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-   -   turbo spark plugs (http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/353148-turbo-spark-plugs.html)

fredmeister 06-20-2007 07:29 PM
turbo spark plugs
 
Can anyone comment on these plugs and let me know if it looks normal for a turbo or do I have a problem:
Bosch W3DPO standard high dollar plug for the 79 930:

http://forums.pelicanparts.com/uploa...1182396516.jpg http://forums.pelicanparts.com/uploa...1182396549.jpg http://forums.pelicanparts.com/uploa...1182396588.jpg

Erik Mckenna 06-20-2007 07:59 PM
They look a bit black to me.. but maybe I am seeing more than is really there..

RarlyL8 06-21-2007 05:27 AM
Ouch Fred, that bottom one looks pretty nasty. That plug does not look to be functioning.

David 06-21-2007 05:38 AM
Too cold a plug. Add to that maybe a little oil getting past the valve guides and some blowby on the rings.

I'd go to a 4 heat range plug and check it again. A leakdown test might help pinpoint if there are other problems.

wcc 06-21-2007 06:19 AM
The first two pics looked pretty much like mine. Black and sooted. Which is normal. The last pic looks pretty rough to me too.


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