FredR

The window lift mechanism in my passenger side door went **** up this morning. I could hear the motor whirring but the window itself was deep down in the door. Suspected the plastic wheel in the lift arm had disintegrated and sure enough it had gone south as was obvious once I got the door trim out of the way.

I am thinking some ind of fix should be possible but figured I would float this in case anyone has BTDT as is most likely the case. I have no intention of forking out US$500 or whatever for a new lift arm and if necessary will lock the window in the full up position if needs be. Ironic that I have a spare arm for the driver side and I also had a spare arm for the passenger door but I used the motor from that arm some years ago and at the moment cannot find that lift arm [I rarely throw anything away].

The runner wheel assembly looks like it is pressed into the arm so should be removable and maybe it is possible to make a replacement nylon wheel or whatever.- thoughts?

.

gbgastowers

Roger has a new wheel only kit. Has a shaft that you hit with a hammer to peen it on. Very affordable

C531XHO

Point of order Mr Chairman, you mean kaput not caput

StratfordShark

The roller and attaching bolt are available from Porsche so no need to buy complete arm. I bought them when I was refurbing window mechanism, but didn’t use it as the original wheel was fine, so I didn’t want to drill it out.

joejoe

Replacement works very well and easy to do.

FredR

Thanks for the inputs- I will check to see what Roger has up his sleeve. Getting anything from Porsche for the 928 nowadays takes at least a month - that and the mark up for the Porsche box tends to rule them out these days but that was not always the case.

For the time being I have addressed the collapsed window issue by locking it closed using a jubilee clip clamped onto the lifting bar. The motor works fine- that came from my late 90S4 spares pack a few years ago- I should have the rest of that side's lift mechanism lying around somewhere.

Tomorrow all being well I will take a look at the driver's side door that for some reason does not work- it does this from time to time and removing the litfing mechanism and cleaning everything invariably gets it working again for a couple of years. Some silicon grease may be the way to go.

ROG100

Roller - https://928srus.com/products/92853791800
Pin - https://928srus.com/products/92853791700

ramcram

Hi Fred, just found and fixed the same thing. Only difference is I'm rebuilding the door on my engine stand, much easier.
Previous owner had replaced the plastic roller with a fixed steel 'thing'.
We turned up a plastic one 'graphite/nylon' I think with a turned down SS bolt screwed ad loctited into the arm and it works a treat.
Haven't got any pics yet, sorry, my phone was flat!

FredR

Hi Mike,

Sounds as though you have done what I was originally envisaging given I reckoned that there would be no "off the shelf solutions"- fortunately I was wrong in that regard.

Given you have fabricated the splendid kit you have posted about this would mod would be a "walk in the park" for you and your many talents I suspect.

FredR

Must be my Grammar School education [with its penchant for latin that I never really understood] that subconciously drives me in that direction! Caput as I recall is Latin for head so maybe there is an etymology implying "head caved in" or whatever?

Ed Petry

I understand what you mean and agree...

Yet, my first thought was I DON'T WANT TO KNOW WHAT ROGER HAS UP HIS SLEEVE!!!!!

Happy Thanksgiving to all in the US and happy motoring to others.

Kidding, Roger. You know we love ya'

Darklands

In german it´s kaputt = broken!

C531XHO

Haha, i was a geammar school pupil too but not smart enough for Latin classes. Carpe Diem Fred, hope all is well with you

FredR

You are not alone- I failed my latin O level miserably as did 90 students out of the 92 that started out. Part of the problem was they expected us to complete the course in 3 years when it was designed for 5 years and added to that it was a new school taking on a new syllabus rather than a conventional one and we ended up doing this with no formal education in English grammer and thus our excellent latin teacher had to teach us such and that effort ultimately helped me pass my French and English Grammar O levels given the teachers for those two subjects were rather crap.

I commented at the time that to pass latin O level one should be awarded an A level and it needed a full 5 years- Tempus Fugit!