smoke...

  1. #1
    anyone know what can cause smoke after lettin off the throttle ? no smoke on start-up, idle or on throttle. just when you let off and theres a fair bit. any ideas ?
  2. #2
    I would suggest checking your dipstick just make sure it ent white.....if i is Possible head gasket gone. .....or possible just give your idle control valve a clean

    Regards
  3. #3
    Blue smoke? Valve stem oil seals is what my money is on.
  4. #4
    cheers for the reply. has only just had the HG done and the head fully rebuilt. if anything its more an burnt oil smoke
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  5. #5
    LeeumH is right. The smoke colour is diagnostic.

    BLUE = oil
    White = coolant

    Bob
  6. #6
    I'd be very surprised if they didn't renew the valve stem oil seals - they're only a few pence each. Might be worth checking with the garage who did the work.
  7. #7
    works been done myself and its had the stem seals replaced.
  8. #8
    Ah right. You confident the seals didn't get damaged whilst fitting?

    I'd try and find out the colour of the smoke.
  9. #9
    You could try looking at the spark plugs for one that is contaminated with oil - that will help you to prove which valve stem seal may be suspect.
  10. #10
    its deffinatly oil not coolant. comes round the front of the car seem wierd how it only does it after throttle. stem seals would cause smoke on start up becuase it leaks onto the valves but theres nothing.
  11. #11
    On overrun with throttle closed there is quite a vacuum (less pressure than atmoshpehre) in the inlet and that vacuum will be pulling oil down past the valve stem seals.
  12. #12
    if thats what it is, is there a cure for this ?
  13. #13
    when i had my new head casket fitted my my saxo westcoast, for about 2,000 miles i had some smoke but it burns it self of and then its fine fella
  14. #14
    Quote:
    Originally Posted by Gazza_BFC View Post
    when i had my new head casket fitted my my saxo westcoast, for about 2,000 miles i had some smoke but it burns it self of and then its fine fella
    .......
    on*