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Onan 20 Hp P220 Worth Anything?


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#1 adolphsson09 ONLINE  

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Posted November 13, 2013 - 04:33 AM

I just bought an onan 20 hp p220 from a guy that took it out of a john deere because what he said anyways was that it was missing and he needed the tractor right away so he replaced the engine with a new one  Question is are these worth anything and could I use this as a backup for my snapper 1855 Im thinking if its not feasible to get running then would sell it outright or part it out My 1855 has the 18 hp with the points and this one doesn't have the points setup and that scares me a little



#2 AverageJoe OFFLINE  

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Posted November 13, 2013 - 05:56 AM

If it is a P220G, it would be of interest to a lot of JD 318/420 guys.

 

Whether it would fit your 1855 without significant modification, I have no idea.

 

Not running, it would be worth only $100-$150 as a core, but running decently probably $500 - $700.



#3 jms180 OFFLINE  

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Posted November 13, 2013 - 06:15 AM

Running would sell for $500 here

#4 KennyP ONLINE  

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Posted November 13, 2013 - 06:56 AM

That's the engine I just put in an Sears FF. If you were closer, I'd take it off your hands! I like them!



#5 BairleaFarm OFFLINE  

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Posted November 13, 2013 - 07:03 AM

If you were closer, I'd take it off your hands!


X2

#6 Username OFFLINE  

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Posted November 13, 2013 - 07:40 AM

I think it is a lot quicker to tune up an engine than to replace it.

 

Any signs of the heads having been removed?

 

Any Onan engine with a miss is guilty of a loose valve seat until proven otherwise.

 

I would do a compression check.


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#7 KennyP ONLINE  

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Posted November 13, 2013 - 08:06 AM

The B48 on my GTV had a miss. It had sat for several years. I soaked the cylinder with MMO and put some in the oil. After running it for a while the miss went away. I think the rings had stuck. Doing real good right now!


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#8 bhts OFFLINE  

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Posted November 13, 2013 - 08:21 AM

That motor would bolt right in but the problem would be your pto would not fit it as the pto side of the crank is bigger in dia then the one in your massey.


Edited by bhts, November 13, 2013 - 08:21 AM.

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#9 Jehtro OFFLINE  

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Posted November 13, 2013 - 08:30 AM

Does the 420 have the same onan motor as the 318?

 

 

If it is a P220G, it would be of interest to a lot of JD 318/420 guys.

 

Whether it would fit your 1855 without significant modification, I have no idea.

 

Not running, it would be worth only $100-$150 as a core, but running decently probably $500 - $700.



#10 JD DANNELS OFFLINE  

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Posted November 13, 2013 - 08:55 AM

It's definately worth looking into. Along with GT's about 70% of all the small skidloaders from the 80's ran Onan engines.

I was a litle slow jumping on a Case 1816C with an Onan in it for $2,000. They told me the left drive motor was bad. I've seen it running since and regret not buying it.

The last 3 Hydra-Macs and an Owatonna(Mustang) I looked at all had Onans too.


Edited by JD DANNELS, November 13, 2013 - 08:57 AM.

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#11 ENafziger OFFLINE  

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Posted November 19, 2013 - 03:18 PM

I've got an Onan P220G in my Snapper 1855.  One frame rail has to be notched slightly, but otherwise a very good fit!

 

--Eric


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#12 AverageJoe OFFLINE  

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Posted November 19, 2013 - 06:25 PM

Does the 420 have the same onan motor as the 318?

Maybe.  The 318 shipped with either a B43G or P218G.  The 420 shipped with either a B48G or P220G.  IIRC, the differences between the P218G and P220 G are the carb and cam.

 

A lot of dealers would replace blown 318 engines with P220Gs, so there are many out there with them.


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