149 voltage regulators?

[149owner]

From what I have seen and heard there are three different v/r setups for the 149 and my question is, is there a certain way the the voltage regulators are predetermined from factory or is it randomly generated. The voltage regulator has stopped my build on my 149 for a year, and it can't be the generator cause that was rebuilt right before I got the tractor. I can't rely on the regulator cause moly Dad threw the original away.

[R Bedell]

First, welcome to OCC.....

From what I have seen and heard there are three different v/r setups for the 149

You were badly misinformed. The 149 rolled out of the Factory with the one and only IH-545130-R91 Voltage Regulator. Now that V/R has been superseded twice, and now is IH-545130-R93.

See: http://www.onlycubcadets.net/forum/showthread.php?t=2

[olds45512]

Since you mention that it can't be the s/g I'm guessing you're having a charging issue?

[149owner]

Originally Posted by olds45512

Since you mention that it can't be the s/g I'm guessing you're having a charging issue?

Correct, the regulator would be on and off with charging. It would never fully work but go in and out between charging and no charge what so ever.

[olds45512]

Have you checked your wiring to make sure you have good connection's and a good ground? Seems a little unusual that it works intermittently.

[dodge trucker]

Just because it was"just" rebuilt, don't mean that it "can't" be bad, sounds like a bad connection inside the housing. There has been a lot of talk here about the stud twisting off internally. Or a bad insulator on the stud.

[Gompers]

Is this an original regulator? Or is it a "new" one? The ones you pick up on eBay/amazon/etc are wired differently than the original ones. (the "gen" terminal is on the backside of them).

If you have a multimeter, you should have 12v on the "bat" terminal with the engine off. When running at high idle, the "gen" and "bat" terminals should probably both show the same voltage (around 13.5ish volts). If "gen" is at 13.5 and "bat" is at 12something, you've got a bad v/r (or, more likely, need to clean the contacts inside it).

If the generator is putting out MORE than 13.5 volts, the v/r is not regulating the s/g voltage, and you've got either a wiring issue or a bad v/r.

I'd be very sure that everything is properly (and securely) grounded and make doubly sure that the v/r is wired properly. What I do when you can't figure out the wire color is measure the voltage with the engine off to figure out which wire is the "bat" one, label that. Then disconnect the battery, disconnect the field wire from the s/g and test continuity until you find the proper field wire on the harness. Label that. And then the remaining wire goes to the generator (gen) (there is also ground wire, and you should test continuity of that too).

Hook it all back up and it should be ok, given that all the components are ok.

From the sound of it, my guess is that you have a bad ground or loose connection somewhere.

[149owner]

Just tried to start it up and hooked up the regulator and the multimeter said it was charging at 17.5 volts! I'm leaning towards the problem being the v/r but am still not sure.

[Gompers]

Originally Posted by 149owner

Just tried to start it up and hooked up the regulator and the multimeter said it was charging at 17.5 volts! I'm leaning towards the problem being the v/r but am still not sure.

That means that the V/R isn’t regulating. That is what will happen when you short the field lead to ground. I’d double check continuity on the field wire to the V/R, and if that’s good, crack the v/r open and check the contacts in there.

[149owner]

Regulator is no good, contacts are burnt to a crisp, where should I buy a regulator from, cub cadet sell one on their website for $115 and I don't got that kind of money where would you guys recommend getting one from.