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1980 JD 400

4471 Views 46 Replies 20 Participants Last post by  markdtn
I have acquired the tractor I learned to do work on about 30 years ago. THE John Deere 400!. My grandfather bought it brand new in 79 or 80. My dad used it from 1992ish until 1996ish when the engine scattered. This tractor has been sitting untouched in my garage since the last time it moved about 25yrs ago. Other than the scattered engine, it is cherry- Grandpa and dad took very good care of it. My question is........is it worth my time and money to get the beast going again? (After my son and I get our 60 rebuilt [see introduction thread])
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If the block hasn't been destroyed/broken then something like this would get you up and running with some work.
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I would guess these must be aftermarket parts, not genuine Kohler. Doesn't mean they are bad though. I have used the aftermarket kits on multiple one cylinder Kohlers, with good results.
They are, I believe they may be china manufactured but the guy and company is from Maine if I remember correctly.
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Jim one thing is doing an oil change add the recommended amount from the manual and then check the dipstick. Sounds obvious right? Those onans for some crazy reason always have oil very high on the stick till you wipe it and recheck, then it gives a correct reading. The Kohlers also can have the oil pressure turned up. Idk about rods breaking though. My idol says they just break, no rhyme or reason. 🤷‍♂️🤷‍♂️
400’s have Kohler K582’s, not Onan

Unless I totally misread what you were trying to say, then just ignore me
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CAD or USD for that pricing Army? Currently 400 hitches are $410 or $450 depending on Cat 0 vs 1. Holy heck are X700 series cat 1 hitches expensive!
They actually have K532's with the occasional K582 if the original engine was replaced on warranty. IIRC they stopped making them in 2000. I'm almost positive sure I have one of those engines. Not gonna pull the heads just to check the bore though. Never saw one myself (that I recall) but some 400's apparently came with an Onan towards the end of the model run. Or maybe they were actually a warranty install when they ran out of K582's. I dunno.
I plead that 5th if this is a US court. :LOL;
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