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Farmall & IHC Tractors Discussion Forum
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Farmall H Starter

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Pat Connors

02-17-2004 11:58:31




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My 41 Farmall H has a terrible time starting. As if there is no juice in the battery. Battery is brand new, wires and connections are good. Last thing I can think of is the starter motor. I pulled it out yesterday. What should I do to see if the starter is my issue? Should I take it apart and look for worn pieces? help?




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J in Pa

02-17-2004 17:11:14




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 Re: Farmall H Starter in reply to Pat Connors, 02-17-2004 11:58:31  
Pat, as i remember there aresome lugs that are soldered in with wires to them. sometimes the solder get hot enough to melt. the conection might look good but in fact arent. i had this problem with my H for several years. i had it to 4 or five starter places and they said it was good. it would bench spin fine but when it was put under a load, it was a different story.
while you have it apart, check those lugs that have a wire going to them. they might not be soldered in there correctly.

good luck.
J in Pa

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Wayne Swenson

02-17-2004 14:43:09




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 Re: Farmall H Starter in reply to Pat Connors, 02-17-2004 11:58:31  
The starter armature shaft could be dragging on the pole shoes because of worn bushings at either end of the starter.
With all parts clean and the shaft lightly lubricated with a high temp grease, reassemble and try to start the engine again. I have had best luck by grounding the battery on one of the starter mounting bolts. The shortest path for electricity is the best.
You might want to look at the starter switch and clean those contact surfaces to assure a good connection. All the starter amperage must pass through that switch so it is a possible weak link in the system.

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SAm in NS

02-17-2004 12:43:42




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 Re: Farmall H Starter in reply to Pat Connors, 02-17-2004 11:58:31  
How many volts is your tractor running with? If it is 6 volt then you need the biggest battery cables that you can lay your hands on (at least 1 gauge or thicker). If they are smaller than that an otherwise excellent 6 volt will turn over like it has flat battery even if the cables are in otherwise great shape. If it's 12 volts then this probably isn't your problem. Hope this helps. SAm in NS



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Farmall Ed

02-17-2004 12:16:16




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 Re: Farmall H Starter in reply to Pat Connors, 02-17-2004 11:58:31  
I would secure the starter on the work bench and hook up jumper cables to it to see if it runs, all you should have to do after grounding the starter is touch the hot wire to the terminal. If it runs then make sure you have a good clean ground connection where the ground hooks to the tractor. ED



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Pat Connors

02-17-2004 12:27:20




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 Re: Re: Farmall H Starter in reply to Farmall Ed, 02-17-2004 12:16:16  
So, postive ground just as if it was mounted on the tractor>? Touch the hot (negative) jumper to the lead?



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Bob M

02-17-2004 12:55:07




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 Re: Re: Re: Farmall H Starter in reply to Pat Connors, 02-17-2004 12:27:20  
Pat - The starter is polarity insensitive - you can bench test it either way (positive or negative ground) and it won't care.

Note! If you bench test the starter make sure you clamp it securely in a vise or something. If it's just sitting loose on the bench and it tests good, it'll twist violently the instant you make the connection with possibly dire consequences! Also expect a fairly substantial spark when you make the final electrical connection!

Recommend however before you do a bench test, remove the dust band and peek inside at the brushes/commutator. You may find one or more brushes has worn out or broken and the commutator is burned/dirty. Cleaning the commutator and replacing the brushes may solve your problem.

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