Cascade Crew

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

motor just went put I believe. So if anybody has one near me, let me know. Would like to fix tonight

Twilightoptics · Posted: Sat Jul 28, 2012 7:37 am Post subject:

Never seen a motor go. Switches all the time.

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Switxh is good. I don't know what's up with motor. It worked awhile later. I am going to trace wires and see if I have a short.

iansane · Posted: Sat Jul 28, 2012 9:45 am Post subject:

I've replaced both my motors before.

Twilightoptics · Posted: Sat Jul 28, 2012 10:34 am Post subject:

That's because they're always in the DOWN position. :O)

aaron_sK · Posted: Sat Jul 28, 2012 10:51 am Post subject:

I am dubious of a short. That would blow a fuse and not work again. I think you have a burnt out contact in the switch or possibly in the motor which is causing intermittent failure.

GM wiring was crap in general till the late '90's, but specifically their window wiring was downright retarded. All the wire is way undersized and the full motor load runs through the undersized switch. This resistance ups the amperage and can burn out the motor or the switch.

iansane · Posted: Sat Jul 28, 2012 12:01 pm Post subject:

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Must be motor then, because I swapped the switches and no change. It has done this before but it looked like it was going to rain last night, so I became concerned. The motors look cheap enough, and I have read where people have upgraded the wiring to improve speeds.

aaron_sK · Posted: Sat Jul 28, 2012 1:29 pm Post subject:

The wiring is only one aspect of it. You need to get the motors on relays, and to do that is tricky because they are two-wire motors. You use five-wire relays and you hook them up so they ground out when they're off. Once you get it figured out they work well, though.

The motor swap is also a PITA. You drill out the factory rivets and remount it with bolts and nylockers. Helps to have skinny arms. Wink

RSFreak · Posted: Sun Aug 26, 2012 9:44 pm Post subject:

I've got a power motor in the door we swapped on the Berli, that is if Aaron hasn't already hauled the door off to the scrapper! Wink