Improved Clutch Over-Center spring - Update: Rev. 2 launched!
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Put me down for one, the clunking from my broken shaft is annoying the hell out of me. -
I’ll update the preorder list tonight.
I also just got two new factory clutch springs In to do the final measurements.
Figured out the difference to the E30. The spring in the E28 is slightly longer and thicker I wire diameter.



Since the E30s mostly use the 215mm and 228mm clutches, I believe that’s why they use the softer springs.
I don’t see any reason not to use the E28 assembly on an E30. Therefore these upgraded springs can also be used with the E30.Leave a comment:
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Improved Clutch Over-Center spring - Update: Rev. 2 launched!
After the Sport seat gearboxes, S38 crank hubs and S38 indicator holders, here is the next project for the crowd.
It’s a common problem that the clutch spring shaft bends, breaks, the snap ring pops out and the whole assembly falls apart or the bottom “feet” bend.






More of the details are explained in this thread:
This is the original part: 35311152540, used in E28, E34, E24, E23, E32 and E31.
It can also be used for: 35311151990, which is used in all E30s and some E28s with smaller engines.
Here is the timeline:
Preorders: 8/31-9/30
Manufacturing; 9/30-10/31
Shipping: after 10/31
Price per piece:
$125 which includes the a new spring. 100% deposit required before preorder timeline is up.
I think compared to the $86 for the original part that’s still cheap cast Al and plastic we came up with a competitive pricing. The parts will be made from 4340 Alloy with the improved design.Last edited by BenGerman; 08-18-2020, 08:46 AM.Tags: None

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