104 Voltage Reg

BillyF · #1 02-18-2011, 09:10 PM

I just replaced the VR on the 104, and have a small problem. From the top down, the terminals read F-GEN-BAT on the old on, and the new one it's F-BAT-L. So not paying atention, i hooked up the wires in the same positions they were in, meaning the battery wire went to the L and the generator wire went to the battery. Got it hooked up and reconnected the battery and the engine started to turn over. Then i noticed the mistake, so i switched the two wires, and hooked the battery back up and the engine starts to turn over again. All along the key is not in the IGN. So polarizing the bat and gen was impossible . Is the new VR no good now?....Anything else i can try? thanks-Billy

B-Brush · #2 02-18-2011, 09:33 PM

Had something similar happen to mine and the points stuck in the VR took the cover off the VR and unstuck the points and it was fine dont know if this will help i would make sure battery is disconnected first hope this helps

BillyF · #3 02-19-2011, 11:03 AM

I think i got it. I took apart the old VR and compared it to the new. I ended up moving the wire going to the L, which is my generator wire, to a terminal on the back of the VR, which i thought was a ground. It's all working good now, i think. I started it up and gauge in the dash was in the positive. I put a volt meter to the battery and at idle it's
14.03 volts, and full throttle it's 14.45 volts. Sound about right? Any other ways to check and make sure the VR and the S/G is working right?, thanks

R Bedell · #4 02-19-2011, 03:41 PM

Insulate and do NOT use the "L" terminal.

rmunro · #5 02-21-2011, 08:08 AM

Quote:

Originally Posted by BillyF

I think i got it. I took apart the old VR and compared it to the new. I ended up moving the wire going to the L, which is my generator wire, to a terminal on the back of the VR, which i thought was a ground. It's all working good now, i think. I started it up and gauge in the dash was in the positive. I put a volt meter to the battery and at idle it's
14.03 volts, and full throttle it's 14.45 volts. Sound about right? Any other ways to check and make sure the VR and the S/G is working right?, thanks

Lucky bugger!!! I went through the same scenario. Only thing is when I finally got it hooked up right, the SG won't charge.

TommyK · #6 03-09-2011, 08:58 PM

Roland, what do I do with the ground wire? I have the same replacement VR BillyF has. My original VR has a ground terminal. Thanks.

R Bedell · #7 03-10-2011, 06:44 AM

Tommy K:

What model of Cub do you have and what V/R do you have...???

TommyK · #8 03-10-2011, 08:29 AM

A 108, and the new VR is CUB CADET IH-545130-R93. I started to hook it up like
BillyF did, then I remembered reading this post, so I looked up the post and hooked the wires up correctly and insulated the L terminal. So I hooked up the Gen wire to the terminal on the back of the VR, like Billy did. I also thought that was the ground terminal. Now that the Gen wire is hooked to that, I have the ground wire loose that was hooked up to the old VR. I also have the VR schematics you've posted previously. The replacement VR i have is set up for 73/100's, as described by Billy. Can I just tape the extra ground wire?
Thanks.

R Bedell · #9 03-10-2011, 08:56 AM

Attach as per Diagram....

If there is a Ground Terminal on the underside of the V/R, attach the White Wire there.

TommyK · #10 03-10-2011, 09:49 AM

Thanks Roland. For some reason your diagram isn't showing up. Is it the V/R schematic diagram?
Here is the V/R i purchased, if you scroll down the page. http://www.psep.biz/store/cub_cadet_...ical_parts.htm
Now here is the S/G i purchased, if you scroll down. The V/R shown underneath is the same item number as the one i purchased on previous page, but it's $5 less and it looks like my original V/R, with the ground terminal on the side and the terminals on the opposite side read F-GEN-BAT. The replacement V/R reads F-BAT-L, with a terminal underneath instead of on the side. Is it possible i have the wrong V/R?