What to look for in 4010 diesel tractor at an auction

chas036

Member
I will going to an auction this week and there is 4010 diesel I am interested in. Already I did a walk around and checked the oil for water , and the pto for looseness and everything looks good except for some leaking of water out the weep holes which I was told is normal for a tractor this old.

My question is,,,, when I see the tractor running at the auction, how can you tellif the rings are bad?

With a gas tractor, when you see a lot of blue smoke, this is a good indication of bad rings, but diesels blow smoke naturally, so how do you know if the rings are bad?

Also, how do you know if the injector is bad?

Sorry fior the questions but I have no experience buying diesels
 
Rings will often affect the exhaust or make for heavy blowby at the breather if considerably worn on diesels. Bad injectors will often make for a miss or skip. Rings and injectors can need maintenance even when they do not show outward signs regardless of brand. Did you check the draft control yoke for leaks as stated in my other post to you? The yoke is the wishbone shaped piece of metal under the transmission case. It would be nice to know if the hydraulic control valves have an internal leak which can be tested by plugging in a cylinder to see if it creeps. If you do not have such a cylinder then maybe you could borrow one plus remember the tips on the 4010 are unique to Deere tractors prior to 1982 so you may need to stop at TSC. Remember that you are looking at something 55 years old or more so even the most thorough inspection may not catch a pending maintenance issue. Don't matter the brand.
 
I saw your post on the other forum. Like was said, if you are serious about this tractor I would have a Diesel and/or JD Mechanic do an inspection for you. As was said also, any cost would be well worth it. Then, if you buy it you already have items you can act on either in your own shop or at the dealership/your favorite service shop.

Paul
 
The best way is ask owner or have someone that knows tractors.I looked at one and I thought it was odd there was no blowby and as I checked it out a piece of steel wool blew out of breather tube.
 
Yes, and usually I am the guy touting hiring somebody to look at the tractor if you are not sure yourself. And I am the guy who makes mention ownership history is important as well.
 
Yep, I had a similar experience. On a 2510 the breather pipe connection in the valve cover had been intentionally plugged. Paul
 
I knew a tractor jockey years ago that would drill a hole in the bottom of the muffler and run a hose from the vent to it to hide a tractor with bad blowby. He was not in business for very long. Tom
 

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