John Deere 1050 Engine Opinion

[kleinhhl]

I did an in-frame rebuild... everything measured within specs so I didn't bother replacing the main crank bearings. It's odd because I'm aware of the 8 vs 10 bolt head gasket change but the head gasket that didn't work had the 10 bolt pattern but didn't fit around the raised part of the sleeves... the metal rings in the head gasket actually fit on top of the that area which is our theory about why it didn't seal worth a ****... anyway, my theory is that the S/N break in the JD parts database might refer to the engine S/N on the side of the block and not to the tractor S/N on the rear near the PTO... just a theory though.


DLTTrekkers, I will have to investigate further as to the cause of the chattering when raising / lowering the bucket on the FEL of the tractor... maybe it's something else. Thanks for all the replies.

 

[TimberHole]

I believe the metal ring should rest on the shoulder of the liner. I wish I had measured the ID of the Deere head gaskets. Here is a pic of an aftermarket gasket I received from Weaver Tractor as part of an overhaul kit. It looked cheap to me and I obviously didn't use it. I think the Deere gasket is the way to go. Regardless, I'm glad you got your fixed.

The break in serials listed in the manual is based on the engine serial.

This gasket is about 1/8" larger than the cylinder bore. The caliper is set to the bore service limit.

 

[kleinhhl]

Okay thanks, that's something I definitely missed in the service manual... the head gasket on there now rests on the shoulder while the lower S/N gasket metal rings fit on top of the raised portion of the sleeve.

I believe the metal ring should rest on the shoulder of the liner. I wish I had measured the ID of the Deere head gaskets. Here is a pic of an aftermarket gasket I received from Weaver Tractor as part of an overhaul kit. It looked cheap to me and I obviously didn't use it. I think the Deere gasket is the way to go. Regardless, I'm glad you got your fixed.

The break in serials listed in the manual is based on the engine serial.

This gasket is about 1/8" larger than the cylinder bore. The caliper is set to the bore service limit.

View attachment 548384View attachment 548385

 

[Ted22]

Just wanted to update this thread and thank TimberHole for all of his advice. My Dad and I spent last week (~6 days of work and 10 hour days) rebuilding the engine in the JD1050. At certain times, we weren't sure if the thing would go back together and we made one major screw up that we were able to fix relatively fast. But I can say now that the tractor runs and purrs like a kitten. Everything seems great...

We started the first few days by pulling the other two sleeves / pistons and cleaning them up. There was some scuffing on the pistons but nothing too major. The oil control rings on all three pistons broke when they came out though. We thought this was a result of an overheating event or water in the oil in the past.

After spending a lot of time cleaning and preparing all of the new parts, we got everything back together Friday night down to the last bolt tightened and started to fill the radiator with water. Well, we heard lots of water dripping and it was coming from the head gasket area. We were completely devastated. These JD1050 tractors have two head gaskets depending on a serial number break and I had called a JD dealer with my S/N and was told to order the early head gasket based on my S/N. When we put it on, we noticed that the fire rings on the head gasket laid on top of the raised edge of the sleeve that sits above the block surface and not around it. We figured that this was the problem and fortunately, I had the later S/N head gasket in stock that I had previously ordered thinking it was the right one.

Well, after dinner on Friday night, we pulled the head again and replaced the head gasket with the correct one. It was a marathon but I think we pulled the head and got it back together in less than two hours which is pretty good, in my humble opinion.

It wasn't until Sunday that we were able to fire her up but after bleeding the fuel lines, she fired right up and ran beautifully. Hardly any smoke at all! I'm running JD break-in oil in her and the proper JD Cool-Guard II coolant now. I'm hoping for years more service from this tractor.

I don't have many pictures, so sorry about that. The next job is to sort out the hydraulic system which I believe is getting air into it from a leaking SCV, cylinders and old hoses.

Thanks! Same thing happened to me! Got my parts from Hoye Tractor… gonna call in the AM. Those guys are so good…. Not sure I can get mad at them. Do hope they can help me a bit on the right head gasket. The only other one was $50 vs the $140… the one time I don’t go cheap I get burned… oh well.