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50 starter switch terminal?

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mgb

06-20-2000 16:23:54




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I recently took the switch off my starter to clean it. There is a terminal on the side of the switch for a wire to hook too. What wire goes there? Where does it come from? There was no wire on mine. I don't see a wire shown in the parts manual that hooks there. I know some of y'all know what it's for. Please give me a hint. Thanks




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ron

06-22-2000 13:56:30




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 Re: 50 starter switch terminal? in reply to mgb, 06-20-2000 16:23:54  
Clooney,
Are you absolutely certain early 50s didn't have the ignition ballast bypass? Late ones definitely did have it.



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clooney

06-22-2000 16:16:03




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 Re: Re: 50 starter switch terminal? in reply to ron , 06-22-2000 13:56:30  
Ron, all the LP's had it & I have worked on a couple of original early 50's that are still owned by the original owners that didn't have it. If you can shed any light on when it was added I would like to know. Anybody with documented information please post also. A resistor & 6 volt coil would have been added at the same time.



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Ron

06-23-2000 06:36:27




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 Re: Re: Re: 50 starter switch terminal? in reply to clooney, 06-22-2000 16:16:03  
clooney,
I'm assuming then, that the earliest 50s had 12 volt electrical systems? I haven't checked carefully, but I wonder if the parts book will give the answer to when the ballast resistor was added? Many changes can be traced by serial number as listed in the parts book.



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Mike Aylward

06-23-2000 09:31:00




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 Re: Re: Re: Re: 50 starter switch terminal? in reply to Ron, 06-23-2000 06:36:27  
Ron and clooney, my parts book says that the resistor and bypass switch were added at S/N 21480. Hope this helps. Mike



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clooney

06-25-2000 06:00:22




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 Re: Re: Re: Re: Re: 50 starter switch terminal? in reply to Mike Aylward, 06-23-2000 09:31:00  
Mike, thanks, that would put it in late 1954 for the non LP. I think all the LP's had it from the beginning.



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John T

06-20-2000 20:44:58




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 Re: 50 starter switch terminal? in reply to mgb, 06-20-2000 16:23:54  
MG, Ol Clooney there is a good man looks like hes got ya going and as far as Im concerned, I would also say if you find a bakelite ballast resistor somewhere, it would not hurt a thing to run a wire from the switch youre talking about to the - side of the coil, and then, when you're starting the tractor, the coil will momentarily see higher voltage which will improve starting. However, Im not sure which tractor switches had the ballast on the switch (I think not until the 20 series??) and which used an external block type bakelite ballast. The little terminal on the mechanical starter is hot only when the starter is engaged and serves to by pass any ballast (so coil gets full, not ballast reduced voltage) when youre cranking which tends to drag battery voltage down. Ol John T

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clooney

06-20-2000 16:51:38




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 Re: 50 starter switch terminal? in reply to mgb, 06-20-2000 16:23:54  
Mgb, it sounds like you have the AR11115R replacment switch in which case the "by-pass" terminal isn't used on the 50. It is the same S/W that is used on the 520. The 50 didn't use the "by-pass" starting system ( at least the early ones) I can't be certin about the late 50's though. If you have a real late 50 you should do some further reserch to see if they phased the "by-pass" system into some of the the late 50's. In either case if it starts good I wouldn't worry about it as it was added to the 520 to improve starting. One thing you might look for is to see if there is a resistor bolted to the back of the I.P. panel or in that area, with the wire from the ignition coil to the ignition switch runing to it, if there is then it probably had the "by-pass" system on it. If you find any further information on this subject please post it as a follow up.

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