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TO-35 starter -- rebuild or replace?

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wlhutch

10-09-2007 19:35:09




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When I tried to start my TO-35, all I got was a raucous noise and the fan moving a little now and then. I removed the starter and tried again. I see that the gear spins out to the engage position but then quickly retreats even while the switch is still in the start position. I have not studied up on the theory of operation, but this does not seem to be appropriate behavior to me. Any reason to suspect the electrical system? I do not see any rebuild kits or replacement parts on-line. Is this not a DIY job? I see I can buy a new one (probably rebuilt) on-line. Any suggestions?

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wlhutch

10-14-2007 15:10:11




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 Re: TO-35 starter -- rebuild or replace? in reply to wlhutch, 10-09-2007 19:35:09  
FYI: Turned out to be a snap ring that popped loose. Repaired and now works fine. Thanks all.



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wlhutch

10-10-2007 15:24:47




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 Re: TO-35 starter -- rebuild or replace? in reply to Jack in NB, 10-09-2007 19:35:09  

gshadel said: (quoted from post at 12:26:44 10/10/07) Your starter is pretty easy to disassemble and rebuild yourself, and this site DOES sell the starter drive. They call it a "starter drive". Bendix is actually a trade name of a company that has long made starter drives & other components, a lot of people still call the drives Bendix gear or drive because they were THE name for those parts for so long.

Anyway, the starter drive is ~$44 on this site, just saw it.

While you have the starter out, clean the commutator & brushes, a potential cause for slow turning starter. A slow starter can actually make the starter gear kick back in also, so make sure you have a good battery charge also.
If you don"t have a Ferguson shop manual for your TO, get one. It will pay for itself on this job, vs. taking your starter to a repair shop.

As for why your starter just now started acting-up, who knows, parts do wear & need service from time to time.

George


The tractor is at a weekend location, so I don't have it to disassemble. But since the starter drive has a number of springs in it any of which could have broken, I went ahead and ordered it. I have 4 manuals, three of which I bought on this site plus I&T MF Shop Manual (MF-14). None of these discuss servicing the starter. Did you have another manual in mind?

Lynn

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wlhutch

10-10-2007 04:42:32




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 Re: TO-35 starter -- rebuild or replace? in reply to wlhutch, 10-09-2007 19:35:09  
Thanks all for the help. I will try to locate a repair shop to rebuild it -- they are hard to come by in my county. Since this came on suddenly, is it possible that something broke in the Bendix as opposed to wore out?



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gshadel

10-10-2007 08:26:44




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 Re: TO-35 starter -- rebuild or replace? in reply to wlhutch, 10-10-2007 04:42:32  
Your starter is pretty easy to disassemble and rebuild yourself, and this site DOES sell the starter drive. They call it a "starter drive". Bendix is actually a trade name of a company that has long made starter drives & other components, a lot of people still call the drives Bendix gear or drive because they were THE name for those parts for so long.
Anyway, the starter drive is ~$44 on this site, just saw it.
While you have the starter out, clean the commutator & brushes, a potential cause for slow turning starter. A slow starter can actually make the starter gear kick back in also, so make sure you have a good battery charge also. If you don"t have a Ferguson shop manual for your TO, get one. It will pay for itself on this job, vs. taking your starter to a repair shop.

As for why your starter just now started acting-up, who knows, parts do wear & need service from time to time.

George

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Gerald J.

10-09-2007 20:41:08




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 Re: TO-35 starter -- rebuild or replace? in reply to wlhutch, 10-09-2007 19:35:09  
I've had good results at reasonable prices taking tractor starters to my local automotive electric shop.

A rebuilt starter may not come with the Bendix (that part that runs the gear out to engage the flywheel), so you may have to buy it separately from a factory rebuilt starter.

While you are having the starter rebuilt (probably needs brushes as well as the Bendix) I think its also a good idea to replace the bearings. That made a great deal of difference on one of mine where the armature was dragging on the pole pieces.

Gerald J.

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TonyMI

10-09-2007 21:18:04




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 Re: TO-35 starter -- rebuild or replace? in reply to Gerald J., 10-09-2007 20:41:08  

Gerald J. said: (quoted from post at 20:41:08 10/09/07) I've had good results at reasonable prices taking tractor starters to my local automotive electric shop.
A rebuilt starter may not come with the Bendix (that part that runs the gear out to engage the flywheel), so you may have to buy it separately from a factory rebuilt starter.

While you are having the starter rebuilt (probably needs brushes as well as the Bendix) I think its also a good idea to replace the bearings. That made a great deal of difference on one of mine where the armature was dragging on the pole pieces.

Gerald J.


I had good luck getting my To 35 Diesel starter (delco-remy) rebuilt. It was cheaper to retro fit my starter than to rebuild. The only thing original on my starter is the 2 bolt flange the rest of the case and guts are new and warrenteed for 3 years.

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Jerry/MT

10-09-2007 20:17:02




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 Re: TO-35 starter -- rebuild or replace? in reply to wlhutch, 10-09-2007 19:35:09  
It sounds like your starter drive may not be working correctly. The Delco starter does not use a solenoid to operate the drive gear. the drive gear runs out on a screw type drive to engage the flywheel and has a mechanism to move the drive gear away from the flywheel ONLY when the flywheel is turning faster than the starter motor armature. By your description, there is something amiss with the starter drive. You need to rebuild or replace the drive assembly not the whole starter and it is a job that can be done by an average person. You ought to get a repair manual for your tractor to tell you how to do it. Or, check the archives under "starter drive replacement".

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