My 3rd cylinder keeps destroying its spark plug and ideas?
I believe the most common thing for that oil in that cylinder, is a cracked valve seal. When that happens the cylinder sucks in oil down the valve stem.
My 3rd cylinder keeps destroying its spark plug and ideas?
Your rings in the engine are probably bad (gone). That repair would require tearing down the engine. Do you get a lot of smoke out the exhaust piipe? You could try an additive to the oil that is supposed to stop the engine from smoking but those don't always work or at least not for long. I speak from personal experience with 2 vehicles. Replace the engine, have it torn down and rebuilt,or replace the car, its only going to get worse.
Bad valve seal and you are fouling the plug with oil..Change the plug every oil change or get a new car...
it may be a burnt valve ( intake or exhaust)
maybe a valve seal
head gasket or piston rings
cracked block or head
You got yourself a dousy.
they used to sell a small cap device that you could put on the end of the spark plug to prevent it from fouling. maybe the cylinder head has a large carbon buildup on it and is hitting the bottom of the spark plug thereby destroying it.
the oil may mean two things to me
bad rings in that cylinder, not unusual
when the spark plug is destroyed it can no longer get rid of the oil by burning it off.
take the plug out
get the cylinder head to the top of the cylinder and see (not easy) if you can look into the spark plug hole using a small good strong flashlight, to see if you can see that buildup i spoke of.
hope that's of some help.
there is a couple of things that can be wrong... the most likely it the valve seal is bad on that cylinder, this is letting oil leak into the combustion chamber and fouling your plug, I would say this is your problem... but it could also be the piston rings worn or maybe one is broken... a mechanic can do a compression test on the cylinder very easily to tell if that is what it is
You're car is leaking oil into the combustion chamber. That engine is gonna need a lot of work. Wires aren't the answer.
it could be a bad valve seal or a stuck oil ring. try flushing the engine out and when you change the oil and filter pour some cd2 in it, and if you have the money, get some hotter plugs
If its covered in oil thats either the rings are worn or the valve stem /stem seals. Have a compression test performed to determine which one.
