Oil found on spark plug
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Oil found on spark plug
today I decided to look at my spark plugs cause i installed a new carb. and i was going to read the plugs to tune. All my plugs were good except #3 there was some oil on the threads and it slowly ran out of the whole. any ideas? i havnt noticed and significant oil loss it burns enough to add some by the time for a oil change.
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Was the spark plug dry on the end? Sounds like your valve cover gasket is leaking oil into the spark plug hole. Never seen a spark plug packed with oil and it not fire and burn it off when running. Technically blow by could cause that but there would be other symptoms. Do a compression check on the cylinder dry and with oil and compare pressures.
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Johntom240
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07-13-2015 12:18 AM