1 5/16" or hand crank or grab with hand on belt and try to rotate. You should rotate thru the compression and exhaust stoke to ensure the valves are free although they could be stuck in the up postion. You would have to do a compression test to comfirm any stuck open valves. It rotation of engine by hand you should also feel compression resistants.
Typical engine cracks are located behind the oil filter below the flat spot with the serial #, freeze plug, and drain petcock.
Block down the clutch pedal with a piece of 2x4 wood.
To check clutch; with cutch pedal out put in neutral grab and roll rear tire, Then with clutch pedal still out put in gear and grab and roll rear tire. Then with clutch depressed repeat process in neutral and in gear. All tires should be aired up.
If you floated $500/$700 to owner you can bet the owner will want the $700. Once they get the higher figure in their mind it's hard to unstick that number no matter what the condition of the tractor.
IMO it's better to confirm a number. I myself do not work on tractors I don't own. BTDT and have had tractors sold out from under me because I was "nice enough" or maybe stupid enough to get them running without having a bill of sale in my hand. A running tractor is always worth more then a non runner.
The last "ran when parked" I bought about a month ago. I bought a carb, temp gas tank, coil and 12 volt battery and some jumper wires with me. After comfirming the deal I bypassed the electrical system, polished the points and drove it onto the trailer. PO stood there in amazement wondering how I did that and said if I knew it was that easy to get running I would have asked more money for it.
Kirk
Thanks for the detailed reply. I tried to check the S/N already and it was illegible, there were no cracks in the area and none by the petcock immediately below that I recall seeing, but I will look again in more detail.
Once I get it unstuck from the mud, I should be able to do the roll test. I have the Cummins in the same bay of the barn, I'll just have to reinstall the battery and fire it up. Worst case, I'll have to take down the barricade I built over the open end of the barn to protect the truck from the elements and turn it around to use granny first gear and a strap on the 8N. That will free it.
The shifter seems to be ok at least on the right side of the pattern, the pattern is different than the 9N from what I can tell, there is too much dirt on the tranny to see any numbers.
I'll come up with a wrench somewhere, I about lost a finger in a belt on a Corvette turning it over by hand setting timing and valves from scratch for a friend but that's a long story.
Since this farm is essentially abandoned (bought for the land, the house and majority of the barns are worthless), I can work on the tractor without anyone knowing what I'm doing. I don't plan on getting it running, there is no key available and I don't want to do a lot of throwing sparks in there. I just want to assure myself nothing is locked up or terminal on it before proceeding.
My friend doing the negotiating is fairly shrewd, having a business of his own buying and reselling used equipment. When I give him a range of $500 to $700, he'll start at $500 and keep $700 as a fallback.
I've bought 2 or 3 cars that "didn't run", knowing the problems weren't as bad as they seemed, and drove them away an hour or two later. I know that "if I had known THAT was all it needed" look. Point is, they didn't know or were too lazy or didn't care to figure it out, so that's the penalty for not caring enough to figure it out.
I appreciate all the advice and input. I missed the 9N after I let it go, it was more useful than I thought. Plus, I just have problems letting an interesting vehicle sit somewhere and deteriorate, especially something that is complete and original.
I should know by the end of the weekend.
Thanks