Ltx1040

[Scrubcadet10]

My ol cubby is giving me trouble. Fired it up to mow this afternoon, after about 25 seconds I smelled burning rubber (electrical). The 18 gauge wire that runs from the solenoid +, and goes back into the Loom was HOT. Melted at a splice/connection. I got my meter and set it to continuity, no shorts to ground. I crimped a butt connector on it, fired it up. The wire still gets hot, but not to melting or smoking point... I can hold my finger on it for about 8 seconds. I also just noticed, I can my pull key out of the ignition switch in the, in the on position, and it'll stay running. I'm wondering if I have a problem with my switch?
Running voltage is 13.7.. no other wires are getting hot
13wx90as009

 

[Scrubcadet10]

Best i can tell is it's the accessory wire. Looks like the anti afterfire solenoid pulls power from it as well

 

[StarTech]

Question. Does this wire get hot with the ignition in run and the engine not running? IF so unplug the carburetor solenoid and test again.

 

[Scrubcadet10]

Wire doesn't get hot with key on, engine off. Starts getting hot as soon as the engine fires up.

 

[Scrubcadet10]

Kind of makes me think a charging issue, voltage on the wire is 13.7 consistently. Unless it's putting out too much amperage?

 

[StarTech]

That is what I am thinking now too.

 

[Scrubcadet10]

Do you know of a testing procedure for the voltage regulator? I've been looking but i can't find one.
Cub Cadet doesn't show the charging system, but Kohler (SV590-0220) shows the usual Kohler regulator.

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Edit: I found a in depth tutorial someone put up of testing the regulator.
I went back out earlier and it seems if I immediately put the engine to full throttle, the wire heats up much quicker.

 

[Scrubcadet10]

i haven't had much time to deeply troubleshoot this scrubbycadet, just a few minutes here and there...
it seems to me if the wire was getting too hot due to a charging issue, the wires coming from the regulator would get hot too, but they don't.

 

[Scrubcadet10]

Well, got it fixed.. or something.
The wire that goes from the Solenoid + to the ignition switch is connected with a bullet connector. It melted it at that point the other day, which i redid.with a butt connector.
while troubleshooting today, i found that the heat dissipated quickly, past that connection...and the wire was completely cool throughout the loom. i replaced a 6" section of wire that goes from the solenoid + and connected to the original wire, and no more heat... the wire i replaced was an aluminum wire with a cloth(?) coating on it... appeared corrosion got into the ring terminal connector crimp as well. All is well now and ran it for 30 minutes and everything stayed as cool as a cucumber.

 

[StarTech]

I was just thinking that today about a bad crimp connection.