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White-ish smoke???

Discussion in 'Bay Tech Clinic' started by Ian and Shelley, Jan 30, 2019.

  1. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    121
    Location:
    Umina Beach
    Hi....

    Having got the Kombi back on the road and legal, after a few short test runs we have noticed White ish smoke coming out of the rear drivers side intake vents and around the drivers side rear wheel arch..

    I have rebuilt carbs and confirmed they are not leaking, all vacuum hoses have been secured and no gasses escaping...engine bay cleaned of all old oil and dirt..

    Brakes are not hot and don't appear to be sticking on...
    Clutch is not slipping as far as I am aware...

    I cannot seem to locate where this smoke / gas are coming from..could it be escaping exhaust from the heat exchangers?
    Smoke has a an odd non fuel smell that I cannoth identify.

    Once again any help most welcome...

    We always have a fire extinguisher on hand in case..

    Thanks Ian and Shelley
     
  2. Luckyphil

    Luckyphil Well-Known Member

    Messages:
    5,690
    Location:
    Gosford
    Could it be paint burning off after rebuild. My reco engine did this & freaked me out at first but it did stop after 10 to 15 mins
     
  3. cbus

    cbus Well-Known Member

    Messages:
    11,263
    Location:
    sunshine coast
    What's the smell like.?
    Oil. Suspect leaks on to heater boxes.
    Wiring. Strong acrid plastic smell.
    Paint , as Phil suggested
     
  4. Barry

    Barry Well-Known Member

    Messages:
    3,020
    Location:
    Abbotsford NSW
    When is the smoke present?

    When the motor runs?
    Start up?
    Shut down?
    If when it runs - is it rev dependent?

    Anything coming from exhaust?
     
  5. tintop

    tintop Well-Known Member

    Messages:
    250
    Location:
    Canberra
    as per above, I thought it would be the paint you put on the exhaust....although the wheel well and the top vent should be separated by tinware and seals...did you paint all of the tinware too? that could be smoking out of the top vent and the exhaust paint smoke could be coming out of the wheel well. If it is heat resistant paint it should settle down
    1.jpg 2.jpg
     
  6. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    121
    Location:
    Umina Beach

    No smoke when engine starts and nothing obvious when idling..

    After a 10 min drive when all warmed up smoke can be noticed rear drivers wheel arch area..

    Could be thw heat resistant paint??
     
  7. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    121
    Location:
    Umina Beach

    Strange smell, I cannot pick it...

    .defiantly not fuel, doesn't smell like oil burning and not electrical...

    Its nasty to breath
     
  8. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    121
    Location:
    Umina Beach

    When first driven was very smokey, then second and third trips smoke was a lot less, it seems to be reducing sometimes
     
  9. Barry

    Barry Well-Known Member

    Messages:
    3,020
    Location:
    Abbotsford NSW
    Certainly sounds like paint
     
  10. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    121
    Location:
    Umina Beach
    I Think your right...

    Found this link on YouTube..we don't have as much smoke as on video but very similar whitish smoke

     
  11. cbus

    cbus Well-Known Member

    Messages:
    11,263
    Location:
    sunshine coast
    Agree with Barry.
    Sounds like paint.
    Heat proof needs to be a single coat or 2.very light ones.
    Ordinary paint will come straight off.

    It will settle down then just look ugly :)
    A lighter smell will remain for a while.
     
  12. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    121
    Location:
    Umina Beach
    Thanks again....

    Great forum and fantastic advice
     
  13. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    121
    Location:
    Umina Beach

    Whoops...too much enthustiasm than knowledge....

    I may have not followed the light coat rule...possible too thick paint..will it burn off and smell disappear?

    Is there any risk of paint catching fire?
     
  14. cbus

    cbus Well-Known Member

    Messages:
    11,263
    Location:
    sunshine coast
    Won't catch fire.
    Not re built motor?
    Then its ok to do a couple of drives and get rid of most of it.
    May take an hr?
    maybe a high idle at home first to get the worst over with.
    Once you've given it a first hit you can try and flick off some of the flaking paint with a wire brush or air gun if you like.
    Might help a bit?
     

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