oil deposit on sparkplug
05-31-07, 08:33 AM
#1
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oil deposit on sparkplug
this only happened to one sparkplug when removed
what went wrong here
maybe i tighten the plug too tight and that damaged the gasket ring?
btw- the tip is dry or has no oil deposit
what went wrong here
maybe i tighten the plug too tight and that damaged the gasket ring?
btw- the tip is dry or has no oil deposit
Last edited by tytgs300; 05-31-07 at 08:53 AM.
05-31-07, 12:24 PM
#3
Bingo. The 2JZ engines have a common problem in leaky valve cover gaskets. My bet is that it is plug #6 (all the way in the back). The oil is on the outside of the plug, meaning there is oil in the sparkplug valley. While you're in there, replace the gaskets.
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