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Farmall & IHC Tractors Discussion Board |
Re: H 12v alternator?
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Posted by BIG JOHN on February 13, 2004 at 19:04:36 from (205.188.209.82):
In Reply to: H 12v alternator? posted by Ken on February 13, 2004 at 18:16:58:
It will fit but it is a very tight fit. I have found that using a Hitachi #14231 alternator from a 1980 Nissan 720 pickup is much easier to get into this tight fit. NAPA has them part #2138130 cost $49.49 + core. This alternator is 4 1/2" in Dia. and 7" in length and will go right on the orginal mountings on the tractor. Use an 8" x 3/8" bolt and some pipe for spacers. Being Hitachi means that it is METRIC You will need to drilll out the mountings to 3/8". The tension adjusting bolt is also metric thread. This alternator is a three (3) wire set up which can be easily converted to one (1)wire. There are spade conections labled S & L and a BAT conection. The L spade is for the idot light and can be disregarded. Use a jumper wire from the S spade to the BAT post and your are good to go. The pully is a split type that you can widen using a spacer (once again METRIC). You will need to use a disc type lock washer and some locktite because there won't be room to reuse the split lock washer that comes with it. There is a built in regualtor and a resister to keep the battery from feeting back to the alternator. If you want the alternotor to start charging without having to accelerate the engine you can install a resistor or idot light to feed the L spade. This is a sweet fit under the hood of H's, M's, W's also Cubs and many others. GOOD LUCK
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