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Farmall & IHC Tractors Discussion Forum
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1949 H starter

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Ronald Jones

02-07-2005 23:01:57




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I just bought a 1949 H that needs a starter. This tractor has been converted to a 12 volt system. Can anyone tell me if a 6 volt starter will work? I have been reading this sight for months leading up to my first Farmall purchase and have learned much, Thank Ron




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captaink

02-10-2005 09:58:13




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 Re: 1949 H starter in reply to Ronald Jones, 02-07-2005 23:01:57  
I have to throw in my 2 cents. A 6-volt starter will hold up just fine. I have an M that was converted 20 years ago. It usually sits outside in the cold in winter (down to -25 F some winters). I replaced the starter once in that time, and it was my everyday loader tractor. I don’t baby the starter, nor do I abuse it, actually I think 12 volts is easier on it than a poor 6-volt system. Here’s why I think this way:

There is an equation in electricity that states: watts (electrical power) = volts (push) X amps (current flow)

For example if you have a 700 Cold Cranking Amp 6-volt battery and 100% of it goes to the starter you will get 4200 watts of electrical power. (Remember how hot your 1500 watt toaster gets) Now, to achieve 4200 watts of electrical power with 12 volts, you only need 350 amps. The lower current flow makes the 12-volt system more forgiving on poor connections etc. Your H will take a certain amount of power (watts) to turn over (depending on temperature) regardless of 6 or 12 volts, so the actual power consumption of the starter will be the same. If you follow good starting practices (10 seconds run, 1 minute rest) you won’t hurt that 6-volt starter.

The jaming mentioned in another post is not because of 12 volts, it is either a bad ring or bendix gear.

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Ronald Jones

02-10-2005 23:28:57




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 Re: 1949 H starter in reply to captaink, 02-10-2005 09:58:13  
Captaink,

That makes total sense and since I haven't found one 12-volt starter for an H anywhere, the majority of the 12-volt converts must be running 6-volt starters.

Thanks Ron



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captaink

02-11-2005 06:47:36




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 Re: 1949 H starter in reply to Ronald Jones, 02-10-2005 23:28:57  
If I were a betting man, I’d wager that the vast majority of 12 volt conversions are running the 6-volt starter. My B, C, and M are, and I had a 51 truck and a 52 pickup that I converted and left the original starters in. The only issue that I ever had was on the M (loader getting used almost daily and has fire-crater over-bores in it) the original style bendix (had a coiled spring that was made of flat steel to absorb the “run-in” shock) would work the bolts loose sometimes. I found a “heavy duty” one at a automotive part house that used a more typical clutch on it and tried that and it solved the issue. Other than that I treat them like any other starter.

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CopelandJ

02-08-2005 07:26:06




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 Re: 1949 H starter in reply to Ronald Jones, 02-07-2005 23:01:57  
Ron, I have a "51 Farmall H, and I converted it to 12 volt and kept the 6 volt starter. Works fine. However, about once or twice a year, the starter will lock up for some odd reason. I have heard of this same thing happening to others who converted to 12 volt. Possibly the extra voltage??. If that happens, all you do is loosen the two nuts that hold it on and jiggle the starter a few times and retighten the nuts, and it will then work fine again. Good luck with your H!
Jeff

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CNKS

02-08-2005 08:05:41




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 Re: 1949 H starter in reply to CopelandJ, 02-08-2005 07:26:06  
Happens with 6 volt too, the ring gear is worn.



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Ronald Jones

02-08-2005 07:55:20




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 Re: 1949 H starter in reply to CopelandJ, 02-08-2005 07:26:06  
Thanks Jeff,

I found a 6 volt starter for 90 bucks and whated to make sure it would work first. Ron



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JOSSETTE

02-08-2005 10:48:48




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 Re: 1949 H starter in reply to Ronald Jones, 02-08-2005 07:55:20  
the 12 volt is $20 more and you know what you have...be carefull with the 6 volt. baby it to death and it will last. too much cranking and to the parts store ypu will go. and yes the ring gear may get round and the solonoid tends to get hot . NO heavy cranking. any other Q's let me know.



