Finding new generator for TO-35

CTSNic · Apr 23, 2019

I have a Ferguson TO-35. The serial number on the tractor is 146145 but I have no clue what year it is. I believe it is a 1957.

Anyways, the generator on this tractor has a model number of 1100998 and it is a 12 volt system serial is 7M19.

I have looked up and down the internet trying to find a replacement. Everything I find is close but off on the last 3 numbers. It appears there are some generic generators online that simply say 'for Ferguson TO35' but I want to make sure I get the right replacement. I believe this 1100998 has the tach on it, but that tach has not worked since I got the cable and I recently learned that the tach should have a cable attached to the back of this generator which appears the cable is long rusted off. I would be okay with no Tach as it does not work now, but I want to make sure I get the proper amp rated generator so it does not hurt anything. Any ideas? I am not interested in rebuilding this even if I found a rebuild kit due to the extensive damage to the generator.

Thanks for any future comments, I think this is my best point of help.

Tom H. · Apr 24, 2019

Have you thought about switching to an alternator? Unless you?re doing a restoration, there are single wire tach drive alternators out there a lot cheaper than finding a generator. Check out wireharnesses.com and talk to Jim. I replaced my To35 gen with the single wire and tach drive, plus new wiring from his shop.

On the Massey parts you can find an alternator with drive that uses external regulator

Richard L · Apr 24, 2019

CTSNic if that is the original serial tag you have a 1955 Ferguson TO 35 and that was originally a 6 volt when it left the factory in Detroit, Mi. The 12 volt was not put in those tractors until S/N 161250.

Steve@Advance · Apr 24, 2019

Being it is already 12v, and you don't care about the tach, you would be money and frustration ahead to convert it to an alternator.

The problem with running a generator, the regulators you get today are generic, fit all, hecho en China junk!

Going with a one wire 10SI Delco alternator will simplify everything. Just be sure to mount it properly and reuse the generator pulley so the belt fits.

Duner Wi · Apr 24, 2019

1100998 was used on 1957 TO35 and MH 50 with regulator 1118981.
1101005 was used 1958 and 59 with regulator 1118981, TO35
1100363 was used 1958 aand 1959 with regulator 1118981, TO35.
Hope this helps.

el6147 · Apr 24, 2019

How extensive is the damage?

I would like to correspond with you, my email is open.

Bob · Apr 24, 2019

(quoted from post at 23:00:34 04/23/19) I have a Ferguson TO-35. The serial number on the tractor is 146145 but I have no clue what year it is. I believe it is a 1957.

Anyways, the generator on this tractor has a model number of 1100998 and it is a 12 volt system serial is 7M19.

I have looked up and down the internet trying to find a replacement. Everything I find is close but off on the last 3 numbers. It appears there are some generic generators online that simply say 'for Ferguson TO35' but I want to make sure I get the right replacement. I believe this 1100998 has the tach on it, but that tach has not worked since I got the cable and I recently learned that the tach should have a cable attached to the back of this generator which appears the cable is long rusted off. I would be okay with no Tach as it does not work now, but I want to make sure I get the proper amp rated generator so it does not hurt anything. Any ideas? I am not interested in rebuilding this even if I found a rebuild kit due to the extensive damage to the generator.

Thanks for any future comments, I think this is my best point of help.

FWIW, "7M19" is a manufacturing date code, not an actual serial number.

7 = last digit of year (1957, apparently)
M = December
19 = 19th day of the month

CTSNic · Apr 25, 2019

As far as I know it was ran without oil and sat out so it was rusted on exterior and probably interior. I was able to get things going by using WD-40 but between the broken tach wire and the rust I figured it was not worth salvaging. To make matters worse when it does run it runs for about ten minutes before it's too hot and then it smokes. I have very sparingly used the tractor with it in this condition due to it being the only tool for tilling. I oil it regularly but it definitely needs new bearings and not sure what else.

CTSNic · Apr 25, 2019

Is this as simple as swapping the pulley and mounting it without any adapters? I'm not familiar with the process or the regulators. Just recently got this tractor.

