How To Repair 928 Window Motors
#17
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While you can repair the motor using the info in here, it helps alot if you also clean and relube the gearbox and sliding joints. At least add some light grease (Superlube is good) to the box before you screw the armature back in.
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checkmate1996 (09-08-2021)
#20
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First, a big THANK YOU to 'no doubt' for the original posting, and for all the follow on postings. They were very helpful.
I just completed replacing the 'door stop (needed) and the window motor brushes (purely preventive maintenance, while I had the door panel off) on my '95,. I used a slight modification to the motor removal procedure described by @no doubt . After the two Torx/star bolts were removed from the motor housing to the gear transmission, I did not pull the housing case off. With the electrical connection still on the motor, (with the window being held in full up position with tape as suggested by @Mrmerlin), I turned the ignition switch to on, then 'touched' the down window switch on the console. The entire motor just 'backed' itself out of the transmission case. Then, I turned the ignition off, and just picked the motor off the mounting.and disconnected the electrical connector..
Doing this, you can then dis-assemble/repair the motor as needed on your work bench (the case is strongly attracted to the armature windings on the motor). When any needed repairs to the motor itself are completed, re-assemble it just as it was when you removed it from the door, and re-insert the screw shaft into the transmission and install the electrical connector. Now, turn the ignition switch on and with one hand holding/jiggling the motor case use the other hand to 'touch' the up switch on the console. With careful quick touches and some jiggling, the motor will be pulled completely into position on the transmission. Install the two Torx/star screws to nearly snug, then maybe touch the down and up button a time or two to be sure everything is properly located, Finally, torque those screws and you are done. I then took the tape off the window and rolled the window up and down a few times to be sure everything worked properly, Then re-installed the plastic liner on the door and re-attached the door panel. These two items should now be good for another 27 years!
I just completed replacing the 'door stop (needed) and the window motor brushes (purely preventive maintenance, while I had the door panel off) on my '95,. I used a slight modification to the motor removal procedure described by @no doubt . After the two Torx/star bolts were removed from the motor housing to the gear transmission, I did not pull the housing case off. With the electrical connection still on the motor, (with the window being held in full up position with tape as suggested by @Mrmerlin), I turned the ignition switch to on, then 'touched' the down window switch on the console. The entire motor just 'backed' itself out of the transmission case. Then, I turned the ignition off, and just picked the motor off the mounting.and disconnected the electrical connector..
Doing this, you can then dis-assemble/repair the motor as needed on your work bench (the case is strongly attracted to the armature windings on the motor). When any needed repairs to the motor itself are completed, re-assemble it just as it was when you removed it from the door, and re-insert the screw shaft into the transmission and install the electrical connector. Now, turn the ignition switch on and with one hand holding/jiggling the motor case use the other hand to 'touch' the up switch on the console. With careful quick touches and some jiggling, the motor will be pulled completely into position on the transmission. Install the two Torx/star screws to nearly snug, then maybe touch the down and up button a time or two to be sure everything is properly located, Finally, torque those screws and you are done. I then took the tape off the window and rolled the window up and down a few times to be sure everything worked properly, Then re-installed the plastic liner on the door and re-attached the door panel. These two items should now be good for another 27 years!
Last edited by Gary Knox; 06-05-2022 at 10:21 AM.