Interesting VR failure

[Bryan Cotton]

The one I found was on ebay under the John Deere name:

https://www.ebay.com/itm/354602415740

Buy a genuine JD or Yanmar regulator made in Japan (not China) as these work well. I've bought cheaper and was disappointed ...

Dale
3.0 Corvair/Tailwheel

So I bought the regulator at the eBay link. I've installed it. It was a bolt-in job as the mount spacing was the same as my original transpo regulator. I made some 3/16" aluminum spacers to keep it off the firewall. All the wires mated right up - the regulator has male spade connectors like the other regulators. I did have to add a wire to mate to the yellow wire.

John Deere regulator installed.png (525.72 KiB) Viewed 7879 times

So far I have one ground run. At 3000 RPM, I am getting 14.5V with all loads off, and then all loads on. Looks promising.

Thanks Dale!

[Bryan Cotton]

I now have 30 hours on my John Deere VR. It is awesome! Gets up to 14.5-14.7 quickly in cruise.

[daleandee]

I now have 30 hours on my John Deere VR. It is awesome! Gets up to 14.5-14.7 quickly in cruise.

Glad to hear it's working well for you. Mine will generally run at 14.7-14.8 (MGL panel instrument reads slightly higher than a dedicated meter). Odyssey says my battery is really happy at that rate. 8~)

[pilotyoung]

Bryan,

Could you post what the different colored wires are for. I am guessing that the two blue ones go to the alternator, I know black is ground. And I am guessing that the red one being bigger goes to the battery. But what are the yellow and green? And if my guesses are wrong, please tell me.

Thanks.

[daleandee]

Bryan,

Could you post what the different colored wires are for. I am guessing that the two blue ones go to the alternator, I know black is ground. And I am guessing that the red one being bigger goes to the battery. But what are the yellow and green? And if my guesses are wrong, please tell me.

Thanks.

Answered earlier in thread: viewtopic.php?f=6&t=7412#p55978

If you go back and read this thread there are a lot of answers to the questions you will have.

Best,

Dale
3.0 Corvair/Tailwheel

[Bryan Cotton]

There is another good VR thread out there too. Here is where I added cooling to my JD VR.
viewtopic.php?f=6&t=5977&p=56207#p56142