Help identify this door/window part?

[Fab64]

Hi all,

In preparation of adjusting the window frame on my '84 coupe, I was pulling the driver's door card off. As I was pulling the plastic sheet off (right around the circled area, below), this part dropped onto the ground. I don't know if it was stuck to the plastic, or where it came from. I haven't consulted the PET yet, but was hoping someone might be able to ID it. Thanks for any help.

[jimtweet]

Window regulator spring pivot

[porschedude996]

They make a repair part. And looking it up just now I about fell over on the price ($70) wtf…

https://www.pelicanparts.com/More_Info/RENDH17.htm?pn=REN-DH17&bc=c&SVSVSI=0577

[Fab64]

Originally Posted by porschedude996

They make a repair part. And looking it up just now I about fell over on the price ($70) wtf…

https://www.pelicanparts.com/More_Info/RENDH17.htm?pn=REN-DH17&bc=c&SVSVSI=0577

Yes, I was just looking at that!

I'm a bit confused, though. If the spring pivot was missing, would the window still go up and down? My window has been working fine - I just raised it before removing the door card.

The other thing is: the piece I found does not look exactly like that one that our host is selling.

[Fab64]

Just found this pic of the replacement/repair part on left, and original pivot on right. That explains why they don't look the same.




I've just confirmed that my window is still working. Thus, I can only conclude that the piece that fell onto the ground was left over from a prior owner repairing it, and not fishing out the broken piece.

[Fab64]

Originally Posted by jimtweet

Window regulator spring pivot

Thanks very much!!

[WMichelsen]

Several threads about this. Here are a couple:
https://forums.pelicanparts.com/porsche-911-technical-forum/1153558-window-regulator-pins-87-a.html
https://forums.pelicanparts.com/porsche-911-technical-forum/664473-slow-window-fix.html

[Fab64]

Originally Posted by WMichelsen

Several threads about this. Here are a couple:
https://forums.pelicanparts.com/porsche-911-technical-forum/1153558-window-regulator-pins-87-a.html
https://forums.pelicanparts.com/porsche-911-technical-forum/664473-slow-window-fix.html

Thank you WMichelsen, those links were very helpful in aiding my understanding.

Ok, after a bit more research, I learned that the window will indeed still operate even though that spring pivot may be missing. So, I decided to visually confirm whether mine was still in place or not. Of course, it was not.




Side note: I'm retracting my earlier statement about removing the regulator from the door being one of the most difficult things I've ever done. Turns out it was a piece of cake compared to inserting it back into the door, and getting it bolted to the motor - Arrrghhhhh!!!


During the removal of the screws that hold the motor to the regulator, I inadvertently removed the screw (close by) that holds the stop bracket onto the assembly. When I went to put it back on, I noticed the part it bolts to was bent. Not sure how this could happen - seems like that would take a HUGE amount of pressure to bend it. In any case, I straightened it before re-attaching the stop bracket.








Now, I just need to spend some unplanned time fabricating a couple of spring pivots (I'm assuming the other side is likely also broken). Luckily, there seems to be lots of info in this forum on how to do this.

As always, thanks for all the help!

[cky3396]

Slow Window
https://forums.pelicanparts.com/porsche-911-technical-forum/664473-slow-window-fix.html

3/4 Barrel Nut 1/4-20
https://www.homedepot.com/p/Everbilt-3-4-in-10-tpi-Zinc-Rod-Coupling-Nuts-822321/204337406

1/2, 1/4-20 Carriage Bolt
https://www.homedepot.com/p/Everbilt-1-4-in-20-x-1-in-Zinc-Plated-Carriage-Bolt-800016/204633607Z


from @WMichelsen

[A930Rocket]

My passenger window is slow on my Targa. I need to take a look at it and see if the spring post is missing. Then take a look at the motor.

[porschedude996]

I found one of these in both my ‘72 911T 40 years ago, and more recently in my ‘83 911SC. The ‘72’s didn’t want to roll up easily, it rolled up ok. When I restored the car, total tear down, I used one of these repair parts. When I found the broken piece in my ‘83, I figured since the window rolled up ok (electric) that it was from a prior repair. Now I need to bore investigate.

[porschedude996]

So what is the division of the to sizes by approximate year?

[A930Rocket]

Originally Posted by cky3396

Slow Window
https://forums.pelicanparts.com/porsche-911-technical-forum/664473-slow-window-fix.html

3/4 Barrel Nut 1/4-20
https://www.homedepot.com/p/Everbilt-3-4-in-10-tpi-Zinc-Rod-Coupling-Nuts-822321/204337406

1/2, 1/4-20 Carriage Bolt
https://www.homedepot.com/p/Everbilt-1-4-in-20-x-1-in-Zinc-Plated-Carriage-Bolt-800016/204633607Z


from @WMichelsen

I take it the coupling uses a 3/4” wrench, not a 3/4” threaded bolt. Otherwise, it seems huge.

Can somebody clarify what size hole is in the regulator?

[WMichelsen]

The 1/2" and 3/4" references are about the length of the bolts and barrel nuts.
Pictured are 1/2" bolt and 3/4" barrel nut (length). In final form, I think I cut 1/8" or 3/16" off the barrel nut to shorten it little. Not necessary, but felt better.

[A930Rocket]

What is the size of the threaded portion? 1/4”

[WMichelsen]

This is what it looked like when installed.

[WMichelsen]

Edited for better clarification:
The carriage bolt is a 1/4"-20 x 1/2" long
- That's 1/4" diameter. 20 thread-per-inch 1/2" in length. That's how it's referenced if you go to HW store.
The barrel nut is 1/4"-20 x 3/4" long
- Again 1/4"-20 to match the bolt, and 3/4" in length
That's what I had on hand, and it worked well.

You could use 3/4" long bolt and nut if you wanted to. There is enough room.
Likewise, you could use 1/2" long bolt and nut. There's enough for the spring to catch onto. But, doesn't feel as secure to me.

[A930Rocket]

Excellent. Thank you.

[Fab64]

Originally Posted by WMichelsen

You could use 3/4" long if you wanted to. There is enough room.

I cut mine down to 5/8", which is about the height of the spring.

[WMichelsen]

BTW, I understand the Rennline repair part people speak of, and that Pelican sells, is for the central pivot of the spring. The very middle axis of it.
It is not for the outer spring catch that everyone finds broken off. I don't know of a commercially available repair for what we've been discussing.