Another Slow Window Question

At each door there is a 6 pin connector with all door electricals just inside the door jam.

You might also consider adding a relay or two. Single relay uses door ground rather than going back to the switch for ground. Dual relays get +12V and ground within the door rather than going back to the switch so no current passes through the window switch...it's only function becomes relay control.

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Yep, the "two relay" fix WILL do the job. Works great. I can provide the schematic for it. Other schematics didn't seem quite right, so I figured one out myself.

 

Is this basicly how the ''window accelerators'' work?
As i have the same problem.
B.

 

Yup

 

I'm in the process of rebuilding mine, here are my findings, I'll post some pic's and videos in the next week. I removed the motors and took them apart, I cleaned all the end bushing out and and lightly sanded (600-1000 grit) the pickups (communicators) so there was better connection to the brushes. After re-assembling and re-greasing the motors I ran them over for a few minutes back and forth to set/wear in the pick-ups brushes. The motors preformed much beter and produced much more torque. I sprayed down and cleaned out the nylon pulleys to free them up. After I put the window back together and readjusting the cables on both tennsion and alignment the speed up and down improved to about 3-4 seconds.

I just took them apart again because I'm replacing the nylon pulleys with new ones which have ball bearing instead of the stock bushing type. I think this will make the system much more reliable. I may also replace the cable.

I think the problems with the window system is in several areas:
- Dry'd grease in gearbox worm gear assembly
- nylon pulleys not running in a bearing.
- cable stretching causing the system to come out of adjustment.
- burned communicators (pick-ups) causing reduced motor torque.
- Kinked/frayed cables.
- cable missaligned on drive pulley.
- body grounding/connections

I'll keep you posted...

 

that would be nice

.

 

I changed the channel felts and that made a big difference

 

where did you get the Felt from?

 

I just PM'd you.

 

Kent High Performance:

http://www.theferraricentre.com/

David

 

Can you let us know where you got the new pulleys? (and PN). thanks

 

Would appreciate a copy of your scheme...tnx

 

This is the relay fix - one of the drawings in my 308 package. The way it works is - window switches now only energize the up OR down relay. Switching only coil current, the window switches will last forever.

It requires bringing a fused +12V wire into the door. Use fuses 8 and 9 in the left block which is dedicated to the window motor. I changed from fuses to resettable circuit breakers. In addition I added a lower limit switch and my tension pulley is moveable and sprung. Window speed is well under 3 seconds.

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Paul, Thanks for the schematic!