Before I buy

I think the main thing with the dyno is you're going to see how the engine performs when pushed to the max. A blowby test is going to tell you the condition of the rings/liners, oil pressure (using a test gauge, not the one on the dash) will give you a good indicator of internal engine clearances. Oil analysis (a good one) will give you a good indicator of what may be leaking/wearing inside the engine. 1 oil sample is useful but its much more effective if the current owner has been doing them and has them saved.

 

A dyno is a good tool.

Ive been on them before. And it will make a tractor pull it's collective rears off. We tried to make the one overheat on one and pushed the dyno short of cooling water that night.

It finally overheated again in Texas, problem was traced to a rusted temp sensor deep inside the engine. Wondered how that happened. That little thing handicapped us for a month.

 

That word rebuild is thrown around pretty freely, Not sure how someone doesn't have paperwork on a rebuild or at the very least a recite that he paid for one. More than likely him and his buddy got together with a case of beer one weekend and threw a cylinder kit in it and called it a rebuild. Part of the problem with the dyno is having one close by, I doubt the Owner is going to let you drive off in his truck to get one done since your not covered to drive the truck, and is he willing to take the truck and get one done.

 

If it was in framed 200k miles ago and he doesn't have the paperwork, means it probably was never in framed.

I have every receipt for any part or service done on my tractor since 2004 and I can produce it for inspection at any time.

If this seller doesn't have any receipts or paperwork for any service or parts, I would be very leery.

 

Even if you do all the work yourself, you still have a paper trail of all the parts you purchased. No paper work means it didn't happen it's that simple.

 

If he doesn't have the paper work how can he take it off his taxes

 

Move on unless you are getting it for cheap, I mean cheap cheap.