Thread: Broken valve guide bosses. WTH?

Originally Posted by Sirayden

There was a service bulletin about seals coming off. I think it was mainly for the exhaust valve seals.

That would make sense if it was the exhaust. Plugs aren't fouled and no carbon on the intake valves, but great compression and only smokes a tiny bit when idling for long periods.

Is there any way to prevent this? I used felpro seals.

Okay, thanks. I'll get back to you if I decide to buy a pair.