Todd,
I talked to a friend of mine that works on Onan generators. He said back when they rebuilt the P series they always put in a new oil pump. You can use this information as you see fit..
It sure sounds good, can't beat the sound of a twin exhaust Onan. 
__________________
Terry
O,100,72,102,123,104,124,105
125,129,149,1200,982
(2)2182s w/60in Habans
3225
|