R9 Overdrive Problem

Posted by Tim Mabry On 2014/12/15 21:14:52

I have a 1939 120 with a 1940 R9 overdrive fitted to it. It worked fine for years but now when it is supposed to go into overdrive it goes into neutral. I accelerate until the light comes on, let off the gas briefly and it stops pulling/freewheels. I pulled the solenoid, key on, grounded the governor and the plunger extends. My guess is the electrics are ok and it's an internal problem. I'm sure this has been covered before so feel free to forward the post, I couldn't find one.