Oil-Fouled Spark Plugs A Symptom of Engine System Problems

There is a rubber seal like an o-ring for each spark plug. These can fail in normal use and need replacing, the cam cover needs to come off for ... Attachments ... Preview image for a collapsed post. ... Probably is bad valve seals, the experts will chime in but you will have to replace the ... If oil persists in the spark plug threads or plug wells over an extended period, it becomes a significant problem. This can lead to several issues. Sounds like the spark plug tube seals are leaking. Not something that's going to cause catastrophic failure, but it may cause misfires if too ... Finding oil fouled spark plugs is tell tail signs of too much oil entering the combustion chamber. More times than not it is caused by piston rings or cylinder ... Oil in the spark plug tubes is caused by shrunken and hardened spark plug tube seals, which can easily be replaced by just pulling the valve covers. Spark plug tube seals are starting to dry up and let oil by. Buying a valve cover gasket set will give you new tube seals along with cover ... For More Info visit us at: http://1aau.to/h/cwW/ Oil on your spark plugs, or ignition coils? Is there an oily puddle in the spark plug tube? The oil might only be getting on the threads while you are removing them, though it might also be possible for oil to sneak past the plug ... deteriorated o-ring. The valve cover includes a seal known as spark plug o-rings. Heat tends to deteriorate the deal over time and allows for ...