Help me gather parts for my Onan 316......valve adjustment

I am pretty sure that the valves on my Onan p218 in my 316 have never been adjusted. And I was wondering if I have all the gaskets I will need to do the job.

154-2746 Exhaust Gasket B & P Series .... need 2

154-0733 Carb to Intake Gasket B & P Series

154-2495/154-1446/154-2745 Intake Manifold Gasket P & B Series .....need 2

110-3709 Valve Cover Gasket B & P Series .....need 2

This is just because mine is long gone.
122-0502 Oil Filter to Shroud Gasket

And this since mine is cracked.
Onan 123-1429 Crankcase Breather Tube B & P Series

Does that look about right as far as gaskets go?


I might as well seal up the intake while it is off since it does have a slight hunt or surge at idle and it seems like that is the thing to do.

Am I missing anything?


Oh yeah, I almost forgot that I have new firewall heat shield foam for the firewall as well so I guess I'll be pulling the motor.

My p218 runs well and does not smoke at all but when it is hot and you shut it off it is hard to start till it cools down. To me (being an old gear head) it seems like adjusting the valves would be the right place to start.

I am in that space of no grass to mow and no snow yet so I'd like to do this in the next few weeks. Any help would be great!