Alternator

Gibby · May 4, 2021

First off thanks for the responses on the Fluid question in a earlier post. Now I have new question. The
Lucas Alternator got fried when the wiring harness rubbed through to the power steering line. I was able to
get the lights fixed and the gauges now work. I was thinking of instead of buying a after market wiring
harness and a new lucas alternator, I was going to just go with a one wire conversion. Any recommendations?
If not where is the best place to get a good wiring harness?

J.Wondergem · May 4, 2021

You can. I had a Delco 10si and bought a $13 dollar conversion for it. I got it put in and the regulator wont hold the voltage down. So I just put a CS130 that I had laying around back on it. That's as close to a one wire that I have ever had.
Thinking back, I did have one on a highway tractor back in the late 60's. I don't remember having any problems with it.

shaeff · May 4, 2021

(quoted from post at 09:24:48 05/04/21) First off thanks for the responses on the Fluid question in a earlier post. Now I have new question. The
Lucas Alternator got fried when the wiring harness rubbed through to the power steering line. I was able to
get the lights fixed and the gauges now work. I was thinking of instead of buying a after market wiring
harness and a new lucas alternator, I was going to just go with a one wire conversion. Any recommendations?
If not where is the best place to get a good wiring harness?

I bought the Delco alternator off this site, along with the one wire conversion plug. I used whatever battery cable Autozone had at the time, maybe 2 or 4 AWG for both the positive and the ground cables. The starter spins much faster now than it ever did, well worth the upgrade. The machine also runs better than it ever did with the alt upgrade.

My generator wasn't putting much out anymore, so I was primarily running off battery power. The difference for me was night and day for that reason alone. The side benefit is that I've got power to spare for lighting, etc...

rvirgil_KS · May 5, 2021

Diagram I have for a MF 240 show it with an alternator warning lamp and not an ammeter.

If so and you get a 1 wire conversion you will lose the warning lamp function. I would get a 3 wire Delco, connect Pin #2 to output and connect alternator end of warning lamp to pin 1

Gibby · May 5, 2021

That sounds like a plan - does anything go on pin 2?

Jim.ME · May 5, 2021

(quoted from post at 15:46:56 05/05/21) That sounds like a plan - does anything go on pin 2?

As rvirgil_KS posted, "connect Pin #2 to output". In other words you just make a short jumper wire to go from the #2 spade terminal to the battery connection on the alternator.

Alternator

Gibby

Member

J.Wondergem

Well-known Member

shaeff

Member

rvirgil_KS

Well-known Member

Gibby

Member

Jim.ME

Well-known Member

Similar threads