CTSNic · Apr 25, 2019

Interesting. It's definitely a 12 volt system. I don't know why the serial number plate would be matched to anything else, so I am assuming at one point the owner converted it to 12 volt. Thank you.

Steve@Advance · Apr 25, 2019

I believe the pulley will fit without modification, maybe shuffle the spacers to get the proper clearances. If it will tighten up without stressing the fan or binding, it will work.

You can buy an alternator retro fit kit, comes with a bracket, alternator, mounting and wiring instructions.

There are 2 types of alternators, a traditional 3 wire alternator that requires some wiring modifications, or a "one wire" model that just uses one wire that connects directly to the battery or amp gauge. Both are internally regulated.

Sometimes the mount bracket doesn't fit as supplied. It may need some minor modification. It is important to get the alternator mounted straight and aligned with the pulleys for max belt life.

CTSNic · Apr 26, 2019

Doing some more digging and found this number. It looks identical to the generator I have right now. Any tips? Model/Part#: 1900332M91

CTSNic · Apr 26, 2019

Since I'd like to get this thing running as soon as possible due to spring planting, I was hoping to not run into any snags. I'm willing to pay a little extra to get the replacement part if it's available - it looks like this may be the answer. Part #: 1900332M91 I looked online and this appears to look identical to my current generator. Not sure if the pictures are accurate but it has the same location of terminals and the same metal band around that rear part of the generator that makes it longer than a lot of generators I have seen claiming to be replacements for the TO-35. I'm just not sure if it's the wise choice. An alternator would be easier to replace in the future but sounds like kind of a bit of trickery to get it perfect at the beginning which could mean delays in ordering more parts or plates. Any input? Your info has been helpful.

CTSNic · Apr 26, 2019

I'm not opposed to the idea as long as I could get it done in one parts order, meaning I don't have to test something for fit/measurement and order another part afterwards. Do you recall what exactly you had to do in terms of adapting successfully over to the alternator? I see on the store here they sell an alternator that comes with fan and pulley and also the 2 wire to 1 wire adapter, but not sure what wiring would need replaced and if a bracket is needed to mount properly.

Steve@Advance · Apr 26, 2019

The problem with replacing just the generator, it still may not charge if there is a problem with the regulator or wiring.

If you do go with the generator, be sure to polarize it before starting.

CTSNic · Apr 26, 2019

(quoted from post at 09:22:12 04/26/19) The problem with replacing just the generator, it still may not charge if there is a problem with the regulator or wiring.

If you do go with the generator, be sure to polarize it before starting.

Sorry the forums are a bit hard to keep track of which reply is to which. The voltage regulator is new and as far as I know charging was not an issue, just the fact the generator had been ran without oil and got rusted inside and is now basically shot. That and the tach cable being rusted off. I think I can still see where it entered the generator.

I'm looking into what it would take to convert to an alternator. I think I see everything except the mounting brackets.

Tom H. · Apr 26, 2019

You will need the mounting adapter, your upper arm will work fine. Swap the generator pulley to the alternator so the tach is correct. With the one wire adapter you can remove your existing regulator and wires. He single wire from alternator go to the ammeter replacing the one that was on the regulator. And done! When it starts rev it up to excite the alternator and you should see very good charge on the ammeter.

Here are pics of my TO35 alternator with tach and lower bracket

Richard L · Apr 27, 2019

When you are looking at pictures they can say this will fit a certain model. It is very possible it will fit and some will work as they should. What are you looking for? ORIGINAL or something that will be possibly better than how it left the factory? If you are looking for original then you should be looking at 6 volt generators and I do not know what that number is.

Duner Wi · Apr 27, 2019

1900332M91 is MF parts number as used by parts department.

pomester · Apr 27, 2019

I'm a little late here, but I think it's worth mentioning that a generator shop can save/refurbish/renew your existing generator. All parts are available, they'll sandblast and paint the housing, and test it with your regulator.

Alternators are fine performing units, if that's your choice, others have mentioned fussing with the mounting/alignment to get a good install - generators are original and rugged.

