what could cause oil to leak into spark plug?

Answer this question

  • what could cause oil to leak into spark plug?


Answer #1 | 19/12 2013 20:15
Overhead cam engines have a gasket seal around each spark plug hole that keeps the oil out of the hole. These seals harden over time with all the heat cycles and can slowly leak oil. Have your rocker cover removed and a new seal installed. Should solve your problem. Good luck.
Positive: 67 %
Answer #2 | 19/12 2013 20:47
If the oil is on the electrode end of the plug (where the gap is) the oil could be coming thru worn valve guides, worn or hardened valve guide seals, or from worn piston rings. It would help if you could give us a better idea of what engine we're talking about here.
Positive: 61 %
Answer #3 | 19/12 2013 21:29
Seals or the gaskets on the valve cover
Positive: 41 %
Answer #4 | 20/12 2013 06:35
if the oil is only getting on the plud threads then you have a valve pan gasket leaking ! if the oil is getting on the firing tips then you have bad oil rings or bad valve seals !
Positive: 9 %

Possible answer

Suppliers and manufacturer of Spark Plugs, ... may allow too much oil to leak into the ... result of different causes but, once a spark plug is ...
Read more
Positive: 67 %
The oil leak appears to only be . ... Oil leaking from spark plug socket. ... If anything leaks into that cylinder ...
Read more
Positive: 62 %
Spark Plug Well Oil Leak Fix, Honda Accord - EricTheCarGuy http ... The interactive transcript could ... How to fix oil leak in spark plug ...
Read more
Positive: 48 %
I'd like to know where are the different places where the engine oil could ... spark plug wires, cause ... oil leak, and replace any spark plugs or ...
Read more
Positive: 25 %

Show more results