M30 single mass clutch on M50 Zf SG320 trans?

[Wanganstyle]

hey-

was wondering if this was possible:
was comparing flywheels between S52 and E24 633CSi and realized that:

starter teeth pattern is identical between s52 and M30 flywheel.

from comparing flywheels, M30 crankshaft is same bolt pattern and spacing as S52/M50 family; even the larger keyhole of the two flywheels are in the same spot.

s52 clutch is 240mm unsprung
M30 clutch is 240mm sprung

from uuc's s52 clutch kit; we know that the friction disc of e34m5 is sprung and works with the zfsg320 5mt s52 transmission.


I have a 240mm e34M5 sprung friction disc; im guessing its similar to the OEM 633csi unit. it also fits perfect in m30 flywheel space for it.

now I just need a M30 single mass pressure plate, and then I should be able to test it out - see if a m30 single mass clutch set will bolt up to a m50 family engine+ ZFsg320 transmission and engage / disengage; I have both loose and pedal hydrolics I could hook up

[Leo_328i]

Good luck mate. I personally wouldn't stuff around with clutch discs that are designed to go with different pressure plates and throwout bearings. I did this once and it actually jammed my gearbox and we needed to force it off!

Looks like you are onto something there with the flywheel though, perhaps us a stock M30 car clutch disc and pressure plate and see how you go!

Hopefully it works out and you can even use the M50 starter motor!

[Wanganstyle]

Good luck mate. I personally wouldn't stuff around with clutch discs that are designed to go with different pressure plates and throwout bearings. I did this once and it actually jammed my gearbox and we needed to force it off!

Looks like you are onto something there with the flywheel though, perhaps us a stock M30 car clutch disc and pressure plate and see how you go!

Hopefully it works out and you can even use the M50 starter motor!

Yeah?Im hoping m50 starter will plug and play

What combo did u use that got stuck?