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9N Altenator Bracket

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Rob Johnson

08-12-2001 06:49:47

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I have a one wire altenator and having a heck of a time fabricating a bracket for the thing. Any suggestions would be great.Also, does anyone know how to test a resistor to make sure its rated at no mo than 11volts?

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Mountainman

08-12-2001 13:00:00

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Re: 9N Altenator Bracket in reply to Rob Johnson, 08-12-2001 06:49:47

Like smokie, I used a store bought lower bracket and made my own upper bracket from flat stock. I used a bolt behind the distributor that holds the front cover to attach the upper bracket. Steven's tractor sells a wide pulley for your alternator for about $30.

I recommend adding two wires and a diode or idiot light to make your "one wire" alternator charge at the lower rpm at which an N engine runs. Check the archives and/or post back to get more info on how to wire the alternator.

N � joy.

Mountainman (CA)

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CDA

08-12-2001 09:19:24

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Re: 9N Altenator Bracket in reply to Rob Johnson, 08-12-2001 06:49:47

Claus is bang on a far as the resistor goes. If you still have troubles mention what you want it to do and there will be plenty of educated suggestions I'm sure. I searched our local wreckers and couldn't find a bracket that would readily work on my '49 8N. I took one that had the adjusting groove cut in it and some 1/8" X 1" flat steel. I took tracings of them out of bristol board. Using the same attachment point as mentioned in the other posts, arranged the two pieces until they would do the job and fastened them together. I laid my grooved bracket and flat steel on top of my pattern until they matched then cut and welded them together. I painted it up and you would swear it came from Walmart.

Just an idea and you can never have enough of those.

Good Luck!

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ave Smith How I did it

08-12-2001 07:41:13

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Re: 9N Altenator Bracket in reply to Rob Johnson, 08-12-2001 06:49:47

I made this bracket out of 1"x1/8" flat stock. It is fastened to the plate on the back of the water pump. The water pump has a nut fastened to the back plate. Flip the plate over and fasten the bracket there. I did this at someone elses sugestion here on the forum. You might want to put a little extra weld on the nut.
PS don't comment on my messy shop. It is a work shop not a beauty parlor.
Dave <*)))><

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SMOKIE

08-12-2001 08:42:43

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Re: Re: 9N Altenator Bracket in reply to ave Smith How I did it, 08-12-2001 07:41:13

well at least your shop has walls and a floor(GRIN) i also used the backin plate turned around real handy that it is like that i used a store bout bottum bracket and the top ajustin bracket came off an old ford at the junk yard.
goodluck

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smokie

08-12-2001 08:48:43

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Re: Re: Re: 9N Altenator Bracket in reply to SMOKIE, 08-12-2001 08:42:43

oh ya the pully can also be a problum the oe belt is fater the the on on your alt. i used an old on off another genaratar that was layin around.

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Claus

08-12-2001 07:39:53

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Re: 9N Altenator Bracket in reply to Rob Johnson, 08-12-2001 06:49:47

Alternator brackets can be had from one of the tractor suppliers. It does not pay to make your own, unless you are handy with metal work and have the tools. Resistors are not rated in volts. Resistors are rated in ohms and maximum wattage. If you want to use a resistor for dropping voltage, you need to know what current rating of the load. Once the current is known, you would use the formula E = I*R, in other words the if I have a device that draws 1 amp at 6 volts and I want to use this device on 12 volts, then I would need a resistor that drops 6 volts at a current of 1 amp. To figure the resistance the formula would be R = E/I So the resistance would be 6/1 = 6. The wattage would be 6 (I square R) One roughly doubles that for added margine... 10 watts would be ok..
'Sup wit dat'
Happy Motoring
Claus

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