Re: 1940 overdrive

Posted by todd landis On 2008/10/26 16:32:14

Well for the past two months I have had very limited time to play with the overdrive. But, now mostly have it fixed. Let me give me some info. in case it helps someone else. I kept going round and round with this because, there were three problems that needed sorting out. And with just a few minutes every so often I couldn't get it sorted out till just a few days ago. Turns out that the solenoid had a bad contact to turn the light on. The blocking ring had gotten a bit out of alignment, and the solenoid adapter plate had gotten bent.
So what you need to know about the blocking ring is that it should be aligned according to your borg-warner service sheets. But it doesn't quite work the way they say, it takes one person with the rear wheels off the ground, while the other one has his finger (and or home made rounded end rod) in the hole. While one person is turning the wheel forwards and backwards, and you are under moving the lock out lever back and forth for about ten minutes you will all of a sudden feel that the pawl will go in about a 1/2 inch more than it had before. Now with your home made rounded end rod carefully pull the pawl out, making sure not to turn any wheel or the drive shaft, because it may get out of alignment again. Which it did, and then had to align all over again. Bent the plate as flat as I could. And fixed the contact. Now it is working about 90% of the time. Now, occasionally while driving at high speed the red light may come on, and once it came out of overdrive. So may still be the slightly bent adapter plate, governor, relay, or possible the solenoid is a bit weak. But, I don't think the overdrive needs rebuilding. So anybody that can give any guidance from here would be appreciated. And does anyone have an extra adapter plate for sale. Thanks