My 1-wire alternator experience

[Trisor63]

After my alternator died on my Jinma 284 I started doing some research. I found a thread here about converting to a delco 10si or 12si. It sounded good to me so I bought 3 wire 10si. The thread discussed the differences between 3 and 1 wire. And a few people said the one wire would excite right away at idle...no problem. So to simplify the wiring I converted the 3 wire to a one wire. The install was pretty straight forward. For the record, my one wire did not excite until I hit 1800 RPM or so. Once I did it was fine at idle but did not excite until I hit 1800 RPM. So basically I think the 3 wire would be better on a tractor. I wish I would have listened to Soundguy.

Other install notes on my Jinma: I had to grind a bit on the alternator pivot since it was too tight. I am able to use the same belt. I made a mock-up bracket from a piece of straight aluminum I had laying around. I used 10 gauge wire. The 10si is 63 amp.


Picasa Web Albums - Tri - Tractor

[flusher]

After my alternator died on my Jinma 284 I started doing some research. I found a thread here about converting to a delco 10si or 12si. It sounded good to me so I bought 3 wire 10si. The thread discussed the differences between 3 and 1 wire. And a few people said the one wire would excite right away at idle...no problem. So to simplify the wiring I converted the 3 wire to a one wire. The install was pretty straight forward. For the record, my one wire did not excite until I hit 1800 RPM or so. Once I did it was fine at idle but did not excite until I hit 1800 RPM. So basically I think the 3 wire would be better on a tractor. I wish I would have listened to Soundguy.

Other install notes on my Jinma: I had to grind a bit on the alternator pivot since it was too tight. I am able to use the same belt. I made a mock-up bracket from a piece of straight aluminum I had laying around. I used 10 gauge wire. The 10si is 63 amp.




Picasa Web Albums - Tri - Tractor

That's about the rpm needed. My 1964 MF-135 diesel has a 1-wire Delco alternator that needs around 1700 rpm to excite the thing. It charges the battery which is all I ask.

[Farmwithjunk]

Take your 1-wire alternator to a GOOD auto electric shop and ask to have it set up for a lower RPM "cut out". I've got one that's a spare I use on various tractors when I'm working on a generator/alternator issue. It excites at approx. 800 rpm.

[john_bud]

I had a 1 wire that wouldn't excite until 2000 or so. Just pulled the black cap, found there was a spot for the extra wires so it's now a 3 wire exciting from idle.

jb