David

CTSNic · Apr 28, 2019

(quoted from post at 07:09:48 04/27/19) When you are looking at pictures they can say this will fit a certain model. It is very possible it will fit and some will work as they should. What are you looking for? ORIGINAL or something that will be possibly better than how it left the factory? If you are looking for original then you should be looking at 6 volt generators and I do not know what that number is.

I'm wanting to replace the existing generator with something that can slip right in, in this case, the original you speak of (6 volt) would not work, but the one matching the serial number I posted with originally on the generator itself would be perfect. It's just that no company lists that exact number so I am stuck between trying different ones or finding one that is reman'd.

CTSNic · Apr 28, 2019

(quoted from post at 07:40:49 04/27/19) 1900332M91 is MF parts number as used by parts department.

MF parts number, as in.... what I can search for and expect would be the used/rebuilt version of what I have on the tractor now? That's what I am assuming anyway and considering just buying one of them.

CTSNic · Apr 28, 2019

(quoted from post at 08:05:15 04/27/19) I'm a little late here, but I think it's worth mentioning that a generator shop can save/refurbish/renew your existing generator. All parts are available, they'll sandblast and paint the housing, and test it with your regulator.

Alternators are fine performing units, if that's your choice, others have mentioned fussing with the mounting/alignment to get a good install - generators are original and rugged.

David

Hi David, I understand. I have someone potentially interested in my existing unit so it would be easier (and faster) to buy a replacement. I'm not against the alternator idea but two things - it will definitely not look as nice if I ever get to restoring this tractor and 2.) It sounds like it needs a bracket that nobody knows for sure where I can buy it. If I had a machine shop nearby I would just have them help me but I don't (same goes for a rebuild shop for alternator/generators). So for now I am just looking for a replacement gen to this one matching the 1100998 number.

pomester · Apr 28, 2019

Alternator conversion kits are widely available, including from this site - as mentioned, they may require some fussing to get everything aligned and you'll need to be careful to get one with a tach drive, or the capacity to mount a tach drive if you want/need that feature -

a google search for your generator number turned up this listing from a company in CO -

I have a company I can recommend in Indiana that could rebuild yours or possibly might have a unit with your number if that would be closer - experience suggests you'll be paying ~$200+ for a fresh unit -
1100998 generator

John Deere D · Apr 28, 2019

Thanks for the Info....pomester

Bob...

pomester · May 1, 2019

I was reading the latest edition of 'Ferguson Furrows', the Ferguson club magazine, and there is a fellow advertising your desired generator in the classified section - professionally rebuilt, tach drive - $165 -

maybe you can access the adds online? Ferguson Enthusiasts of North America -

miner09 · May 1, 2019

fergusontractors.org/fena/ will take you to magazine then go to-- Gots n Wants.

54FergieTO30 · May 1, 2019

(quoted from post at 21:00:34 04/23/19) I have a Ferguson TO-35. The serial number on the tractor is 146145 but I have no clue what year it is. I believe it is a 1957.

Anyways, the generator on this tractor has a model number of 1100998 and it is a 12 volt system serial is 7M19.

I have looked up and down the internet trying to find a replacement. Everything I find is close but off on the last 3 numbers. It appears there are some generic generators online that simply say 'for Ferguson TO35' but I want to make sure I get the right replacement. I believe this 1100998 has the tach on it, but that tach has not worked since I got the cable and I recently learned that the tach should have a cable attached to the back of this generator which appears the cable is long rusted off. I would be okay with no Tach as it does not work now, but I want to make sure I get the proper amp rated generator so it does not hurt anything. Any ideas? I am not interested in rebuilding this even if I found a rebuild kit due to the extensive damage to the generator.

Thanks for any future comments, I think this is my best point of help.

I may have just what you are looking for. Message me at [email protected]

I have one off of a 35 with 12v that is being rebuilt. It is supposedly being shipped back to me now from the shop who did the work.

CTSNic · May 1, 2019

(quoted from post at 11:08:49 05/01/19) fergusontractors.org/fena/ will take you to magazine then go to-- Gots n Wants.

I checked that out and it just takes me to a PDF of a listing but that was for December 2018. Nothing listing a generator either. Ideas?

Finding new generator for TO-35

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