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oil on spark plug threads?

Discussion in 'General Tech and Maintenance' started by ericL, Dec 23, 2005.

  1. ericL

    ericL Senior Member

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    95 B16A SirII, I changed my spark plugs today and on cylinders 2 and 3 (the middle ones) there was oil covering the spark plug threads. The plugs from 1 and 4 had no oil on them. All the spark plug tips had similar appearance and wear. What would cause this? A warped head? broken head gasket?
     
  2. hosmer

    hosmer I made the millionth post VIP

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    I'd start with the spark plug tube seals
     
  3. driver1

    driver1 Senior Member

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    valve cover gasket set. One of the spark plug tube seals is leaking replace the whole shibang and you should be set
     
  4. smooth_criminal

    smooth_criminal Senior Member

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    agreed replease the tube seals and if there is still oil on them either your rings and or ringlands are shot. Have you done a comp test?
     
  5. B16

    B16 Super Moderator VIP

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    :werd:

    I'm betting its the tube seals as opposed to an issue with your rings. Does the oil appear to be coming from the top of the plug down? Or are your electrodes also covered in oil?
     
  6. smooth_criminal

    smooth_criminal Senior Member

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    here the real question, was there oil on the plug wires? If there was oil on the wire then ti was the tube, If not it's internal.
     
  7. ericL

    ericL Senior Member

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    it was wierd, the oil was only on the threads, not the electrode and not the wires
     
  8. drpenguin

    drpenguin Senior Member

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    sure it was oil and not thread locker?
     
  9. B16

    B16 Super Moderator VIP

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    Thread locker on your spark plugs? [​IMG]
     
  10. hosmer

    hosmer I made the millionth post VIP

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    just on the threads?




    that doesn't sound right...throw some new plugs in and run the engine for 10-15 minutes, then pull them out and see what the hells going on.


    maybe its some m4d t1t3 jDm thing to lube your plugs w/oil (or something) so they come out easier later on...?
     
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