Repairing Borg Warner r10 overdrive governor

[jcramsey]

Anybody ever repair a governor on a Borg Warner overdrive? I just picked up one and someone busted the cap off the governor at some point. Everything works and the centrifugal weights push the shaft up when the gear is rotated...just wondering if there's any way to fix a cap with a contact in it or if it's more complicated than what I'm imagining.

[TxCajun]

The "switch" in the cap only provides ground to the solenoid so you could probably rig up some sort of cap with a switch. However, the switch actuation force in the original cap design is pretty low, and is also adjusted to actuate at around 28 to 30 miles per hour. Getting that right might be tough to do.

I've read that some people bypass or don't use the governor, and just use a switch to actuate the overdrive solenoid. However, if you don't use the governor, you risk actuating the overdrive at too low a speed, or worse yet, actuate it with the transmission in reverse which can be mechanically catastrophic.

[slorio]

I went through the same thing with mine several years ago when ups was kind enough to break the bakelite cover. I bought a new one from eBay with the cast iron body and steel cover and had a machine shop rethread it to match the original thread. Has been working untouched ever since.

Here is the type I used:
https://www.ebay.com/itm/253851227695

[jcramsey]

Good information. Thanks guys! I've got a guy that supposedly is going to buy the trans...I've been holding it for him for a while though!