[mrlaser]

This is a f/u to my ongoing struggle with the Borg Warner OD. As suggested in the citation pictured in one of my previous posts from the BW manual, the following steps were taken because overdrive would not engage:

With the OD t-handle pulled fully out, I rotated the driveshaft forward 360 degrees. I then loosened the cap screws holding the solenoid and withdrew it as far as possible. I held the solenoid in this position with a spacer and then rotated the driveshaft forward another 1/8 of a turn. I then re tightened the cap screws. When I later road tested the car, I was disappointed that the OD still would not engage. Obviously, I am concerned that when the unit was rebuilt something may not have been done correctly. On the other hand, as I mentioned previously the transmission and OD unit were initially filled with SYNTHETIC Gl-4 lubricant. This was switched, after about 70 miles, to Gl-1 after reading the following statement:

" And most important of all DO NOT use synthetic gear oil. It is too slippery and the sun gear will not engage. You will have to disassemble the transmission and get all of the synthetic residue off of the internal parts. That is not a fun task!"

I am wondering whether this may be a possible cause of the OD not engaging. While Synthetic Gl-4 may not cause yellow metal corrosion in the main transmission, it may lead to the OD malfunction.

Any thoughts or personal experience would be greatly appreciated.