Spark Plug Help pt. 2 | Ford Explorer Forums

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Spark Plug Help pt. 2

Masterd

Well-Known Member
Joined
October 16, 2005
Messages
806
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6
City, State
Upland, CA
Year, Model & Trim Level
1993 Explorer Sport
Alright so I've got two more pics for you guys to look at before I wrap this up. These pics came after a reconnected the hose on the intake that wasn't connected before. I'm guessing that was causing a vacuum leak. These pics were taken after 14 hours of sitting, and hasn't been started.

DSCF3489.jpg


DSCF3490.jpg


It looks like the oil on plug 5 is definitely seeping downward. By the time I woke up to take this pic, the oil had seeped onto the base of the electrode, but the plug head was still clean, yet I don't see a leak from the valve covers anywhere.
 












No, but I know for a fact its not burning any oil.

Doesn't it look like it would be leaking top down since the head of the plug is fairly clean?

But seriously with 284,000 it could be valve seals, leaking valve covers, rings....or any combo of things.
 






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