Puff of smoke
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Junior Member
Joined: Aug 2014
Posts: 33
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From: Northern NJ
Car: 84 Camaro Z28
Engine: 305HO
Transmission: 5 Spd
Axle/Gears: 373 Gears
Puff of smoke
I have a 305 HO 5.0 V8 which has a whitish/blue smoke coming from the exhaust at start up only after the car has been recently running. This does not happen on a cold start. The smoke does not continue after the initial puff at start up. I am thinking of doing the valve stem seals in hopes that's the issue. Does anyone have any suggestions or comments on what they think it could be? Thanks.
Member
Joined: Aug 2012
Posts: 155
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From: Fort Wayne, Indiana
Car: 1989 Firebird Trans Am
Engine: 355
Transmission: T56
Re: Puff of smoke
Start with those. That's the most likely. Could be worn guides too. Other possibles are rings and coolant leak, but highly unlikely the coolant leak. Good luck.
Member
Joined: Jul 2009
Posts: 155
Likes: 1
Car: 1990 RS Camaro
Engine: 400 sbc throttle body
Transmission: world class t5 manual
Axle/Gears: 3.73's, Detroit TrueTrac
Re: Puff of smoke
Ya either valve stem seals. Or bad piston ring. Either way its going to be quite a bit of work. Not one of thoes easy fixes.
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