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The power drivers bucket seat on my ‘70 442 wouldn’t move in the horizontal direction so I pulled the seat out.
A real challenge getting it out with poor access to the rear track bolts and front seat bolts. I finally just bent the two front seat trim brackets up to access the front seat mounting bolts (the rears were easy to get to). With the seat off I could get the seat to move forward and removed the tracks.
Now I need some advice on how to remove the inner drive cable from the sheathing to clean a lube them. Both are difficult to turn. The green one is noticeably harder to spin than the black one but it seems both should spin easier than they do.
I’ve cleaned the vertical jackcsrew and horizontal gears and drive. I’ll clean the transmission and motor next. All will be lubed where appropriate.
It was suggested that I not disassemble the drive cables but to run WD 40 through them the blow out the WD 40 and lube them. In the course of using the WD 40 the black (horizontal drive cable) the nylon ends became loose enough to remove. The green (vertical) one was stubborn so I didn’t press my luck. One end of the inner cable has a crimped stop (transmission end) and the other has a circular nylon piece with a slot that slides over the cable (gear side). I saw very little lube on the cable so I cleaned it and lubed it with Mobile 28 which should be compatible with nylon.
i think the biggest issue was old grease in the transmission. Some of it was hard as a rock and other spots were like shellac. I also put a new drive belt on. Finally, I cleaned the electrical connections on the relay, wires, etc. as well as the ground location on the seat and stud. I’ll confess that I only pulled the cover on the motor, decided it looked good and put the cover back on.
I bolted the track back into the car and it worked fine.
If you disassemble the transmission keep an eye out for the two nylon washers, one on each cog as well as a metal washer used on the metal drive gear shaft where it goes into the case. Also, nylon bushings are used in the case so used nylon friendly cleaners. The photo below shows a nylon washer on the cog.