Search found 356 matches

by B Town
Tue Dec 18, 2018 7:54 pm
Forum: Late model JD crawler technical support
Topic: JD 550 Converter Seal and Winch Shaft
Replies: 4
Views: 444

Re: JD 550 Converter Seal and Winch Shaft

I would change the seal.

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

Best regards, Bruce
by B Town
Tue Dec 18, 2018 7:49 pm
Forum: Late model JD crawler technical support
Topic: Diaphragm-operated clutch in JD 3325 winch
Replies: 5
Views: 706

Re: Diaphragm-operated clutch in JD 3325 winch

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


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

Best regards, Bruce
by B Town
Sun Dec 09, 2018 6:53 pm
Forum: Late model JD crawler technical support
Topic: Advice on 450c complete rebuild
Replies: 12
Views: 1032

Re: Advice on 450c complete rebuild

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
by B Town
Sun Dec 09, 2018 3:06 pm
Forum: Late model JD crawler technical support
Topic: Advice on 450c complete rebuild
Replies: 12
Views: 1032

Re: Advice on 450c complete rebuild

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...
by B Town
Sat Nov 24, 2018 6:05 pm
Forum: Late model JD crawler technical support
Topic: Weighing out options--Which dozer should I buy? A 450, 450B, or a 350?
Replies: 29
Views: 2200

Re: Weighing out options--Which dozer should I buy? A 450, 450B, or a 350?

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...
by B Town
Thu Nov 15, 2018 10:18 am
Forum: Late model JD crawler technical support
Topic: 450b age?
Replies: 1
Views: 360

Re: 450b age?

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...
by B Town
Mon Nov 12, 2018 6:14 pm
Forum: Late model JD crawler technical support
Topic: JD 450C loss of power when put in gear
Replies: 7
Views: 771

Re: JD 450C loss of power when put in gear

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 ...
by B Town
Sun Nov 11, 2018 7:21 pm
Forum: Late model JD crawler technical support
Topic: JD 450C loss of power when put in gear
Replies: 7
Views: 771

Re: JD 450C loss of power when put in gear

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...
by B Town
Fri Nov 09, 2018 12:45 pm
Forum: Early model JD crawler technical support
Topic: carb problem
Replies: 45
Views: 3497

Re: carb problem

Is the original carb for sale??
by B Town
Mon Oct 22, 2018 9:11 pm
Forum: Early model JD crawler technical support
Topic: carb problem
Replies: 45
Views: 3497

Re: carb problem

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...
by B Town
Mon Oct 22, 2018 8:58 am
Forum: Early model JD crawler technical support
Topic: carb problem
Replies: 45
Views: 3497

Re: carb problem

? 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
by B Town
Mon Oct 22, 2018 7:12 am
Forum: Early model JD crawler technical support
Topic: carb problem
Replies: 45
Views: 3497

Re: carb problem

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 ??
by B Town
Mon Oct 22, 2018 5:41 am
Forum: Early model JD crawler technical support
Topic: carb problem
Replies: 45
Views: 3497

Re: carb problem

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 ...
by B Town
Sun Oct 21, 2018 5:43 pm
Forum: Early model JD crawler technical support
Topic: carb problem
Replies: 45
Views: 3497

Re: carb problem

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...
by B Town
Fri Oct 19, 2018 8:53 pm
Forum: Late model JD crawler technical support
Topic: 450C loader losing hydraulic power
Replies: 8
Views: 777

Re: 450C loader losing hydraulic power

JWB Contracting, Thank you for correcting my mistake. Bruce