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John Deere Tractors Discussion Forum
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46 jd G starter questions

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Junkman

05-30-2007 10:11:17




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I have searched the archives & not came up with much. The hot post on the starter is at least half burnt off from years of turning over the high domes. Also a couple of brushes have burned off crooked, and all could use replacing. Now the starter just won"t get it done anymore & i need to do a rebuild/replace. Is the post hard to replace? I assume i should replace the bushings at the same time as the brushes? Any tips on tackeling the job or where to go to get parts would be appreciated. Are the parts very expensive? Is this a common brush? Also were there 8 and 6 brush G starters? Does the 8 have more umph? The cheap i&t manual doesn"t show anything on starter, is there a better manual? Thanks again

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John VB

06-22-2007 05:12:37




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 Re: 46 jd G starter questions in reply to Junkman, 05-30-2007 10:11:17  
Heh G/MAN,

What are some places in Nebraska that will work on starters? I'm out in Hastings. I have a B starter that is really tired. Thanks.



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buickanddeere

05-31-2007 09:55:54




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 Re: 46 jd G starter questions in reply to Junkman, 05-30-2007 10:11:17  
With the proper starter nose and pinion gear. You can bolt on as large a Delco starter. As there is physical room for the motor end. Delco made some serious starters such as some of the MT37's, MT40, MT41,MT42 and the mighty MT50. There are even 12,24, 32,48 and 64 volt models. The 37MT,38MT,39MT models all run about 6KW. The 42MT is 7.5KW and the 50MT 8.5KW. These power ratings are for 12V units. The gear eduction units do make a interesting sound gear whine sound when cranking.

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G/MAN

06-04-2007 07:28:04




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 Re: 46 jd G starter questions in reply to buickanddeere, 05-31-2007 09:55:54  
And they're also probably less than half the weight, and are easily as durable if not more durable than any Delco full-size direct-drive starter. I know of one failing in the 6+ years I've been here, and we have hundreds of 7000 and 8000-series tractors as well as a bunch of other machines with them running around here.



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Randy G.

05-30-2007 20:47:26




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 Re: 46 jd G starter questions in reply to Junkman, 05-30-2007 10:11:17  
Junkman, I can get most any part you need for the starter cheaper than NAPA or others. I"ve rebuilt several G starters and may have a rebuilt one currently. I can get parts wholesale. Email me if interested. Randy G.



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Glen_in_TX

05-30-2007 11:40:00




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 Re: 46 jd G starter questions in reply to Junkman, 05-30-2007 10:11:17  
The JD electrical service manual G Man is mentioning is the SM2029. Unfortunately the later copies of SM2029 do not cover complete testing and rebuilding of all starters and generators used on 2 cylinders but does cover magnetos, wiring diagrams and what unit was used on which tractor or engine and some test specs. Maybe the earlier dealer copies covered more? For on the tractor testing or complete rebuild of starters and generators you need the SM2000 Tractors & General service manual and it also covers some but not all service on magnetos and carburetors used on 2 cylinders. The SM2000 won't have wiring diagrams though. Why didn't they put it all in one manual? The SM2029 only shows G13000 and up using the Delco 1108919 starter but parts catalog or others may know of something else. JD parts may or may not have that one still in their rebuilder program? Probably not. Or do one of the 8000 series starters fit the G also? Most any electrical shop or HD truck shop will have OEM Delco or quality aftermarket parts to rebuild your starter properly and be able to test the armature and field coils and turn the armature. You can clean it and patch yourself too but a shop will have acess to undersize bushings and reamers to get a good fit if armature shaft ends are worn too. For JD manuals 1-800-522-7448.

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G/MAN

05-30-2007 16:21:05




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 Re: 46 jd G starter questions in reply to Glen_in_TX, 05-30-2007 11:40:00  
Most any later JD starter will fit and work - Delco, ND, etc. And yes, even the gear-drive units used on several of the newer tractors will also, but none of the above are cheap. The above options will require the installation of a starter switch of some sort and some additional wiring, of course, as the factory "G" starter is foot-operated and mechanically engaged. And yes, an automotive electrical shop should be able to do the job with ease, but I'd say good luck on getting a general repair automotive or truck shop to do it, at least most of them. Far too easy these days to remove and replace with rebuilt components off the shelf, and if anyone in those shops even knows what an armature growler is, it'll probably have an inch of dust on it or be stored away somewhere. I started at tech school in '92 and we did all that sort of thing in addition to basic engine machine work like grinding valves, reaming guides and the like, and I'm glad I learned, but even then it was known that the days of component rebuild at the shop level were numbered.

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Glen_in_TX

05-31-2007 12:21:11




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 Re: 46 jd G starter questions in reply to G/MAN, 05-30-2007 16:21:05  
Yeah funny how the dealers all went that way for many years deciding to train some at dealer for specialty jobs and then got away from it again using larger rebuilders to supply for their parts system. With bigger diesels later it got to where none of the starter parts for example would interchange with those for automotive or trucks anyway so many having to stock too many special parts too. I've got way too many of those kind of parts around here yet.

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G/MAN

05-31-2007 13:26:26




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 Re: 46 jd G starter questions in reply to Glen_in_TX, 05-31-2007 12:21:11  
Basically you can't afford to do component rebuild at the shop level anymore at current per-hour labor rates. Also fuel system work gets farmed out these days because of emissions regs and warranty concerns from the fuel system component manufacturers, so it all gets sent to certified diesel shops. When you get into the newer injection pumps, there's very little that even the Deere dealers can order to service them, let alone be expected to work on them. Pretty much any part that isn't bolted to the outside of a pump we can't even get through Deere.

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G/MAN

05-30-2007 10:56:33




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 Re: 46 jd G starter questions in reply to Junkman, 05-30-2007 10:11:17  
Deere put out a special service manual devoted completely to two-cylinder electrical systems and components, including full repair, rebuilt and service specs for starters, generators, magnetos, etc. It's pretty much a gotta-have for working on the two-banger electrics - it has full schematics for each model, etc. Our shop copy is MIA at the moment, but I'll look for it and repost later with the manual number. It should still be available through Deere Service Publications. A General Motors 1.2 Manual should also have all the specs, as well. Pretty much any competent automotive electrical-component repair shop should have the info and should be able to return that starter to like-new operation, although it may not be cheap. A proper rebuild should entail new bushings, testing the armature and field coils, replacing any damage components, turning and undercutting the commutator, etc. I know of a few good shops here in Nebraska off the top of my head, but you might want to go somewhere closer to wherever home is.

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