TwinTurbo.NET: Nissan 300ZX forum - anyone know the purpose of these?
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Subject anyone know the purpose of these?
     
Posted by scubasteve (rebuilding) on August 17, 2006 at 12:33 PM
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In Reply To Spark Plug Tubes seals posted by FairLady's Man on August 17, 2006 at 12:00 PM
     
Message my guess is, when the valve cover seals leak, oil pools at the bottom where the spark plugs are. these seals prevent the oil from spilling into the spark plug caves. so when you remove the spark plug you wont have lots of dirty oil pour into the cylinders.

--.scubasteve.--


(Rebuild started: April 2004. estimated completion: sigh)

     
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