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I am looking at a JD 318 with an hour meter that says 6xx hours. The current owner bought it from someone that was selling from their yard a few months ago. Current owner has done some work to it including redoing bearings in mower deck.

He doubts the hours are really correct. So do I.

My question is - Is there anything to look for on the machine that would indicate a more accurate amount of hours?

Thanks for your suggestions!!
 

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Diesels are awesome!
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Compression test, oil smoke, carbon on the piston(pull head), oil usage, knocking/tapping, thin oil(suggests gas getting into oil past rings), etc.
 

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Original front tires still installed? If the tread pattern matches the rear they probably are...and as such the hours may be correct.

Otherwise, a compression test would tell you what matters. The *average* Onan is getting tired at 1000 hrs, and usually ready for a rebuild at 1,500.


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