Anybody know what would cause one spark plug to oil foul?

[DarkoStoj]

have you tried one of them non foulers they make in the help section to see how it does....

I have not and have no experience, but it sounds like a band aid. I have a race in 2 weeks, so depending on the situation I may try it to just get by if I can't pull off a repair.

I was thinking about even popping in a fresh plug everytime I come in off track. I might be able to get by for one stint before it fouls out & starts breaking up.

[twotwoturbo]

I have not and have no experience, but it sounds like a band aid. I have a race in 2 weeks, so depending on the situation I may try it to just get by if I can't pull off a repair.

I was thinking about even popping in a fresh plug everytime I come in off track. I might be able to get by for one stint before it fouls out & starts breaking up.

yea it would be band aid till you figure out what the issue is.... might get you thru the race possible...

[WhiteHawk]

Would running a hotter heat range of plug help? Maybe allow it to last a little longer?

-Geoff

[wickettoby1]

Having an issue on the current engine in the Rolls Royce racecar that has the Viper V10 engine in it.

#10 spark plug is oil fouling. Changed the valve seals and it's still happening. Compression test is fine. Only thing I can think of is a cracked piston or oil ring issue?


I've never had this happen before and am a bit stumped.

Ideas?

Do you have an inspection camera to look at the piston top, cylinder wall, intake port?

Are the viper upper intakes wet or dry?

[ultradriver10000]

Amazon has bore scopes for $20 that work really well off your phone. The intake doesn't have coolant running through it, but it is port injection. what year viper engine is it again? gen 2 or 3? The gen 3's are known for the weak pistons. I might have a gen 3 piston in the garage though.

[Krazybones]

Go get this as a backup DarkoScreenshot_20200520-101004_Facebook.jpg