JDcrawlers Messageboard

I would change the seal.

What winch model? What is the part number of the shaf the is bent?

Best regards, Bruce

http://www.j-kequipment.com/winch_parts.html


These people are very knowledgeable. They have great selection of parts.

Best regards, Bruce

It sounds like your engine had a very poor maintenance cycle. This leads to sediment in the cooling system, couple that with fluid cavitation and you end up corrosion in the liners and block. Thank you for expanding on the mechanic’s findings. Repair vs replace.?? Best regards, Bruce

I’m with Jim on the block. What is ate up so badly that makes it un-rebuildable? Short of a catastrophic failure, diesel blocks have enormous rebuild potential. Rebuild your dozer if you are in it for the long run. If you just need it moving, locate and place a used engine. I live on a small cow-cal...

Just looking at the pics, I would say the asking price is near fair. It could be parted out for a profit, at his asking price. If the finals, steering clutches, rear end, trans and engine are solid/useable, I could make this a nice crawler with a complete new u/c. Assuming I didn’t pay myself for la...

Good morning and welcome, Stan has a very nice post in the "John Deere Crawler FAQ's" section that lists the models, years and SN breakdowns. For a 450B, SN 164,047 - 185,798 is listed as a 1974. The floor boards are 2 pieces, one left and one right. The are a steel diamond plate material. Likely no...

The IP can be removed easily, without any major engine component removal. Before removing the pump, identify a window in the bell housing. It should be on the same side as the pump just in front of the flywheel. There should be a small stamped steel cover bolted over the inspection window. The bolt ...

I would check the vent in the tank to make sure it is open. The sump at the bottom of the fuel tank will need cleaned (it has been neglected for years). Make sure the fuel lines to the filter and the injection pump are clean,clear. Open the check valve on the injection pump return line. Check it for...

Is the original carb for sale??

Given the age of the machine, there is a good chance the carb has been apart several times. Is it possible a prior owner could have lost some vital piece(s) or put in some off pieces(say from another carb, tractor etc). Going through a exploded parts break down with a fine tooth comb maybe a good id...

? To Lavoy. Do the Dubuque carbs have passages that can be stubborn and need cleaned with a drill bit(by hand) like the Waterloo carbs can be known. Bruce

I have had condensers do weird stuff as well. My JD 630 had a lean issue with throttle, lots of troubleshooting later, I changed the condenser with an NOS (USA made) one. No more issues. Maybe it can store a charge at slow idle but no faster ??

If the fuel and carb system are up to spec as you have discussed, I would start to troubleshoot the ignition. It has been my experience that many a problem blamed on the carb were actually ignition system problems, condenser, points, etc.. I think the compression test is a great idea, also. I agree ...

I risk be over-simple, but is the air cleaner clear of obstructions? I know you said it was running, but it was unclear to me if the air cleaner was "hooked up". Is the governor functioning properly? I have much more experience with Waterloo two-cylinder carbs. We actually use small drill bits about...