Search found 2485 matches

by Jim B
Mon Jan 19, 2026 6:20 am
Forum: Late model JD crawler technical support
Topic: How does this seal?
Replies: 1
Views: 51

Re: How does this seal?

See your thread about this on Yesterday's Tractor for my thoughts.
by Jim B
Thu Jan 15, 2026 1:24 pm
Forum: Late model JD crawler technical support
Topic: 450 C charging/starting issues
Replies: 6
Views: 174

Re: 450 C charging/starting issues

Yes, you can run a wire from the alternator to the starter solenoid. Without it going through a working ammeter you will not have any "on-board" indication of whether or not it is charging. Can you scan or take a good quality picture(s) of the wiring diagram(s) in your TM1102 manual? If you can and ...
by Jim B
Wed Jan 14, 2026 9:15 pm
Forum: Late model JD crawler technical support
Topic: 450 C charging/starting issues
Replies: 6
Views: 174

Re: 450 C charging/starting issues

I say use the wiring diagram and do it right. If you have the manual with the wiring diagrams it is not hard to sit down with the diagrams, figure out and remove the wiring the Motorola charging system had and insert the one wire needed for a Delco type one wire alternator, which basically is just t...
by Jim B
Wed Jan 14, 2026 6:15 pm
Forum: Late model JD crawler technical support
Topic: 450 C charging/starting issues
Replies: 6
Views: 174

Re: 450 C charging/starting issues

I had this all typed on the Early Models Board as you just as you made your latest post there. You can use the edit feature and delete the text and replace it with something like Moved to Late Models Board. The battery voltage is low and would be since the alternator is not charging. A properly work...
by Jim B
Wed Jan 14, 2026 6:31 am
Forum: Early model JD crawler technical support
Topic: 420 sprockets
Replies: 2
Views: 168

Re: 420 sprockets

The casting numbers on the sprockets might be used to identify them. I don't know what the casting numbers were or if they used the casting number as a part number. This would be assuming your 420 was never upgraded with 350 chains and related components. You can call Lavoy and see if he has a useab...
by Jim B
Wed Jan 14, 2026 6:03 am
Forum: Late model JD crawler technical support
Topic: 1979 jd 450c track loader hard to start
Replies: 3
Views: 165

Re: 1979 jd 450c track loader hard to start

I would start by talking with the shop that it came from and see what they have to say. A vendor should get the first call when there is a problem with their product. That is the best way to keep any warrantee there might be. When you timed it before pulling the old pump did the timing marks in the ...
by Jim B
Mon Jan 12, 2026 9:16 pm
Forum: Late model JD crawler technical support
Topic: 1979 jd 450c track loader hard to start
Replies: 3
Views: 165

Re: 1979 jd 450c track loader hard to start

Out of time?

How did you remove and replace the injection pump? Did you time it before pulling the pump?

what is the replacement pump? Used, rebuilt?
by Jim B
Sun Jan 11, 2026 6:03 pm
Forum: Late model JD crawler technical support
Topic: Jd450 straight oil in bell housing. How to find it
Replies: 8
Views: 252

Re: Jd450 straight oil in bell housing. How to find it

Did you ever get the SM2064 service manual? It would be a help to you at this point as it will be better organized than the parts breakdowns. To find the parts you will need to look at a minimum of the front cover drawing, the drawing that has the front input shaft and countershafts, and the clutch ...
by Jim B
Sat Jan 10, 2026 8:34 pm
Forum: Late model JD crawler technical support
Topic: Jd450 straight oil in bell housing. How to find it
Replies: 8
Views: 252

Re: Jd450 straight oil in bell housing. How to find it

Facing the shaft which way is your drill turning the shaft?
by Jim B
Wed Dec 31, 2025 9:25 am
Forum: Off-topic discussions
Topic: Happy New Year
Replies: 4
Views: 304

Re: Happy New Year

Best wishes to all for a safe and happy New Year.

Jim
by Jim B
Sun Dec 28, 2025 1:17 pm
Forum: Late model JD crawler technical support
Topic: 555G Rebuild Questions
Replies: 2
Views: 312

Re: 555G Rebuild Questions

Before the engine is taken down, I would say you should do at least the pressure tests for the driveline and hydraulics to get an idea of condition to see what may need attention. Ideally the flow tests should be done as well. The Operation and Test manual (TM1403) will have the procedures and speci...
by Jim B
Wed Dec 24, 2025 7:03 am
Forum: Off-topic discussions
Topic: Happy Holidays
Replies: 2
Views: 161

Happy Holidays

Wishing everyone a Happy Holiday Season and a Happy New Year.

Best wishes and Merry Christmas.

Jim
by Jim B
Wed Dec 24, 2025 6:56 am
Forum: Early model JD crawler technical support
Topic: Gearmatic 8A winch manuals
Replies: 11
Views: 12518

Re: Gearmatic 8A winch manuals

Paul only stops by occasionally these days, so it might be a while before he replies.

The link below should take you to a copy online that you can download and save.

https://www.dropbox.com/scl/fi/8eb4tapc ... c&e=1&dl=0
by Jim B
Sun Dec 07, 2025 11:22 am
Forum: Late model JD crawler technical support
Topic: John deere 350 4 cylinder
Replies: 3
Views: 470

Re: John deere 350 4 cylinder

There are many things I haven't seen or heard of however I'm with Leonard on this. I haven't heard of a 4 cylinder 350 or seen one. Two things come to mind. First is it might be a 1010 with 350 decals. The second is someone assembled it themselves. Study it carefully, look for serial number tags on ...
by Jim B
Fri Dec 05, 2025 9:17 pm
Forum: Early model JD crawler technical support
Topic: Sizing battery
Replies: 21
Views: 1865

Re: Sizing battery

Correct