Air-cooled Porsche 911 Power Window Regulator DIY Repair and Replacement

Air-cooled Porsche 911 Power Window Regulator DIY Repair and Replacement

Replacement of a Porsche 911 power window regulator and one way to repair some common issues.

Additional Notes:
1. This applies for all 911 coupes 1974 to 1989 (targa and cabriolet units are similar).
2. Several regulators existing during this model range but they are similar.
3. Regulators are mirrored left and right.
4. I had a defective window switch that affected regulator operation at 56:50. Make sure your window switches operate correctly before taking the regulator out.
5. Some loud hammering so headphone users beware.
6. Please take all necessary safety precautions. Not responsible for any personal injury or vehicle damage.
7. Shortcuts for convenience:

Intro: 00:00
Door Panel Disassembly: 03:02
Regulator Removal: 14:18
How It Works: 20:48
Condition Assessment: 22:08
Motor Bench Test: 24:34
Regulator Repair: 25:22
How Return Spring Works: 40:01
Regulator Re-installation: 41:43
Regulator Adjustment: 1:00:04
Test Run: 1:04:00

Amazon link to bench test power supply: https://amzn.to/2SfoLx3
Amazon link to woodworking clamp that clears door frame: https://amzn.to/3gQI6Pa

IG: https://www.instagram.com/joe_engineer/
1983 Porsche 911SC build blog: http://joe-engineer.com/

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Comments

it's me says:

Hi, great video, I have a '81sc targa. I think those stops that prevent the window going up too far must be missing or misadjusted on my car. My windows are rolled up all the way and the top edge goes above the frame of the little fixed triangular window next to it. Now neither window will come down. I believe the glass just sits on top of the little rollers on the scissor arms and gravity lets the glass down. So I believe it may just be wedged now. My mechanic suggested I just get something flat and push the glass down until it is free of whatever is binding it and sits back on the scissor arms. Since both windows started doing this at the same time (and I did a very rare thing of rolling them up at the same time) I thought it might be a fuse but the fuses all look good. I'm afraid to push down on that glass but it also makes sense enough to me. Do you think this binding is the likely culprit and that good old brute force is the next step?

Bjorn Dischington says:

Great video. Helped me a lot even though mine is a 993. Same setup. My reason for the job was that the cadmium plated rails at the bottom of the window was corroded. On passenger side it was coming apart due to the corrosion so the el. window hoist could not operate. The rail is a little bit of moisture trap with the rubber sleeve between it and the window. Anyway i found that it was a lot less fiddely to get the whole hoist mechanism installed including fixing the lower anchor rail and then slide the rail onto the sissor arms. Then i put the rubber sleve onto the bottom of the window (put a little bit of dish washer fluid on the outside of the rubber for a little bit less friction when pushing the rail on). Actually i used the electric hoist to push up, slowly and carefully to make sure the rail hit correctly at the bottom if the window. Slide right on.

KO A says:

YouTube's algorithm must be slipping. This is exactly the kind of channel I'm into! Just tore down the drivers door of my 82 SC for an identical issue. The window would go down but not up, bad switch and the spring stop that you replaced with the carriage bolt was also floating around inside my door.

Subscribed and looking forward to more of your content. THANKS!

Carston Bethers says:

Hey Joe, thanks for the video. Quick question. On my 74 carrera the window is down and won’t go back up. Got any idea on how to deal with this?

Filip Van den Eynde says:

Thanks Joe, this video helped me a lot this weekend to refurbish the window regulator. Mine had the same problem: spring retainer slot broke off and couldn't operate the window anymore without blowing a fuse. Hope to see more videos soon.

Steve Chiarchianis says:

Hi Joe, great video. Couple questions:
1. assuming my door does not have that big tweeter/speaker hole that your door has, is it going to be possible to maneuver the regulator/motor into a position so that the motor nuts can be accessed from the big speaker hole on the bottom of the door?
2. according to the Pelican Technical Article instructions, they say to roll the window down first, remove the motor from the regulator, then slide the window up and tape as you did. Your way makes more sense, as with the window up, there will be less tension on the spring. Your thoughts?

Bill Bill says:

How do you hold the window up on a convertible or targa?

1312 Prado says:

Hey Joe, Great video and I like the detail… helps me to slow down! haha… Get the rest of the internal door fixed too! I am having similar problems with my '87 Targa; alarm, door locks. Too many years on this Targa and she needs some love.

Michael DSILVA says:

Is grease not required? Or did I miss that part?

Cindy Cote says:

Great video. Thanks. (Bob from Houston using wife’s account. Lol.)

patrick Kolodziejek says:

Nice video but removing frame makes it much easier, right order is frame out glass out than Window regulator out, sometimes it is better to do one more step it still would be faster to do, thanks

Thomas Lazansky says:

Hi Joe, Love your videos and blogs! I couldn't get my SC to where it is now without them. Would love to see some suspension "How To" vids! Shocks and struts and tie rods and bump steer are on my list! Thanks again and keep em' comming!

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