SMF on M30B35 : Have red and searched tons, but still have doubts.

[OMP]

Hi. I have searched tons and have a pretty good idea on the topic. However, I still have some doubts on the fit of the SMF in my E34 M30B35.

My E34 535i is from 12/1989 and I feel by DMF is going, and before it gets undriveable, I am preparing myself to switch to SMF little by little.

So, I have read tons and many threads on the subject but I am still missing 2 main things. : About the spacer going into the flywheel itself and the clutch kit to be used.

So, I got the SMF with reference number : 11 22 1 271 463 ( the 16lbs one I believe). The issue is that I got the flywheel thru Internet from a scrapyard and the part was a standalone part, so I have no reference at all from the car or production date it came from.

So, at this stage, based on REALOEM, these are my findings ( Based on the E28 533i, European 635i and M5 ( USA or EUR )) as I know it was fitted in much more models.

So, For the 533i, from REALOEM, this Flywheel was mounted from Production Date 07/1982 ( when it was launched) until 01/1984, after which, a DMF was fitted.
However, since I have read that the clutch must be from the car the flywheel is from, based on REALOEM as well, I found the following:
BMW Ref: 21219069010 for the clutch KIT for the 533i model UNTIL 09/1983
BMW Ref: 21219069012 for the clutch KIT for the 533i model FROM 09/1983

So, because I don´t know the prod date of the car the flywheel came off, I am finding an overlap between the Flywheel and cutches as the Flywheel ( SMF) is fitted in the 533i between 07/1982 and 01/1984, but the 21219069010 Ref goes until 09/1983…… So, what if the car the flywheel came off is from a prod date between 09/1983 and 12/1983?

However, the fitment on 635CSI models for the same flywheel is from 09/1980 and 01/1984, but for this model, clutch reference is 21219069012.

So what is the Reference for the clutch I should be looking for? I also saw about the M5/M6 clutch Ref: 21212226428, which seems to be also compatible ( but not sure).

Then, there is the spacer, which I believe my car ( with the Dual mass) does not have, and I have read that I need it, but not too sure….So, Do I need the spacer ( Ref 11221262827) to be able to fit the flywheel to my M30 B34?

And last, as a comment ( mainly on the clutch ), is that I am looking for the most comfortable usage….So, not at all looking for a drift or track car…on the contrary, I want the daily driving experience to be as standard and smooth as possible.

I have also read about the "while I am in there" stuff on seals, shifter linkeage, etc. Good information on this out there.

Thanks

[cirrusblau]

You're going to need new flywheel bolts (11227805885) as these are shorter that the ones for the DMF. From what I read before, it's best to use the shim/spacer (11221262827) as it will distribute the load/tension evenly across the surface of the flywheel. Also you might also need new pressure plate bolts (07129903984) they might be different from the ones for a DMF, maybe you could do some additional cross-referencing on realoem. For the clutch kit, what I have is an E28 M5 clutch kit for my E34, and a E28 535i kit on my E32. Strangely the M5 clutch kit has a lighter pedal feel than the 535i. Basically, any clutch kit from E28 and below or E24 633i will work as long as the clutch plate has springs.

[danespann]

Tons of clutch kits work on the single mass flywheels. I also have a 16lb one with a e24 m635csi resurfaced pressure plate but a 733i e23 disc on my m30b35. You should be able to use any clutch kit for a single mass car with the sprung hub. You'll need the little washer spacer under the bolt heads to distribute the load.

[OMP]

Thanks a lot guys. Really appeciate.
So, as a "simple" conclusion, both clutch kits either from the 533i up to 09/1983 or 635i will do....Even if they share different ref. numbers, I am guessing they are basically the same.... And as a last question, what about the M5/M6 clutch? Being different than those of the 533i/635i, should I speculate that is more "rigid" or les comfortable, even though I read that it is actually ( or may be ) softer...... It that so? So, in all, any 533i, 635i and even M5/M6 clutch kit will do with the spacer and hardware ( thanks for the refs, by the way). Cheers

[theBMWbeast]

There is no comfort difference with the clutches. M5 is easy to actuate. It is rated for more HP/Torque. Buy whatever easiest to come by for you, you'll be fine.

I daily an m30 w/ e28 m5 clutch. Absolutely 0 issues, or feelings that it might not be stock. And this is paired with an 8.5 lb flywheel....

Sent from my SM-S901U1 using Tapatalk

[danespann]

All my g260 and single mass cars have significantly lighter clutch pedals than my 525i that still has a dual mass and stock clutch.