Oil on top and bottom of spark plugs

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Dec 21, 2003 | 01:36 PM

7rrivera7

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Oil on top and bottom of spark plugs

On top I know I should replace the valve cover seals (spark plugs) but on the bottom? Is it the piston rings?

Dec 21, 2003 | 03:11 PM

RCautoworks

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Re: Oil on top and bottom of spark plugs (7rrivera7)

Usually, but replace the valve cover o rings first. Sometimes oil manages to seep down the spark plug threads and get on the bottom.

Dec 21, 2003 | 03:47 PM

7rrivera7

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Re: Oil on top and bottom of spark plugs (7rrivera7)

ttt

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