Originally Posted by RichardV6
The Roadster 3.7 clutch issue came to my attention when an owner was lent one whilst his Plus Four was in for a brake change. He asked me if it was normal to be that heavy, which compared to mine it was. I'd never had issue with mine but during some pedal and linkage re-engineering I noted that it had no pedal mounted return spring which earlier Roadsters did up to at least 2014. The return action coming from the clutch itself plus master cylinders own internal spring. The second return spring of course adds to clutch pedal heaviness. It's a simple task to unhook it for immediate improvement although removal entails taking out assembly as below.

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The work I did included replacing thrust washers with phospor bronze equivalents, one of which was missing anyway ex factory, plus changing to proper stainless clevis fork linkages on both pedals - note clevis thrust washers which are also not always present ex factory. This improved smoothness of pedal actions noticeably and remains so. Well worth the work IMO.

I did more or less exactly the same Richard, pulled the pedal box assy out rebushed/relubed ( and painted) etc and removed clutch return spring.. also found that the yoke/clevis pin adjustment was wrong and binding past mid throw on the brake.. It was all improved after this, but the left clutch leg still said enough in stop/start traffic. I still very much like the 3.7 for its rawness and overall feeling but as we use the Plus Six mainly for touring I find it is an easier beast to live with...for us it was horses for courses.. Its a pity the BMW straight six engine could not be swapped for an AMG V8 as we had in our C63.. Now that would be something.. in a straight line..