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Discussion Starter · #1 ·
I've been wanting to pick up another 300 series to have in addition to my 318. The goal is to have one that is mostly dedicated to mowing while the other does work with the other attachments (back blade, front blade, etc...).

So I ended up with this '86 316 Onan. I bought it knowing it had possibly a major engine issue, but the price was good enough and the rest of the tractor is in nice shape so I picked up it.


Until I get the engine out and get a better idea of how bad the damage is, I'm on the fence on whether or not to rebuild or repower. Another option is to look for another B43 to put in it, but I'm not sure it's worth it, but it would likely be the cheapest option.
 

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Maybe look for a P218.
 

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I put a P220 in my 316. Had to make an adapter for the driveshaft as you need a longer one for the P series engines.
 

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I have the original engine from my 84 316. It runs, but needs rebuilt. Smokes pretty good.
 
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I had the P218G rebuilt for my '87 316! That was in 2011. I sold the tractor in 2017!
 

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Discussion Starter · #13 ·
I've had this tractor back together for a little while now, and I'm pretty happy with it. It mows really well with the new engine. I also picked up a power flow bagger system for it recently. Hoping to get an update video out soon.
 

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Late to the party, but that poor Onan...that's what happens when someone ignores a rod knock.
 

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Discussion Starter · #16 ·
Just a quick update on the 316. It's been pretty much perfect since the engine swap. It gets used weekly for mowing around here while the 318 is dedicated to hauling or anything that needs the 3-point. I really like having two tractors since it was sort of a pain to swap back and forth between attachments. I do miss the power steering that the 318 has while I'm mowing with the 316. From what I understand it's more trouble than it's worth to swap it in, and I'd be better off finding another 318 if I wanted it that bad. Right now I don't, so the armstrong steering it is.
 
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