Quote:
Originally Posted by pemz0r
. I believe it's the valve seals are letting oil in.
My last compression test 11/2/18 -17,502 miles
1 - 119 PSI
2 - 118 PSI
3 - 120 PSI
4 - 120 PSI
5 - 120 PSI
6 - 130 PSI
On the 3/14/18 - 15,581 miles
1 - 130 PSI
2 - 130 PSI
3 - 130 PSI
4 - 130 PSI
5 - 130 PSI
6 - 130 PSI
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I would think you should have at least 150+ lbs from a decent seal of rings and valves. Under 125 is very bad. From the poor compression numbers, the problem has to be more than the valve guide seals. Way too much oil loss. If you don't have or want to buy a leak down tester, compression testers can usually allow for the gauge to be removed and an air line connected. You can then listen to see if the air is leaking past the rings or valves with the piston at TDC.
Running rich will also wash away the lubrication and contaminate the engine oil