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 Smoke on overun
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Mad Pierre
Level 10 User

Joined: 18 Jun 2004
Posts: 614

Posted: Mon Jul 26, 2004 4:09 am

As you know my car can pop a flame out. but in doing it ( revving to 6k+ lifting off letting the car slow down so rev are 4k-4.5k) it smoke or flame's, where the oil getting into the engine, piston ring's or Valve seals. ?
JB
Mr Quoter-vator

Joined: 16 Feb 2004
Posts: 7405

Posted: Mon Jul 26, 2004 4:34 am

could be valve seals as at that high rpm rundown u get huge vacumm in the inlet track capable of suckin oil through the seals and down the guides and into the cylinder.
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Mon Jul 26, 2004 4:35 am

oil doesn't cause flames.

Petrol causes flames not oil.

Oil will cause smoke, blue smoke, petrol will cause black smoke.

It will most likely be petrol so theres nothing you can do and its normal.

if its blue smoke then it could be anything, my old chopped up blue hatch was quick when you ragged it then came to a standstaill the car would be surrounded in a blue haze, never any other time.

It can be the rings or the seals of indeed oil getting splashed through the breather pipes.

You will not know for sure until you take it apart.
Mad Pierre
Level 10 User

Joined: 18 Jun 2004
Posts: 614

Posted: Mon Jul 26, 2004 4:55 am

It's blue smoke. same as you tho' only does it when ragging it.
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