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RustyFarmall

02-08-2005 11:38:26




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 Re: 1949 H starter in reply to JOSSETTE, 02-08-2005 10:48:48  
JOSSETTE, there is no solenoid on either a M or H, except for the supers.



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JOSSETTE

02-08-2005 12:19:56




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 Re: 1949 H starter in reply to RustyFarmall, 02-08-2005 11:38:26  
there normally is unless the 12 volt convertion is still pos ground..

i put solonoids on all 12 volt neg ground converts. easier on the the whole system.
i just assumed there was.



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MarkinColo

02-09-2005 12:45:39




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 Re: 1949 H starter in reply to JOSSETTE, 02-08-2005 12:19:56  
Jossette-I have an H also that has a 12 volt conversion: electronic ignition replacing the points and have rewired it (wiring was frayed) for a single wire Delco alternator. What do you use 12 volt starter-wise to replace the 6 volt as I did not know of anything that was a bolt on? (Starts easily here in CO even in temps below zero tho; just don't want to burn up 6 volt starter which I think is a likelihood with time)

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JOSSETTE

02-09-2005 13:25:34




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 Re: 1949 H starter in reply to MarkinColo, 02-09-2005 12:45:39  
the 6 volt will be fine if you baby it. if the tractor will not start do not keep cranking because the 6 volt will not handle the power or the amps for very long. with a volt meter, you can keep a constent check on the charging on the battery cable at the solonoid. once the voltage goes lower than 11.5 volts. the 6 volt starter will struggle and may smoke the solonoid and or the starter. if your starter has been rebuilt it will last a long time. maybe every spring take the starter out and check the ring gear for round or damaged teeth. since the starter spins a little faster it may rough-up the teeth. the only down side of a 6 volt.

good luck

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MarkinColo

02-09-2005 13:43:16




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 Re: 1949 H starter in reply to JOSSETTE, 02-09-2005 13:25:34  
Jossette- I have been running tractor for 2 years with 6 volt starter so I am aware of this. Don't mean to sound rude at all but that wasn't my question. What 12 volt starter did you use on a 1949 H that bolted to engine block? I wasn't aware of anything that bolted to the H that wasn't of the 6 volt variety. You said you use a 12 volt starter and I'd like to know what you got it off of. Thanks.

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JOSSETTE

02-09-2005 16:40:43




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 Re: 1949 H starter in reply to MarkinColo, 02-09-2005 13:43:16  
i took it to my starter and alternator genious..he took the guts out and found 12 volt guts to put back in it and a little different back brush plate. i dont think anyone else does that or knows how, but it was a specialty item 6 yrs ago. i usually rewire 300 on up because of the 3 bolt starter. maybe someone down there has done that. some people here take the 3 bolt empty case to the welding shop and have them fill the two holes and drill the other. looks all right after paint and nobody knows but the owner.

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Cshaffer

02-08-2005 05:12:56




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 Re: 1949 H starter in reply to Ronald Jones, 02-07-2005 23:01:57  
I have redone starters here, you can email me. You can use these with a 12 volt battery as long as you don't keep cracking the motor and burn out the brushes.I have hundreds of IH parts if you need anything else. 1-585-335-9274, Charlie Shaffer



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Ronald Jones

02-08-2005 07:51:44




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 Re: 1949 H starter in reply to Cshaffer, 02-08-2005 05:12:56  
I appreciate the info and I'll keep your contact information as I am sure there will be more questions and parts needed. Thanks



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JOSSETTE

02-10-2005 13:30:42




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 Re: 1949 H starter in reply to Ronald Jones, 02-08-2005 07:51:44  
the electrical man said that all he did was change the field coils an brush plate to get a 12 volt. he said anybody that rebuilds starters can do this in their sleep.

have a good one



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farmalljim10

02-08-2005 01:59:38




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 Re: 1949 H starter in reply to Ronald Jones, 02-07-2005 23:01:57  
Sure will work. It will spin it plenty fast.If its got a mag just listen for the impulse to make sure it doesent turn it to fast..As long as it clicks your all right.



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Ronald Jones

02-08-2005 02:23:18




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 Re: 1949 H starter in reply to farmalljim10, 02-08-2005 01:59:38  
Thanks Farmalljim,



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