wont start and black plugs

Discussion in '16-valve' started by ste dub, Sep 21, 2008.

  1. ste dub Forum Member

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    car ran fine and now its not startin and plugs are comin out black plus 1 plug was covered in oil the turned it over 2 check spark and oil came out of cylinder. is this trouble gonna replace plugs the morra. any help or info would b great[:^(]
     
  2. mattkh Forum Member

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    Hi
    Put your photo on a site and then putthe link in your thread.
    How much oil came out.
    Is the dipstick showing more than the max mark.
     
  3. ste dub Forum Member

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    not much oil couple of little dots but plug was covered. its a 1988 gti 16v all ways 4get 2 put on which car.
    wat site can i put it on.
     
  4. 1982.rpd Forum Member

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    If the oil is getting to the plugs you need to replace the rocker cover gasket
     
  5. StuMc

    StuMc Moderator and Regional Host - Manchester Moderator

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    Was the oil on the electrode end or the end the lead goes onto?

    If it`s the lead end, then rocker gasket, as above.

    If it`s the electrode end, then their are a number of possibilities;

    Worn valve guide, worn stem seal, broken piston ring(s), or worst case blown head gasket (though this would be obvious, especially as the header tank would also have oil in the water).

    To host pics, open a (free) Photobucket account (www.photobucket.com), then paste the link across.

    How to guide

    Rules :thumbup:
     
  6. ste dub Forum Member

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    cheers 4 info on car and sig. put new plugs in and started up. had oil on electrode and on cable gonna get some 1 2 look at it as i'll probs make it worse as thats my kind of luck.
     
  7. StuMc

    StuMc Moderator and Regional Host - Manchester Moderator

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    No probs.

    One more quick tip...you don`t need to add the [​IMG]
     
  8. ste dub Forum Member

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    decided i might have a look at car myself is it a big job chaging the head gasket. i put new plugs in and it started after a couple of trys but as lumpy and loads of black smoke does this sound like it could b the head gasket and is there a how 2 guide.[:s]
     
  9. 1982.rpd Forum Member

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    Try the rocker cover gasket first head gaskets are a big job!, or take it to a garage and ask them to tell you what the problem is and get them to do a compression test to see if its the head gasket.
     
  10. ste dub Forum Member

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    will do take it drivin it wont do it much damage not on road yet but i'll pop down 2 garage if it wont make it worse cheers bud
     
  11. StuMc

    StuMc Moderator and Regional Host - Manchester Moderator

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    The oil was on the electrode end of the plug, suggesting the rocker gasket is fine, and the problem is internal...
     
  12. rubjonny

    rubjonny Administrator Staff Member Admin

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    could have dripped down after the plug was removed though, if the seal is bad you can end up with a very deep puddle of oil round the plug. ask me how I know ;)
     
  13. 1982.rpd Forum Member

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    How do you know Jonny
     
  14. rubjonny

    rubjonny Administrator Staff Member Admin

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    well, I did a rocker gasket on this 16v right, and it had a huge puddle of oil round the spark plug :lol:
     
  15. 1982.rpd Forum Member

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    :lol:
     
  16. StuMc

    StuMc Moderator and Regional Host - Manchester Moderator

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  17. ste dub Forum Member

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    u guys theres no time 4 bickerin. well i'll take it 2 garage 2 get a compression test done then take it from there
     
  18. tamthebam16v Forum Member

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    kr


    what compression should it be???????????????
     
  19. ste dub Forum Member

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    i dont no i'll let them tell me wat it is. hopefully nowt serious
     
  20. StuMc

    StuMc Moderator and Regional Host - Manchester Moderator

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    The actual compression pressure figure can vary quite a lot on different cars.

    What you are looking for specifically is one or more cylinders with a significantly lower pressure than the others.
     

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