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  Topic: Strange starting/ cranking problem with my 931 (series 2).
Dutch924-racer

Replies: 5
Views: 7730

PostForum: 931 Tech.   Posted: Mon Sep 01, 2025 7:29 pm   Subject: Strange starting/ cranking problem with my 931 (series 2).
Unfortunately the problem is back/ still there, any other hints?
  Topic: Ignition lock bearing play
Dutch924-racer

Replies: 3
Views: 6316

PostForum: General Discussions   Posted: Sat Jul 19, 2025 3:59 pm   Subject: Ignition lock bearing play
Hi,

Replacing the ignition switch, I noticed a lot of play on the steering wheel bearing that is inside the ingtion lock holder.

I have a 1979 924, with the steel switches for wiper/blinker.
...
  Topic: Strange starting/ cranking problem with my 931 (series 2).
Dutch924-racer

Replies: 5
Views: 7730

PostForum: 931 Tech.   Posted: Sat Jul 19, 2025 3:52 pm   Subject: Strange starting/ cranking problem with my 931 (series 2).
Hi I replaced the switch and it seems to start directly again, many thanks!
  Topic: Strange starting/ cranking problem with my 931 (series 2).
Dutch924-racer

Replies: 5
Views: 7730

PostForum: 931 Tech.   Posted: Sat Jul 05, 2025 4:58 pm   Subject: Strange starting/ cranking problem with my 931 (series 2).
I have a strange starting problem with my 931 (series 2).

Over the last year I had problems with starting/ cranking the engine.

I had to turn the ignition key in start mode and keep it like tha ...
  Topic: Looking for measurement of back seat bracket 924
Dutch924-racer

Replies: 6
Views: 3595

PostForum: General Discussions   Posted: Fri Apr 12, 2024 3:10 pm   Subject: Looking for measurement of back seat bracket 924
Anyone one, who coupd help?

Thanks
  Topic: Looking for measurement of back seat bracket 924
Dutch924-racer

Replies: 6
Views: 3595

PostForum: General Discussions   Posted: Mon Mar 25, 2024 4:19 am   Subject: Looking for measurement of back seat bracket 924
They removed this brackets for an roll cage in the past, I want to make/ imitate them. Can anybody measure it for me?

Thanks

https://ibb.co/CP2yRRC

https://i.ibb.co/CP2yRRC/Screenshot-2024020 ...
  Topic: Clutch pedal not returning all the way
Dutch924-racer

Replies: 10
Views: 15828

PostForum: 931 Tech.   Posted: Fri Aug 05, 2022 1:35 am   Subject: Clutch pedal not returning all the way
Does the clutch slip when you drive and rev it to the red line?
  Topic: Clutch 931 slipping at high revs
Dutch924-racer

Replies: 17
Views: 41732

PostForum: 931 Tech.   Posted: Sun Apr 25, 2021 3:58 am   Subject: Clutch 931 slipping at high revs
Important to say, that the problem started after about 500 miles.
  Topic: Clutch 931 slipping at high revs
Dutch924-racer

Replies: 17
Views: 41732

PostForum: 931 Tech.   Posted: Sat Apr 24, 2021 10:37 pm   Subject: Clutch 931 slipping at high revs
Pressure plates in PET:

M31.03 - 931 116 001 03
M31.50 - 915 116 001 27 (I use a 915 alu version)
M31.01/02./03/04 - 931 116 001 02

Flywheel for S2:

M31.0 ...
  Topic: Clutch 931 slipping at high revs
Dutch924-racer

Replies: 17
Views: 41732

PostForum: 931 Tech.   Posted: Fri Apr 23, 2021 2:42 am   Subject: Clutch 931 slipping at high revs
There are two types of S2 flywheels, I have both, one is suitable for the 911 pressure, the other wont fit because the 911 pressure plate has a raised disc. That other flywheel uses a different clutc ...
  Topic: Clutch 931 slipping at high revs
Dutch924-racer

Replies: 17
Views: 41732

PostForum: 931 Tech.   Posted: Thu Apr 22, 2021 2:43 pm   Subject: Clutch 931 slipping at high revs
It is all S2, flywheel, etc. The fork, axle, sleeve and bushes are all new.
  Topic: Clutch 931 slipping at high revs
Dutch924-racer

Replies: 17
Views: 41732

PostForum: 931 Tech.   Posted: Wed Apr 21, 2021 3:10 pm   Subject: Clutch 931 slipping at high revs
It starts to slip around 4/4500 rpm in all gears. It is defenitly the clutch and not the wheels.

Lower rev no problems at all (also tested very low rev in higher gear but no problem at all).

The ...
  Topic: Clutch 931 slipping at high revs
Dutch924-racer

Replies: 17
Views: 41732

PostForum: 931 Tech.   Posted: Wed Apr 21, 2021 5:17 am   Subject: Clutch 931 slipping at high revs
My 931 clutch is slipping at high revs.

The clutch disc/ bearing is new and the pressure plate is an alu 911 one with higher clamping force.

I already replaced the master and slave cilinder.
...
  Topic: Spring rate for Porsche 924 Turbo
Dutch924-racer

Replies: 7
Views: 5934

PostForum: General Discussions   Posted: Wed Feb 24, 2021 7:09 pm   Subject: Spring rate for Porsche 924 Turbo
I run 30mm sway bar in the front and 20mm in the rear.
  Topic: Spring rate for Porsche 924 Turbo
Dutch924-racer

Replies: 7
Views: 5934

PostForum: General Discussions   Posted: Wed Feb 24, 2021 5:30 am   Subject: Spring rate for Porsche 924 Turbo
Just another question, I now had less stiff springs in the rear, the idea was less pressure in the rear to have oversteer on the track.

I read different stories about the spring rate. What I unders ...
 
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