Originally Posted by
benamin
B5 question
I am just building my new mugen 6t and assembled the mugen clutch on my new B5. The 6T instruction manual shows putting a 7x14x0.5 washer/shim behind the collet which is supplied with the kit. I have never seen a large diameter shim like that used and wondered if I should remove it. I am more concerned about my B5's front bearing. What do you think? out or in?
Thanks
DO NOT run a shim that large behind the collet!

I'm very surprised Mugen would suggest that!

It will tear the front bearing seal to shreds.

You need a shim that is no larger than the inner bearing race.