YotaTech Forums - spark plug extender

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steve miller

Oct 29, 2015 08:50 AM

spark plug extender

I recently bought a 1985 pick up w/22R. 40k miles. On two of the plugs were installed extenders .Anyone know why these might have been installed.

millball

Oct 29, 2015 09:50 AM

They are ordinarily used to prevent, or delay, oil fouling of spark plugs on worn engines.

Odin	Nov 1, 2015 12:29 AM

Quote:

Originally Posted by millball (Post 52295175)

They are ordinarily used to prevent, or delay, oil fouling of spark plugs on worn engines.

^Exactly.

steve miller
That's never a good sign. You might want to do compression AND leak down tests ASAP to see if there's something up. If both tests are good just install the plugs directly in the head like normal.

thzpcs

Nov 1, 2015 12:45 PM

How does it work without the extenders?

steve miller

Nov 4, 2015 09:42 AM

checked comp. 160-170 on all 4.am trying to do a desmog at the same time and it is still running rough.

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