Onan P216/18/20 broken starter mount repair

[RED-Z06 2,221]

My new to me P220 i found for a different tractor came to me with an undisclosed cracked starter mount under the cylinder.  There are options, i could put on a sump from a B48 onan and use the starter for it, but..good sumps are a bit spendy and a good starter is more money.

 

I opted to at least try to get the block fixed, my neighbor has an aluminum spool gun mig setup and said he'd take a crack at it...i told him, if it fails i still have a way out.

 

The crack was 2 obvious and one hidden roughly 1" long cracks along the inner mount, this allowed the starter to deflect downward away from the ring gear and this had ruined the ring gear.

I put on a spare flywheel and noted..about 5% mesh, just the tips of the teeth touched.  

 

My neighbor cleaned the Block well, i modified a vice clamp to hold the cracks shut and he tacked them in.after about 1 second of welding he would clean the surface again.  The process took about 20 minutes, he ground it down and i finished it off..the gear mesh is much improved now and it cranks as smoothly as any onan I've had.

 

It can be done, and with a wire gun no less 

 

https://youtube.com/shorts/2rtQHEBygfY?feature=share

[cod 120]

Good to see that you were able to fix it and I hope it holds up for years to come!!!

[Handy Don 12,233]

On 12/1/2022 at 7:22 PM, RED-Z06 said:

My neighbor cleaned the Block well, i modified a vice clamp to hold the cracks shut and he tacked them in.after about 1 second of welding he would clean the surface again.  The process took about 20 minutes, he ground it down and i finished it off..the gear mesh is much improved now and it cranks as smoothly as any onan I've had.

 

It can be done, and with a wire gun no less 

 

https://youtube.com/shorts/2rtQHEBygfY?feature=share

Great to see, thanks!

Skill, the right tools, and patience are pretty powerful!