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  Topic: Turbo flywheel dimensions for machining?
barnwerks

Replies: 9
Views: 4402

PostForum: 931 Tech.   Posted: Mon Apr 13, 2026 3:02 am   Subject: Turbo flywheel dimensions for machining?
Here are a couple pages from the FSM that may be of interest.
Note the different flywheel depth (with a step) for use with a rubber centered drive disc.
The image of two flywheels from my stash, one ...
  Topic: Turbo flywheel dimensions for machining?
barnwerks

Replies: 9
Views: 4402

PostForum: 931 Tech.   Posted: Sun Apr 12, 2026 11:23 pm   Subject: Turbo flywheel dimensions for machining?
I pulled out some 931 parts I have, the first flywheel I found is 931 102 208 01, it has no step. I believe this was from a late turbo. I'll dig around some more to see if there may also be an early v ...
  Topic: 1982/83 924 Euro Won't start
barnwerks

Replies: 71
Views: 90992

PostForum: General Discussions   Posted: Fri Nov 28, 2025 12:46 am   Subject: 1982/83 924 Euro Won't start
To work on the CIS system successfully, a fuel pressure gauge assembly with a bypass valve is a necessity, it is the equivalent of a scan tool.
  Topic: roof skin
barnwerks

Replies: 6
Views: 4392

PostForum: General Discussions   Posted: Tue May 06, 2025 7:51 am   Subject: roof skin
The sunroof panels are fiberglass.
  Topic: Engine has low compression
barnwerks

Replies: 4
Views: 3461

PostForum: General Discussions   Posted: Tue Apr 08, 2025 7:29 am   Subject: Engine has low compression
Remember that the crankshaft has two TDC's. One at compression and one at exhaust.
  Topic: 1986 924s - fuming issues
barnwerks

Replies: 8
Views: 32634

PostForum: General Discussions   Posted: Wed Jan 29, 2025 1:51 pm   Subject: 1986 924s - fuming issues
Check the condition of the hatch seal and the adjustment of the hatch latches.
  Topic: Has anyone tried the new Dansk repro fuel tank?
barnwerks

Replies: 17
Views: 64024

PostForum: General Discussions   Posted: Fri Dec 27, 2024 7:12 am   Subject: Has anyone tried the new Dansk repro fuel tank?




It really makes me wonder how we had the early 924 with no in-tank pump, then the later 924 with an in-tank pump, then the 944 with again no in-tank pump?

What changed on the 944 that it co ...
  Topic: 951 rear arms on 931 g31 transmission
barnwerks

Replies: 7
Views: 36533

PostForum: Performance Upgrades   Posted: Tue Dec 24, 2024 9:26 am   Subject: 951 rear arms on 931 g31 transmission
All 944 aluminum rear control arms are the same (early offset). The difference in offset beginning in 1987 is due to the projection of the hub.
  Topic: Engine paint color for 2.0 NA
barnwerks

Replies: 7
Views: 5465

PostForum: General Discussions   Posted: Mon Dec 23, 2024 4:47 am   Subject: Engine paint color for 2.0 NA
The three examples of original engines I have, an 80 and two 81's, the blocks are black. One has only fragments of the coating left amongst the rust.
  Topic: What socket to use on exhaust collar bolt
barnwerks

Replies: 6
Views: 33325

PostForum: 931 Tech.   Posted: Sun Dec 22, 2024 7:56 am   Subject: What socket to use on exhaust collar bolt
These are 12 point nuts. Just need a 12 point socket.
  Topic: '77 924 Headlight Pop-Up motor issues?
barnwerks

Replies: 2
Views: 3423

PostForum: General Discussions   Posted: Sat Dec 14, 2024 12:06 am   Subject: '77 924 Headlight Pop-Up motor issues?
This fault is likely at the rotary switch located within the headlight motor assembly. There is great information on these assemblies at www.clarks-garage.com Although the info contained there is for ...
  Topic: 924S Head Work
barnwerks

Replies: 2
Views: 28755

PostForum: 924S Discussions   Posted: Wed Oct 30, 2024 11:43 pm   Subject: 924S Head Work
Replacing valve seals is not likely to remedy the oil burning. Generally the seals only fail after the guides are worn out of spec so even if new seals slow the oil, it won't be for long. From my expe ...
  Topic: bent torque tube axle
barnwerks

Replies: 12
Views: 8399

PostForum: General Discussions   Posted: Sun Oct 20, 2024 10:25 pm   Subject: bent torque tube axle
In regard to bending the driveshaft, I will contend that, while there can be potential for damage to the transaxle or it's mountings, lifting the car from the transaxle will not introduce unusual forc ...
  Topic: Anyone have a procedure for a rear engine coolant leak.
barnwerks

Replies: 4
Views: 31228

PostForum: 931 Tech.   Posted: Sun Oct 06, 2024 7:57 am   Subject: Anyone have a procedure for a rear engine coolant leak.
Buy or borrow or rent a coolant pressure tester to diagnose any remaining leaks.
  Topic: Seamless, bolt-on, plug-in EFI kit for the 924/931/928
barnwerks

Replies: 173
Views: 261380

PostForum: General Discussions   Posted: Sat Sep 07, 2024 7:03 am   Subject: Seamless, bolt-on, plug-in EFI kit for the 924/931/928
Very exciting.
Email sent to get my name on the list.
 
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