XRAY - Model racing cars

On P28 Instruction Manual,
http://www.teamxray.com/teamxray/showfi ... le_id=3576
9.2 ± 0.1mm adjust with shim behind flywheel

But on Setup Book P24,
http://www.teamxray.com/teamxray/showfi ... le_id=3577
9.0 ± 0.1mm adjust with shim behind flywheel



1) which one should I follow?
2) does is have to be accruate to 0.1mm?

Thanks in advance!

The shimming there will give a rough pre-setting of setting up the gap, just build the clutch and see how it comes out, if the gap without shimming on the top-end is to small then you must take away a shim from behind the flywheel.
If the gap is to big you can always fill it up at the top-end but then it is better to place an extra shim behind the flywheel so there is not a lot of shiims needed on the top-end.