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View Full Version : Oil on the plugs !


ta3mo3
06-05-2011, 09:15 PM
my friend got this problem with his marauder

the power is vary weak , stock CV will go faster
when he opened the plugs he find some oil on them !!!


what would be the problem ?
tbone
06-05-2011, 09:20 PM
Loose plugs. Possibly stripped. sh****y mechanic.
ta3mo3
06-05-2011, 09:31 PM
i mean he found the oil on the plugs when he remove them
tbone
06-05-2011, 09:35 PM
........................
tbone
06-05-2011, 09:39 PM
Maybe bad valve cover gasket(s)?
tbone
06-05-2011, 09:44 PM
What do you mean by "oil"? Drippy or black/crusty?
ta3mo3
06-05-2011, 09:51 PM
black oil ...
tbone
06-05-2011, 10:00 PM
Sounds like a bad valve cover gasket, so the oil is leaking down and fouling the COP.

Guessing.....
tbone
06-05-2011, 10:10 PM
The experts will weigh in in about 6 hours......
fastblackmerc
06-06-2011, 03:34 AM
Oil outside of the plugs - bad gasket(s) in the plug wells of the cam covers.

Oil inside the plug - bad valve stem seal(s) or ring(s)
Blackened300a
06-06-2011, 07:32 AM
Oil outside of the plugs - bad gasket(s) in the plug wells of the cam covers.

Oil inside the plug - bad valve stem seal(s) or ring(s)

+1, There are rubber donuts (for lack of a better word) that go on the bottom of the plug wells. If there is oil in the plug well, that means the one for that cyl is leaking.
If you pulled the plug and it has oil and you have no power, I would say the rings are bad and you have low compression.
ta3mo3
06-07-2011, 03:09 AM
+1, There are rubber donuts (for lack of a better word) that go on the bottom of the plug wells. If there is oil in the plug well, that means the one for that cyl is leaking.
If you pulled the plug and it has oil and you have no power, I would say the rings are bad and you have low compression.


i think this is what we have

low compression

do you know the part # for these rings?
fastblackmerc
06-07-2011, 03:21 AM
i think this is what we have

low compression

do you know the part # for these rings?

You do realize that the rings Blackened300a is talking about are piston rings and requires the engine to be taken out and disassembled......

Part numbers will do you no good until you get the engine out and apart to see what you need to do.
burt ragio
06-07-2011, 04:14 AM
Do a compression & leak down test.
03blackmerc
06-07-2011, 04:31 PM
I had this problem on a Ford Taurus sho. It ended up being the valve cover gaskets, but I do a compression test to be sure
4drcbra
06-07-2011, 04:59 PM
Gasket or bad rings