Ray Allen

New User
Does anyone know of a techometer that will fit on a TO35 with a 12 volt alternator? I have checked several sites and all I find operate with a cable. I bought a tractor a few months ago that needs a working techometer. Any help will be appreciated.

Ray Allen
 
(quoted from post at 21:53:29 03/18/15) Does anyone know of a techometer that will fit on a TO35 with a 12 volt alternator? I have checked several sites and all I find operate with a cable. I bought a tractor a few months ago that needs a working techometer. Any help will be appreciated.

Ray Allen

Unless you know a person who loves challenges and can convert an alternator drive to handle a tractormeter, you are probably going to have to rely on an electronic tachometer. There are some on fleabay for about $20.
 
There are some tach drive alternators on Ebay. One is the old style external regulator, the other appears to be a one wire set up. Search "alternator with tach drive", you'll see them.

That is going to be your best solution, especially if you have a factory proofmeter.

If you go with an electric tach, best get a marine application. It will be more likely to be shock/water resistant than an automotive.
 
I just took my TO35 generator in to a rebuilding shop yesterday and had a nice discussion with the guy there. Told him I wanted to keep the generator because of the tach drive. He said there are alternators with tach drives. I said "what about getting the speed right?" He said "put the pulley from your generator on the alternator".
I didn't pursue it as the generator will do me, but this might work for you.
 
Late MF 175/180, and AC 190XT/200 tractors had alternators with the tach gearbox, they do use a separate regulator though. I put one on my 85 diesel when the generator died. The generator pulley fits fine so the tach speed is the same as before.
 

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