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Discussion Starter #1
What is the basic difference between the two engines? Is one better than the other? Are there any difficulties in rebuilding a B43G?

Thanks!
 

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The Magnificent
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The biggie is points and condensor ignition in the B43G versus electronic ignition in the P218G.

Neither rebuild is particularly difficult unless we are talking a failed engine (thrown rod, etc.).
 

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You might want to look up member Onanparts and PM him he has answers for all of your Onan questions. I know that you have to be very careful with pistons and rings for them! There is a thread on here from him that explains it all!
 

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Discussion Starter #5
Yeah, I actually have that bookmarked!

I'm going to look at the tractor tomorrow, still working out what to tell the wife... she'll be unhappy that it doesn't run... (yet!). I could just hide it at the shop...

Dad may be down for X-mas and he's a whiz with engines. I could maybe talk him into overseeing the project... his health ain't so good.

Let you guys know what I find tomorrow!
 

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I would really caution you jumping into one of these that doesn't run. You can get into a good amount of money real quick. They are good engines but Onan is proud of their parts. Especially if the wife isn't on board. Been there done that - not fun.
 

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Or.....you could go this route on a rebuilt Onan

http://cgi.ebay.com/CASE-446-448-ON...724?pt=LH_DefaultDomain_0&hash=item3f02cf8f54

I have not heard of anyone with personal experience with this e-bayer but he appears to have a good feedback record. I checked the sales he has made of these engines and 3 or 4 have purchased the re-built Onan's over the last year or so. All of them appeared to have a good experience with the rebuilt engine. I also noticed the price on the rebuilds has gone up about $200 over the past year! :fing20:
 

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$1,229.95 for an Onan re-manufactured long block, looks pretty good.

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Beaumont { :>)) www.petperfectexpress.com
Golden Rule - "he who has the gold, makes the rule"
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http://www.mytractorforum.com/showthread.php?t=135888 http://www.mytractorforum.com/showthread.php?t=136600&page=3
1992 JD 318 original paint w/484 hr. on P218g Onan & #49 snow blower / 1998 JD GT262 w/brand new Kawasaki OHV & 48" rebuilt deck
http://www.mytractorforum.com/showthread.php?t=135838
 

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Discussion Starter #9
Hey guys, thanks for the help/info! I went and looked at this 1983 318 I was sorta interested in. It's not in as good a shape as I would like, the engine looks to be shot, and or course, the wife said "No!"

The gentleman I spoke with seemed to have a lot of JD knowledge and 4 or 5 JD tractors. He spoke of having a lot of parts and Onan engines around the homestead. This kinda scared me off - if he was so good with the Onan engines and rebuilds and such, why would he not rebuild/repower the 318 and get much more for it?

Anyway, here's the link to his ad on CL and some pictures I took because... everybody likes pictures!

http://greenville.craigslist.org/grd/1943158997.html

Here's the body of the ad:

"I have a 1983 john deere 318 , it has rear wheel weights, dual front hydraulics, power steering, 48 inch deck, when i got this john deere the motor was skipping, broken rod, i have torn the motor down and the only damage was the rod, i have another rod and piston, have already done the valves, just need a set of rings and gasket set, the overall tractor looks good, the power works good, and the mower lift works good, for more info call. 864-323-4753 Chuck . I will put pics on later"









 
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