 Oil on Spark Plug threads and Tips..., Have pics of problem... |
 Feb 5, 2006 - 6:54 PM
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Enthusiast Joined Feb 5, '06 From Westminster, Ca Currently Offline Reputation: 0 (0%)  |
When i first bought the car 2 years ago and changed the plugs. I noticed that there was some oil on the tip of 2 of the spark plugs. It didn't bother me too much then. A year later i changed the plugs again and there was oil on 2 of the plugs. On the thread and on the ground tips. Just recently I changed the spark plugs again, but this time, the same two plugs were dripping oil. the threads and the ground tip was covered in oil.
can anyone point me into a possible direction as to why this is happening? I originally thought it was the valve cover gasket (spark plug gromets) but wouldn't it leak oil on top of the spark plugs if that was the case? There's oil on the tip of the plugs which suggests to me that oil is leaking into the combustion chambers. I did a compression test awhile ago and the numbers aren't totally off. unfortunitely i dont' have those numbers anymore (lost them). if it helps you find my problem i can do another compression test.      
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Feb 5, 2006 - 8:21 PM
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 Enthusiast  Joined Dec 27, '03 From Nor Cal Currently Offline Reputation: 0 (0%) |
Piston rings or valve seals...
-------------------- "It's ok to be naked girl... I'm an artist!"
1995 AT200 Celica ST: stocked out daily driver... 1984 AE86 Corolla GT-SR5: silvertop 20V 4AGE project car jacked up with goodies... 1991 SW2x MR2 n/a: bare bones hardtop model soon to be... |
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Feb 5, 2006 - 9:47 PM
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Enthusiast Joined Feb 5, '06 From Westminster, Ca Currently Offline Reputation: 0 (0%) |
QUOTE(Kwanza26 @ Feb 5, 2006 - 8:21 PM) [snapback]389340[/snapback] Piston rings or valve seals... wouldn't a bad valve seal and/or piston ring show up on a compression test though? When i ran the test it was pretty much the same through all four cylinder. |
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Feb 6, 2006 - 5:41 PM
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Enthusiast Joined Dec 27, '03 From Nor Cal Currently Offline Reputation: 0 (0%) |
QUOTE(Princess_Sparco @ Feb 6, 2006 - 2:47 AM) [snapback]389383[/snapback] wouldn't a bad valve seal and/or piston ring show up on a compression test though? When i ran the test it was pretty much the same through all four cylinder. Not always. There are other tests you can run to see what is going on... but a compression test is not used to figure out mechanical problems unless of course it's something major. Something smaller, like oil on the plugs usually doesn't affect compression test results... I still say it's blowby caused by bad rings or some slight leaking from the valves. It's easy to figure if it's from a gasket leak on top too... Does your car burn oil? -------------------- "It's ok to be naked girl... I'm an artist!"
1995 AT200 Celica ST: stocked out daily driver... 1984 AE86 Corolla GT-SR5: silvertop 20V 4AGE project car jacked up with goodies... 1991 SW2x MR2 n/a: bare bones hardtop model soon to be... |
Posts in this topic
Princess_Sparco Oil on Spark Plug threads and Tips... Feb 5, 2006 - 6:54 PM
LewFX welcome to the site, another so cal member woot Feb 5, 2006 - 10:09 PM Bigmeanbulldog55 Mine were like this last time I changed my plugs. ... Feb 5, 2006 - 11:24 PM trd94 i would have to say it is your valve seal grommets... Feb 5, 2006 - 11:53 PM
CelicaGirl714 <------ Princess Sparco
QUOTE(trd94 @ Feb... Feb 6, 2006 - 1:28 AM trd94 QUOTE(CelicaGirl714 @ Feb 6, 2006 - 1... Feb 6, 2006 - 10:57 AM bufferdan This is just your valve cover gasket oil ring seal... Feb 6, 2006 - 9:12 AM Bigmeanbulldog55 I just replaced my o-ring seals with my valve cove... Feb 6, 2006 - 10:26 AM bufferdan On my mr2 my valve cover gasket has been changed t... Feb 6, 2006 - 10:39 AM purplegt4 what the book says:
haynes repair manual Feb 6, 2006 - 7:31 PM lagos that looks like a simple valve cover gasket that n... Feb 6, 2006 - 11:49 PM creamed_corn Good old vavle cover gaskets. Mine is starting to ... Feb 7, 2006 - 12:47 AM Insanity-74 I`d agree with the good old rocker cover gasket pr... Feb 7, 2006 - 7:46 AM Princess_Sparco I think the oil leak was the gasket. whoever had t... Feb 8, 2006 - 2:59 PM lagos QUOTE(Princess_Sparco @ Feb 8, 2006 - 2... Feb 8, 2006 - 5:30 PM Originalfuture I have exprerienced this problem with oil around t... Nov 1, 2006 - 8:32 PM Bitter its the valve cover gasket/spark plug tube seal. ... Nov 1, 2006 - 11:44 PM n1ckz0r maybe try tightening your throttle cable. Could be... Nov 2, 2006 - 12:05 AM |
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