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  • John Sullivan
    • Active

    Does anyone rebuild  the Onan P220G engine? Is it better to replace this engine? It has 1000 hours.

    Thanks

    John

     



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    I’ve rebuilt several Onan p series engines. The issue with the onan engine is that the new parts are extremely high priced. 

    Depending on the issue most I just part now if the crank needs to be turned or if it needs to be bored. What’s going on with it? You may just need it decarbed and valves adjusted. If that’s the case parts will cost around 100.00. 

    I decarb everyone I get. And start fresh. 

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    If you decide to buy a replacement engine I have one that runs good it is selling for $600. If you are interested you can email me at aztractor255@gmail.com . Also if you decide to rebuild your engine I sell new and used Onan parts. My number is 1-717-821-2542 and you can check out our website at a-ztractor.com

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    Hi

    I was told the compression was low, but as of yet, I have not received the numbers. I will post more once I receive them

    Thanks

    John

    Hi ,

    How many hours on the used engine?

    Thank you

    John in Vermont

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    On 12/11/2017 at 7:02 AM, richmondred01 said:

    You may just need it decarbed and valves adjusted. If that’s the case parts will cost around 100.00. 

    I decarb everyone I get. And start fresh. 

     

    +1 on the above. If the valves have never been adjusted that may be all it needs unless it has other issues.

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    HI Everyone,

    The rebuild is done. Decarbonized the heads,removed, replaced, seated in new exhaust valves, removed pistons cleaned up cylinder walls, replaced rings, cleaned re-installed all other parts with new gaskets as needed, Runs exceptionally well adjusted idle compression 115 in front cylinder 110 in rear. Pretty good for an 90 520 with 1100 hard working hours :). I thank everyone for their input and advice. This is for sure a site with a very exceptional group of people. A big THANK YOU once again saved a lot of money, and gained a lot of experience and knowledge.

    John in Vermont

     

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    Thank you, and a big thank you to THE HORSEFIXER, whose videos I watched on youtube about rebuilding a P220G onan very insightful and helpful.

    John in Vermont

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