what does oil on the bottom part of my spark plug mean?
10-22-2010, 02:05 PM
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what does oil on the bottom part of my spark plug mean?
i went to check my spark plug today cause my car has been bogging and the spark plug in cylinder number1 is all wet others had no oil on it what can be the cause of this ? im thinking its blow by? i did a leak down test and compression test b4 i put my turbo kit on the leakdown most was 14 percent forgot which cylinders and i just remember compression being good...and thanks in advance for the help
10-22-2010, 02:22 PM
#3
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Re: what does oil on the bottom part of my spark plug mean?
bad valvecover gasket and spark plug tube seal. about $20-30 to replace.
may want to change plugs, too, since it was bogging due to a fouled plug.
may want to change plugs, too, since it was bogging due to a fouled plug.
10-22-2010, 02:25 PM
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Re: what does oil on the bottom part of my spark plug mean?
It could mean numerous things, I have a few questions to get a bit more info,
Is there oil on top of the piston?
What is the compression of that cylinder? Since the problem has started
Is your car burning oil? (blue smoke out of the exhaust)
Like said above it could just be bad spark plug hole gaskets.
What motor are we dwaling with?
Is there oil on top of the piston?
What is the compression of that cylinder? Since the problem has started
Is your car burning oil? (blue smoke out of the exhaust)
Like said above it could just be bad spark plug hole gaskets.
What motor are we dwaling with?
10-22-2010, 02:33 PM
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Re: what does oil on the bottom part of my spark plug mean?
It could mean numerous things, I have a few questions to get a bit more info,
Is there oil on top of the piston?
What is the compression of that cylinder? Since the problem has started
Is your car burning oil? (blue smoke out of the exhaust)
Like said above it could just be bad spark plug hole gaskets.
What motor are we dwaling with?
Is there oil on top of the piston?
What is the compression of that cylinder? Since the problem has started
Is your car burning oil? (blue smoke out of the exhaust)
Like said above it could just be bad spark plug hole gaskets.
What motor are we dwaling with?
i have not done a compression check
n its a ls turbo
the plus are like 2 months old they are ngk7 cold plugs
n no smoke
10-22-2010, 02:34 PM
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10-22-2010, 09:45 PM
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10-23-2010, 05:56 AM
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Re: what does oil on the bottom part of my spark plug mean?
if it was on the top of the plug its most likely a valve cover donut gasket. anything under the plug is most likely a HG or rings like delsolo stated. perform a compression test and let us know what your numbers are
10-23-2010, 07:32 AM
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Re: what does oil on the bottom part of my spark plug mean?
i know to do a compression test thanks but i was wondering if i can narrow it down but i guess im going to be doing a compression test thanks but the sorry part is that a compression test is not gonna tell me if its coming from the headgasket or rings or maybe even the valves
10-23-2010, 07:36 AM
#11
Re: what does oil on the bottom part of my spark plug mean?
i know to do a compression test thanks but i was wondering if i can narrow it down but i guess im going to be doing a compression test thanks but the sorry part is that a compression test is not gonna tell me if its coming from the headgasket or rings or maybe even the valves
10-23-2010, 08:59 AM
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Re: what does oil on the bottom part of my spark plug mean?
10-23-2010, 09:12 AM
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Re: what does oil on the bottom part of my spark plug mean?
autozone loan a tools freakn suck i cant get the compression tester out of my head!!!!
10-23-2010, 09:43 AM
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Re: what does oil on the bottom part of my spark plug mean?
ok well if you were getting substantial amounts of oil from a leaking gasket you would most likely feel a cut out, or jerk. so that most likely isnt the case i guess. sorry for you luck man.. but GL on the fix
10-23-2010, 09:50 AM
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Re: what does oil on the bottom part of my spark plug mean?
yeah sucks but im just going to wait till i go back to school on tuesday and see if i can take it in to get another leak down done im thinking it can be my valves cause when i was on the freeway i was stepping on it and i accidently down shift to second it happen twice but my rev limit is only at 7100
11-22-2010, 02:05 AM
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Re: what does oil on the bottom part of my spark plug mean?
I have a similar problem, 1995 Civic Si D16Z6 engine.
Just replaced all 4 plugs and found oil fouling on all of them, shot a torch in the chambers and can clearly see black shinny oil on the faces of the pistons.
Now I'm hoping that as it is affecting all 4 chambers and dont really get much smoke out of the tail pipe then I was thinking either Head Gasket, Valve seals or even crack breather system.
The only time I notice a little bit of smoke is heavy rev at the point where the VTEC kicks in.
Any help greatly appreciated.
Just replaced all 4 plugs and found oil fouling on all of them, shot a torch in the chambers and can clearly see black shinny oil on the faces of the pistons.
Now I'm hoping that as it is affecting all 4 chambers and dont really get much smoke out of the tail pipe then I was thinking either Head Gasket, Valve seals or even crack breather system.
The only time I notice a little bit of smoke is heavy rev at the point where the VTEC kicks in.
Any help greatly appreciated.
04-09-2017, 09:24 AM
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Re: what does oil on the bottom part of my spark plug mean?
Hello I have a 2004 Mini Cooper. I've noticed lately that I'm have a lot of oil on one of my spark plugs below the threads on one of them and the rest just have a lot of gas. Any idea?? I think the rings need replaced but aren't they at the top or am I wrong and they are at the bottom?? Any help will would be amazing
04-11-2017, 09:45 AM
#22
O.G. triple O.G.
Re: what does oil on the bottom part of my spark plug mean?
04-11-2017, 04:08 PM
#23
04-12-2017, 03:02 AM
#24
O.G. triple O.G.
04-13-2017, 09:00 AM
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