(800) 853-2651
SHOP NOW

4020 keeps breaking gear off starter

J

johndeeregreen

Member
Its a 4020 Diesel, 24v system. The gear on the end of the starter keeps breaking. The starter quit working, so I took it to the local starter repair place in town, they rebuilt it and put a new gear on the end. The original gear was fine. I only had it a week, and the gear broke off, they put a new one on at no cost. That one lasted a week and a half, same thing happened. Took it back, they said the armature was bent, so they replaced it and put another new gear on it, cost $180. That was about about 2 weeks ago, and this morning the gear broke off again.
What is my problem? Is something wrong with the flywheel?
 
Keep in mind that the tooth count is different between gas and diesel flywheels,wondering if you starter guy is on the right page...
 
(quoted from post at 18:23:39 02/10/13) Did you inspect the ring gear before you installed the starter?
Have you been using ether to start it?
Click to expand...




Yes I did, it looked pretty good. There was a few very very small nicks in a few places, but I wouldn't think enough to bother anything.

No, haven't used either.


I'd count the teeth on the gear, but only have one of the two pieces.


I need to put a clutch in it soon, maybe I'll put a new flywheel on it too.
 
Go back and get your money from the rebuilder and go and buy one from Deere. I had problems with a drive also from a rebuilder after the third one he wouldn't replace them. Said they never had any problems. BS Then a few months later they finally admitted to have a bad batch of them. No kidding. chris
 
(quoted from post at 02:49:35 02/11/13) Go back and get your money from the rebuilder and go and buy one from Deere. I had problems with a drive also from a rebuilder after the third one he wouldn't replace them. Said they never had any problems. BS Then a few months later they finally admitted to have a bad batch of them. No kidding. chris
Click to expand...




I think this is what I'm going to try next.
Thanks!
 
Hi
Just a thought I wonder if the guys have set the travel of the solenoid engage arm on the drive too short, and it hammers the drive against the back of the starter nose and breaks it off as the soleniod pulls it to far in. Some starters have adjustment for it. I have seen a few different ones do this in my time. my book doesn't show much on JD starters though. So might be a bit of a guess on this one.
Regards Robert
 
FYI; I put a diesel starter that was converter to 12 volts on our GAS 4020 by just switching the drive. I think the armature shaft was larger back where the bushing goes but was not where the drive sets.
Only reason I even tried this was because I had these parts laying around and didn't cost me anything.
 
Thanks, the ones I've seen are quite a bit different, I was fighting a late 4020 LP once and couldn't find much to work with. chris
 
Our 4020 gas is an early one 1965 ? and that 24 volt starter came off a early jd500 TLB (3020)tried the starter conversion on the 500 and I didn't like it. Didn't seem to turn over very good ? so I got a late 4020 D 12 volt starter for it.
 
You must log in or register to reply here.

Similar threads

T
4020 slow start
Replies
4
Views
221
Tx Jim
Tx Jim
D
Farmall 826 diesel starter/electrical issues
Replies
12
Views
384
caterpillar guy
C
J
4020 PTO Countershaft idler pin snapped
Replies
14
Views
495
tim s
T
M
51 A will not crank
Replies
18
Views
540
Mike(NEOhio)
M
2
ring gear
Replies
6
Views
437
2 Fingers
2
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top