P220 Restoration

mryeti117 said:

Anyone know the torque for the 2 1/2 bolts for the oil filter mount on a p220 cannot find it anywhere thanks in advance

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These bolts are 5/16" and also have a copper washer under the heads for sealing purposes. The torque is 8-10 FTLBS or 96-120 INLBS.
This is a fairly common oil leakage area and Onan has upgraded the gasket for this adapter.

mryeti117 said:

Thanks Bob where did you find that if you don't mind me asking

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On the torque chart it shows the specs for 5/16" nuts and studs and this is what I use. The service manual is lacking info in some areas, but it is all that we have.

Yes, the rubber cushions go under the frame with a large flat washer and the bolt. Two of the cushions and flat washers have a flat cut as they are close to the side of the frame. Flat washer and locknut up on the engine mount toes.

If you have the intake manifold and exhaust system removed, look for an air passage between the intake and exhaust valves that will need to be cleaned.
This area is what is called "the valley of death" as when it is plugged up this area of the engine overheats.