| Hi , at the risk of stirring some stuff up , I was always unhappy with the switching arrangement 57-64(? later ? ) with our PW motors that have only one field coil in use at a time ( 1/2 the torque possible ) . This is so the same + polarity of DC can make it go ccw or cw ( the field coils are effectively wound in opposite directions reversing the magnetism ) they did that to avoid polarity reversing relays ($) at each motor or central control point , but a heavy current at the switch results , cooks the switches as we all know and marginal torque . That concept went down the drain , all cars now have reversing relays small wires to the control switch . Also the very common problem with the nylon outer gear letting go , gear cases breaking , output pinion wearing its bearing hole eggshaped etc —and water ruining motor due to the poor seal washer fit at top ,— that issue turns the brushes and bearing at bottom ( when output end is up) to a pile of rust . Can’t fix it .
-- After fixing the gear failure with aluminum bronze cnc , ( my main problem on F ) the motors are still a bit marginal on rear coupe windows especially with new un flocked rear rubber gaskets at roof rail . Too much friction , more a rubber guy issue than motor but same end point , have to leave fit looser than ideal So somewhere someone told me a later mopar PM style much smaller motor ( no field — powerful big magnet) sort of fits , sold by Dorman / Rock too . gearbox is integral with this motor , physically looks like the Jeep GC power window motor but has a pinion like ours instead of Jeep cable windlass . I do not have original app or number handy , but i ordered one . Looks like it could work , I could do reversing adapter relay , on electrical side , small PC card — but the pinion tooth spacing is slightly off . That pinion hassle discovery stopped me , but there is a path forward there , to good power windows . For instance Re - machine sector gear ? It did not look feasible to take apart the motor , to get at a pinion change , but maybe Finding out R and L etc info is important , in considering this - it always confused me — and parts numbers are not a good way as i found that some cars had a longer motor body in the rear window app to get more torque . Different numbers will interchange . Or maybe a stock service motor, some of which are covered in black undercoating and are larger too . We need a chart of position of motor / gearbox as mounted in 4 places in various 300 years , and thus determine interchange of the gearbox assembly with motor , not the whole regulator . They may be all the same gearbox / motor arrangement , in 60 at least .I never ran into any R and L issues . but not sure . Just positioned differently ? Also if anyone knows up to what years this dual field / heavy switch design was used ( i think they all had green and brown motor wires ) that might lead us to a later B body service motor that fits . maybe gearbox too . This issue is only going to get worse … jkg Sent from my iPhone On May 5, 2023, at 4:49 PM, Nick Taylor <nicksgaragesd@xxxxxxxxx> wrote:
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