Smoke at start up

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  • October 14, 2013 at 11:55 am #234944
    Ron Sparks
    Participant

    @rons

    Just rebuilt my 1600 for my kit car.  It smokesevery now and then on start up.  Have replaced all bearings, piston and jugs, had the heads redone.  Was told the valve seals were bad so I bought a new pair of heads but it still smokes part time on start up .  Anyone got any ideas?

                                                                                    
    October 14, 2013 at 1:40 pm #257984
    Dale Schumacher
    Participant

    @schu

    How many miles since rebuild? Might need to drive a bit and  break the engine in – change oil 500 miles or so on break-in.

    October 14, 2013 at 8:24 pm #257985
    edward ericson
    Participant

    @edsnova

    What schu said. 

    Also, “now and again” means when, exactly? And how well are (is?) the carb(s) adjusted? Floats all right? No fuel in the oil? No oil sloshing into one valve cover and getting by your valve seals on shut-down cuz you park it some times like Dan Akroyd in “The Blues Brothers?“
    October 14, 2013 at 9:41 pm #257986
    greg press
    Participant

    @greg-press

    Have you tried starting it up run it 20 min shut it off 10 min see if it smokes on start up . At one time I owned a 1985 nissan truck . I thought it was burning oil. (smoke looked blue) It turned out to be hot air meeting cold with reflection off the dark colored truck. made it look blue.   

    October 14, 2013 at 10:16 pm #257987
    Ron Sparks
    Participant

    @rons

    Engine has 5000 miles on it ,  use Mobile 1 synthetic oil,  carb set right,  runs like a champ.   park it at Walmart or car show and you can count on it smoking at start.  Have a long time VW mechanic  that built the motor and he can’t figure it out.

    October 15, 2013 at 9:06 am #257988
    newkitman
    Participant

    @newkitman

    RonS. You say that your engine was just rebuilt. Just wondering about engine break-in. Here’s a link to how an air-cooled vw engine should be broke-in. Might shed some light.

     

     

     

    Allen Caron
    VW based 53MGTD - "MoneyPenny"
    "If one thing matters, everything matters" - from the book The Shack

    October 15, 2013 at 10:04 am #257989
    KentT
    Participant

    @kentt

    Just an observation.  Though I am a firm believer in synthetic oil, I do NOT use it in a new engine or newly rebuilt engine until I’ve put a few thousand miles on it.  IMO, it inhibits a proper break-in, such as with crankshaft/camshaft bearings, clearances, piston rings properly seating, etc. 

    Have you re-torqued the heads since it was rebuilt?

    Early FF TDr on 69 VW pan
    Slowly coming back from the ashes...

    October 15, 2013 at 11:12 am #257990
    Ron Sparks
    Participant

    @rons

    Thanks for the help.  Will take your suggestions and see what happens.

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