New Member with Seat Issue

[smithm31]

Hello all. I am new to this forum and looking foward to being a active member. I am also a member in several other forums as I have a small collection of classic cars one of which is a 64 T-Bird. I am large person and I installed a 6-way power seat base in place of the 4-way that my T-Bird came with. The 6-way is out of a 66 and everthing bolted up and connected just like the 64 seat. Wires and connections are same. Seat worked fine for awhile and then stopped moving backward. The long threaded rod turns with motor running, the seat just doesn't move. What could be wrong?

 

[tbird5866]

If the screw shaft is turning and it doesn't move, I'm guessing the solenoid is toast.
Maybe you can use the one that was in the 1964... On the other hand , it might need some lubrication.

 

[smithm31]

I still have the complete 64 base. There is 4 or 5 solenoids there. How do I tell which solenoid is bad? I also forgot to mention that the switch will give you a pretty good shock sometimes.

 

[t-bird-art]

I still have the complete 64 base. There is 4 or 5 solenoids there. How do I tell which solenoid is bad? I also forgot to mention that the switch will give you a pretty good shock sometimes.
You have 2 problems:
You have a component shorting out somewhere in the electrica system . Could be the motor, or relays, or switch or solinoids on the continuous screw.
Bench test with 12v battery wearing rubber gloves. Look and smell for smoke. Feel all electrical components for heat .

P.S. Solonoids on continuous screw very difficult to replace. Requires extracting continuous screw from seat frame.

Common problem: the cloth-covered solonoid power wires are deterioriated and short to solonoid's metal cover.