BIG JOHN has been putting a Hitachi #14231 alternator on several tractors in place of a generator under the hood.
This alternator was used on 1978-79 Nissan 620 pickup with a 2 liter engine and a 1980 Nissan 720 pickup with a 2 liter engine. At NAPA it is part #2138130. The cost of a rebuilt alternator is approximately $50 + core (And they won’t take a generator as a core).
The alternator is 4 1/2" in diameter and 7" in length and will go right on the original mountings on the tractor. Use an 8" x 3/8" bolt and some pipe and/or washers for spacers. Being Hitachi means that it is METRIC. You will need to drill out the mountings to 3/8". The tension adjusting bolt is also metric thread. The alternator is a three (3) wire set up which can be converted to one (1) wire. There are spade connections labeled S & L and a BAT post connection. The L spade is for the idiot light and can be disregarded. Use a jumper wire from the S spade to the BAT post and you are good to go.
The pulley maybe a split type that you can widen using a spacer (once again metric). You may 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. I put the washer between to parts of the pulley to make it fit the existing belt. I have installed 4 Hitachi alternators – two were split pulley and the most recent two were not. There is a built in regulator and a resister to keep the battery from feeding back to the alternator.
This is a sweet fit under the hood that he has used on H's, M's and W models, also Cubs and many others.
I add the following from my experience: Be sure to switch the polarity of the battery to Negative ground to avoid damaging the Alternator. Consequently, you need to switch the wires on the coil, if you are using a coil. Use a plastic covered connection when you connect the jumper wire from the S spade On a Farmall M, turning the bracket upside-down will allow the alternator to fit nicely inside the hood using the existing generator belt.
I have installed two Hitachi #14231 alternators on two Ms and two on F-20s without any problems.
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Today's Featured Article - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
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