1958 MF 65 Gas Electrical

Maryland Massey 65 · Dec 4, 2020

Hi Folks,
I've finally received all of the parts to convert my MF 65 to an alternator... I am probably over thinking this but I cannot get the wiring correct in my mind. This is a single wire alt. am I able to totally eliminate he voltage Regulator? I have spent hours looking at wiring diagrams and still cannot get it straight. 2nd question with regards to the ammeter does it matter which side the terminals are on? it is not marked + or - only on the face of the meter. A simplistic diagram would help...Thank you all you've been great.

shaeff · Dec 4, 2020

(quoted from post at 10:51:35 12/04/20) Hi Folks,
I've finally received all of the parts to convert my MF 65 to an alternator... I am probably over thinking this but I cannot get the wiring correct in my mind. This is a single wire alt. am I able to totally eliminate he voltage Regulator? I have spent hours looking at wiring diagrams and still cannot get it straight. 2nd question with regards to the ammeter does it matter which side the terminals are on? it is not marked + or - only on the face of the meter. A simplistic diagram would help...Thank you all you've been great.

That depends, did you get an internally regulated alternator? If so, you can remove the regulator.

Also, I'd ditch the ammeter in favor of a voltmeter, it's more useful.

rvirgil_KS · Dec 4, 2020

"This is a single wire alt. am I able to totally eliminate he voltage Regulator?" assuming your alternator has internal regulator you would definitely get rid of the generator regulator.

Is your tractor presently positive or negative ground? With alternator it likely must be negative ground.

Connect your BAT connection from old regulator (other end goes to ammeter) to the output of alternator. Would be good to replace this wire and one from other side of ammeter to battery connection at starter solenoid/switch with 10 gauge wire.

If your regulator has an L terminal this feeds power to the switch. You can either connect the L wire to output of alternator, or run a wire from switch to alternator side of amp meter

With switch/lights on, engine not running, does ammeter swing positive or negative. If negative leave it, if positive reverse ammeter connections.

With negative ground the negative - post on coil goes to side of distributor. Install battery negative to frame.

1958 MF 65 Gas Electrical

Maryland Massey 65

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shaeff

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rvirgil_KS

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