Onan p220 engine rebuild

[Joey baga donouts 0]

I have a 1989 wheel horse 520H. Original wheel horse with Onan P220. 
I’m looking for someone to rebuild the engine. Valves and pistons. A top end job. 
can domineering suggest a good shop in PA NY of NJ. 
Also what’s a job like this cost. 
thanks bad a donuts
 

[ri702bill 12,401]

You may be better off repowering it with a Vanguard engine....

[953 nut 67,250]

I could use a bag of donuts, or at least one this morning.        

Onan parts are going to be very high priced and the labor cost for machining a two cylinder engine will more than likely be higher than the cost of a replacement engine.

The big question is "what will you be doing with the 520?" If it is for general running around and light duty stuff a Predator Engine from Harbor Freight should do the trick. Also, will you be doing the work and do you have the tools and skill set to do an engine swap? You may want to consider the Honda V Twin from Repower Specialists.

https://repowerspecialists.com/collections/wheel-horse/products/wheel-horse-520-with-onan?variant=6979132817431

[clueless 3,421]

smallenginewarehouse.com (repower kit) 23hp B&S Vanguard $2248.00 free shipping as of today. You will be hard pressed to just get the top end of your Onan done for much less and you still don't have a new engine. I did a repower on a Simplicity 18hp a few years back with one of their vanguard 18hp kit, took about 2 hour with the help of a neighbor, probably less time with out the added adult beverages. It fired right up and has been running just fine for the last 4+year, also the Vanguards are easy to work on and parts are readily available. The folks at SEW are easy to work with (765-946-3812).

[davem1111 2,282]

5 hours ago, 953 nut said:

I could use a bag of donuts, or at least one this morning.        

Onan parts are going to be very high priced and the labor cost for machining a two cylinder engine will more than likely be higher than the cost of a replacement engine.

The big question is "what will you be doing with the 520?" If it is for general running around and light duty stuff a Predator Engine from Harbor Freight should do the trick. Also, will you be doing the work and do you have the tools and skill set to do an engine swap? You may want to consider the Honda V Twin from Repower Specialists.

https://repowerspecialists.com/collections/wheel-horse/products/wheel-horse-520-with-onan?variant=6979132817431

 

Donuts....  One of my favorite quotes from a TV show is Homer Simpson saying "Donuts:  Is there anything they can't do?" 

I don't know about the cost of a rebuild, and I know these new engines are relatively expensive, but you are unlikely to regret the investment.  I have a GT-1848 with a Honda GX610 engine, repowered by a previous owner, and I love it. My only warning would be, explore your exhaust options first.  Mine had part of the hood cut out so the "stock" (?) muffler on the Honda engine could fit, but I switched this to a stack and am going to be repainting another uncut hood to put on it. (Soon, I hope).

 

 

 

[lynnmor 8,878]

One source: Kustom

 

A local NAPA store in York, PA will do the machine work but you need to completely disassemble and reassemble, hopefully they are still in that business.

[Bill D 2,979]

Another option is install a Briggs Opposed Twin from a Sears tractor.   Pretty easy to find.  You would ha e to source the PTO parts from one of the used parts vendors.