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Oil preventing spark

1313 Views 24 Replies 6 Participants Last post by  camden_01_gs
I have oil preventing my spark from firing the engine:mecry:. i checked the valve cover and all the other gaskets and there are no leaks any i dea on how oil is getting in:confused:
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Spark plug tube seals -- just a buck or so each. If that doesn't do it -- it's leaking in around the valve stems and you need the head reworked (it would have to be REALLY bad to let in enough oil to prevent spark).
i checked the tube seal they were fine and it just happened out of no where i was sitting in a parking lot and the engine just shut off there was no smoke or burning oil smell if that helps also
Are you sure it's oil preventing spark?
i checked the tube seal they were fine and it just happened out of no where i was sitting in a parking lot and the engine just shut off there was no smoke or burning oil smell if that helps also
So you have oil on your spark plugs and you have checked all of the seals and none are leaking??
:scratch:

I suggest you clean out the tubes, replace the seals anyway, and see if that helps. If not I'd be pretty sure some serious engine work is in order.
well the oil is all over the spark plugs when i pull them out and every now and then when i try to crank it it will give off a loud pop but not start
well the oil is all over the spark plugs when i pull them out and every now and then when i try to crank it it will give off a loud pop but not start
Is oil on all 4 of your spark plugs? Have you removed the valve cover recently? Is anything wrong with any of the plug tips other than being covered in oil?
How can you look at a tube seal and just know that it is "fine"? I'd recommend just replacing them anyway.
How can you look at a tube seal and just know that it is "fine"? I'd recommend just replacing them anyway.
Agreed 100%. I have had 3 leaking seals. I was only able to see a flaw in one of the three. Just replace all of them at the same time and be done with it. They are only like $2/ea from the dealer.

You will notice the new ones flex a bit. Older/used ones become hard and brittle and can no longer hold a good seal.
ok i will replace all of them but any other ideas on what it could be?
Just like I said -- leaking in around the valve stems.
well thats just an excuse to do head work lol
well thats just an excuse to do head work lol
I may have found a replacement for the stock valve springs, only beefier.....

What would you do? In terms of the head?
probably port and forge some internals different cam and cam gear maybe even DOHC swap i dont know yet
probably port and forge some internals different cam and cam gear maybe even DOHC swap i dont know yet
DOHC swap is a whole different ballgame
true but its just an excuse to replace it
well i took off my valve cover replaced all the gaskets and still there is oil in my cylinder housing so that wasnt the problem.

i dont think it is my head cause the oil is under my spark plugs and the oil is only on the firing end so any ideas :dunno:
Blown head gaskets? Do a compression test.
When you start up your car after it sits all night does it smoke profusely until it runs for a short while?
If so your valve guides are leaking and need to be replaced. It is a pretty entailed process. The old guides need to be machined out and then the new valves needs to be seated.
Local guy out here quoted me $12 per valve for the valve guides and $12 per valve to cut the seats.
If you are considering the DOHC head swap now would be a great time to start, since you should do this anyway to the DOHC head, but like steadly2004 eluded too, it is a new ballgame all together.
my car still wont start i have the valve cover off and im down to the camshaft so far and everything is fine but i still havent found anything that is causing my car to not fire
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