen sludge & blow out with compressed air . has worked for me . good luck .
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