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https://forums.nicoclub.com/gary-walker2-cox-net-u148495.html
Tue Dec 08, 2009 8:10 pm
Just finished replacing the window regulator in my grandson's j30t while he's in the army learning to be a medic. Anyway, it is very likely that since the motor runs, this piece is reparable. Basically two procedures: 1)Getting the door skin off and 2) Removing the Regulator1)The skin has 3 exposed screws at the bottom, the usual plethora of plastic body clips and 2 hidden screws in the central to upper middle portion of the door both of which can be accessed by carefully lifting and removing the window/mirror control panels with a wide blade screwdriver. Careful: these plastic/bakelite parts are old and can be brittle. (Generally, these panels are held in by a built in plastic hook on one end and a metallic friction clip on the other. The escutcheon around the door handle is simply friction clipped in: Hold the handle open and slip the escutheon out. Now you can lifte the panel, snake the controls through the openings (Don't disconnect the window control panel. You'll want it connected to lower/raise the window glass and check the new reinstallation), disconnect the gas tank and trunk switches and lay the skin in the back seat.2)Disconnect electrical and Remove the Regulator with the motor. a)Position the window so you can remove the 2 screws holding the glass to the cable/motor/regulator mechanism b)Then remove 4 screws (2top/2bottom) from mechanism, turn and remove it from door.
(At this point I found a used working regulator, but if the motor runs, you very likely can remove the circular cover, observe that the hard plastic/rubber clutch has deteriorated, clean and pour in a setting plastic resin and after it hardens reinstall the whole mess after you clean the track and lubricate generously with lithium grease. Note: This fix will work because, in all likelihood, it is the track and/or the window friction which will have caused this rubber clutch to fail (it having been engineered to preserve the motor, but you likely couldn't buy just the motor anyway. In any case the odds of breaking the window are remote if you lube the edges and you have fixed your window for pennies!