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Author
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Topic: oil on spark plugs mean what?
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phat50
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Member # 1998
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posted
 
 
i pulled my plugs and there is a little oil on the threds not really much on the tip but its there,im thinking thats why my car idles ruff sometimes.do anyone know what this could mean?am i going to have to pull this moter out or what?
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Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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Gear Head
JARED
Member # 779
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posted
It means your rings are bad.
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Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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mike g
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Member # 2919
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posted
was it only on one plug or all of them? because i know if you have like leaky valve covers or something where oil can get over to the plugs from the outside that will happen(just oil on the threads), if there are no oil leaks by them, then chances are it is what sleeper said.
Do a Leak down and compression test on the motor.
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Posts: 289 | Registered: Jun 2003
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biggmatt
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Member # 1124
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posted
sounds like an infamous valve cover leak.
Posts: 392 | From: pittsburg | Registered: Apr 2002
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Bounty Hunter
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Member # 1422
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oil can also get in if the manifold becomes loose, I have had this problem myself.
Posts: 257 | From: All over | Registered: Jun 2002
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phat50
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Member # 1998
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posted
the oil was only on 6 of the plugs and not really on the fireing tip but on the threads and around the ring.what could that mean being only on 6 plugs?could it be something simple or do i have to trash the motor?all four plugs on the pasenger side had oil and two on the driver side had oil.im geting scared plese help? ![[Confused]](confused.gif) ![[Frown]](frown.gif)
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Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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mike g
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Member # 2919
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did you check for oil leaks? have you done or taken it to someone who can do a leak down and compression test on the motor? Check for the oil leaks first since that will be the easiest cause it might just be as easy as changing the valve cover gaskets. If you dont see any oil leaks, take it to a mechanic who can do a leak down and compression test on the motor. The mechanic should beable tell you if anything is wrong with the motor. Good luck.
P.S. its nothing to get scared about. what weight oil are you using right now?
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FOUR EYED PRIDE!!!!!!
Posts: 289 | Registered: Jun 2003
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phat50
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Member # 1998
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posted
oil im useing is 20-50 and i have no valve cover gasket leaks.what would a leak down and a compresion test do?car runs good at wot it just hesitates a little half throttle and idles ruff.thinking because i have oil on the plugs or bad o2 sensors,what do you think?
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Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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TRIXSNK
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Member # 2844
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the tests would show how much pressure can be stored in the chamber w/o it leaking out from the rings so you could definitely rule out bad rings...good luck ![[patriot]](graemlins/patriot.gif)
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Posts: 3740 | From: Bay Area | Registered: May 2003
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Gear Head
JARED
Member # 779
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posted
Phat 50 go have a leakdown test done at your local shop.
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Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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