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Old 09-05-2018, 11:27 AM   #1
BenGerman
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Improved Clutch Over-Center spring - Update: E30 fitment

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:

http://www.mye28.com/viewtopic.php?f=3&t=147421

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; 09-13-2018 at 08:08 AM.
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Old 09-13-2018, 08:04 AM   #2
BenGerman
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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.
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Old 09-17-2018, 09:26 AM   #3
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No one has issues with these here?
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Old 09-17-2018, 10:29 AM   #4
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I usually just remove them once they've become trouble.
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Old 10-04-2018, 08:41 PM   #5
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Put me down for one, the clunking from my broken shaft is annoying the hell out of me.
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Old 10-09-2018, 12:38 PM   #6
BenGerman
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Just saw your message, sorry.

Yes, the failure of the spring annoyed the crap out of me.
I didn’t like the pedal feel of no spring in there, that’s why I decided to come up with a solution that won’t fail again.
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Old 10-09-2018, 10:02 PM   #7
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Old 11-26-2018, 07:42 PM   #8
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Almost ready! Just finishing the last couple of pivot pins.
Springs are also all here by now.






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Old 02-03-2019, 10:55 AM   #9
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These still available?

Sent from my SM-G955U using Tapatalk
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Old 03-06-2019, 10:20 AM   #10
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bump. I want one
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Old 03-07-2019, 11:31 AM   #11
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Old 05-25-2019, 04:32 PM   #12
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ive never had one of these does it make the clutch harder to push in?
does it just provide resistance so you don't accidentally disengage the clutch if your foot is resting on the peddle?
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