Fitted the SMF conversion at the weekend and followed the correct procedure for installing the flywheel bolts;
Stage 1 - 22lbsft
Stage 2 - 44lbsft
Stage 3 - +90deg
On completing Stage 3 of the final (6th bolt) the spline socket slipped and slightly rounded the bolt head. I'd only managed to get maybe 30-45deg of turn and can't get purchase to go any further. The bolts were new OEM supplied with the kit and had blue loctite preinstalled.
Due to this, and the 90deg being damn tight (!) I've made the call and have refitted everything and hopefully won't see a problem. I've heard of people using airguns on everything and also I'm fairly sure garages don't always follow procedures and just bang it all back together but mainly I'm thinking the angle part of the tightening procedure takes the bolts into yield so combined with the loctite should be pretty secure?
My slight concern is the potential unevenness of how tight the bolts are, but they were all done to an even 44lbsft all round beforehand. I suppose wheel bolts are rarely torqued with a calibrated wrench in reality but then a wheel doesn't spin at 6000rpm?!
Just wanted to put my thoughts down to make me a feel a bit better really but appreciate any input or thoughts you may have.