| Author |
Message |
Topic: Valve lapping and clearance adjusting screws concern. |
Fifty50Plus
Replies: 8
Views: 557
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Forum: General Discussions Posted: Wed Apr 15, 2026 3:55 am Subject: Valve lapping and clearance adjusting screws concern. |
| As Vaughan says, using shims in a race engine is a good thing. It saves weight (lifters are empty, without the heave standard adjuster screw) but requires removing the cam to change shims. Plus the 9 ... |
Topic: Turbo flywheel dimensions for machining? |
Fifty50Plus
Replies: 8
Views: 2241
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Forum: 931 Tech. Posted: Sun Apr 05, 2026 3:09 am Subject: Turbo flywheel dimensions for machining? |
| Sounds like a fat pressure plate or ToB. Machining the flywheel would increase the distance from a PP to the ToB. Or, can the throw out arm be installed backwards? |
Topic: Exhaust manifold color |
Fifty50Plus
Replies: 2
Views: 1893
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Forum: General Discussions Posted: Sun Apr 05, 2026 3:03 am Subject: Exhaust manifold color |
| Original parts were not white. Perhaps a prior owner had the parts ceramic coated or painted them. Not an indication of an overly lean mixture, rather normal exhaust corrosion. |
Topic: 931 alternator bushings once again available! |
Fifty50Plus
Replies: 10
Views: 3107
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Forum: 931 Tech. Posted: Fri Apr 03, 2026 4:31 am Subject: 931 alternator bushings once again available! |
| I don't know if the 931 and NA 924 bushings are the same but the NA ones don't last long. On my race car I've made some metal ones on my lathe to keep the alternator pulley in line with the crank and ... |
Topic: Aging Rant |
Fifty50Plus
Replies: 9
Views: 8005
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Forum: General Discussions Posted: Sun Mar 08, 2026 3:05 am Subject: Aging Rant |
| Update for me. I had my second (left) hip replaced at the end of December after another visit with my orthopedic surgeon in November. He did Xrays on that and my right knee. He said they were both ... |
Topic: ANYONE DOING ANYTHING EXCITING ON THEIR CAR ? |
Fifty50Plus
Replies: 2271
Views: 4257525
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Forum: General Discussions Posted: Tue Mar 03, 2026 8:19 am Subject: ANYONE DOING ANYTHING EXCITING ON THEIR CAR ? |
| My Endurance race team was called Fifty Plus Racing back in the 1990s because all the drivers were over fifty years old. My business is called Fifty Plus Cars LLC because I only work on the older Por ... |
Topic: did the 924D have wheel spacers? |
Fifty50Plus
Replies: 4
Views: 4539
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Forum: General Discussions Posted: Sat Feb 07, 2026 9:15 am Subject: did the 924D have wheel spacers? |
Ahh...If only Dan were here.
I have a large poster of the D Prod 924 at the Road Atlanta Runoffs when Doc Bundy won. There are very wide add-on flares on both the front and rear. You can see that t ... |
Topic: 1982/83 924 Euro Won't start |
Fifty50Plus
Replies: 71
Views: 74329
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Forum: General Discussions Posted: Wed Dec 24, 2025 9:28 am Subject: 1982/83 924 Euro Won't start |
| Sounds like a bad check valve between the fuel pump and fuel distributor slowly bleeding off the internal fuel pressure. |
Topic: How do I clean my transmission casing? |
Fifty50Plus
Replies: 4
Views: 6879
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Forum: General Discussions Posted: Sun Dec 07, 2025 6:40 am Subject: How do I clean my transmission casing? |
| Vapor honing (vapor blasting) cleans up the aluminum and makes it look like it just came out of the foundry. DO NOT glass bead it. |
Topic: Rear Drum Rebuild |
Fifty50Plus
Replies: 29
Views: 33516
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Forum: General Discussions Posted: Tue Nov 04, 2025 3:52 am Subject: Rear Drum Rebuild |
| As far as fronts go, I just pulled these parts off my '82 924 turbo (a tree fell on the car). What I kept are the front spindles, calipers backing plates and hubs. You are welcome to them if you dec ... |
Topic: Aging Rant |
Fifty50Plus
Replies: 9
Views: 8005
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Forum: General Discussions Posted: Fri Oct 24, 2025 1:51 am Subject: Aging Rant |
| I second what Vaughan said but have further advice. I'm 78 and started racing when I was 30. I was a runner for about 30 years but stopped at 68 cuz my knees bothered me. I still walk the dogs dail ... |
Topic: SPA |
Fifty50Plus
Replies: 23
Views: 26171
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Forum: 924 Racing Today Posted: Fri Oct 10, 2025 12:41 pm Subject: SPA |
Great effort! Congrats!
If we didn't have stories like this to keep us warm in the winter we probably wouldn't continue to race.  |
Topic: fuel distributor rebuild fail |
Fifty50Plus
Replies: 12
Views: 9413
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Forum: General Discussions Posted: Tue Aug 26, 2025 2:43 am Subject: fuel distributor rebuild fail |
| Every time I rebuilt a fuel distributor, I split it, kept the four little springy things with caps separated so that they go back in the same location, removed all the rubber O rings, cleaned the filt ... |
Topic: fuel distributor rebuild fail |
Fifty50Plus
Replies: 12
Views: 9413
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Forum: General Discussions Posted: Sat Aug 23, 2025 8:47 am Subject: fuel distributor rebuild fail |
| Couldn't figure it out so I put in my original fuel distributor. I left the fuel lines disconnected from the injectors and powered up the fuel pump. All the lines remained dry until I lifted up the ... |
Topic: fuel distributor rebuild fail |
Fifty50Plus
Replies: 12
Views: 9413
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Forum: General Discussions Posted: Fri Aug 15, 2025 6:36 am Subject: fuel distributor rebuild fail |
| Last week I swapped my fuel distributor (0 438 100 065) with a supposed rebuild (same number). I turned on the fuel pump on the race car and the replacement distributor immediately started pumping fu ... |
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