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Car smokes on start

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Old Apr 15, 2002 | 09:09 PM
  #1  
91 z28 350's Avatar
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Joined: Dec 2001
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Car: 91 Z28
Engine: 350 TPI
Transmission: 700R4
Car smokes on start

Ok heres the problem when ever my motor is cold and i start my car it smokes. Someone i know who is pretty good with cars told me it was valve stem seals. I was wondering if he was right and if he is how much am i looking at to get it fixed. It makes my car look like its a pos when i start it in the morning
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Old Apr 15, 2002 | 09:33 PM
  #2  
Eric's85TA's Avatar
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From: Nebraska
Car: 1985 Trans Am
Engine: 400
Transmission: 700R4
Axle/Gears: 3.70
Definitely valve guides. Not sure how much to fix them though, sorry.
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Old Apr 15, 2002 | 09:35 PM
  #3  
No4NJunk's Avatar
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Joined: Dec 2001
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From: Greenville S.C.
Car: 87 Grand National
Engine: 3.8 SFI Turbo
Transmission: BRF 200R4
could be valve seals or guides, but most likely seals. What happens is after the car runs and is shut off, oil sits at the top of the heads. When the seals are worn the oil is able to drip down between the seal and valve stem and drip onto the piston. After starting the car the oil is burned off hence the smoke at start up. The cost depends on how you approach the situation. If you do this yourself, not very expensive the seals are about $18 from napa. If you have a machine shop do it ( you bring them the heads) it would probably cost about $50 labor. Not sure how much it would cost for them to do everything.

Last edited by No4NJunk; Apr 15, 2002 at 09:37 PM.
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Old Apr 19, 2002 | 09:35 AM
  #4  
rabidfool's Avatar
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Joined: Jun 2001
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From: albuquerque,nm,usa
mine does the same thing when i start it in the morning. From what i have heard its not that big of a deal, and not to worry about it unless it gets real bad, or unless you dont want you car to do that. dont think any major damage will be done, but again im no pro and just going by what i hear.
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