GT40s.com - View Single Post

sibbat2 · 02-12-08, 05:58 PM

I decided to remove the front right rotor on my CAV over the weekend to investigate the pulling upon hard braking I have been experiencing for some time now. I also intend to machine in slots in the rotor while its out. After removing the adaptor and the rotor it became apparent that 4 of the lug bolts were loose, it seems that the holes on the hub are too big so that splines on the shoulder of the bolts simply rotate in the hub holes. I also noticed that the head of the one good bolt had been welded to the hub at one point. Upon closer examination it became obvious that the heads of the 4 other bolts had also been welded onto the hub and I probably broke the weld joints when loosening the pin drive nuts.

Is it possible that the bolts of incorrect size were used when the car was assembled in South Africa (CAV N0 51) and they simply welded the heads of the bolts to the hub to overcome the problem?.

Obviously the bolts have to be replaced but I do not know how to remove them as there is very little clearance between the hub and the upright. Do I have to remove the hub?.

Also what type of bolts do I need and where can I get them from.

02-12-08, 05:58 PM	#9 (permalink)
sibbat2 Rookie Join Date: Oct 2005 GT40: bristol uk Posts: 88 Rep Power: 4	Re: brake upgrade I decided to remove the front right rotor on my CAV over the weekend to investigate the pulling upon hard braking I have been experiencing for some time now. I also intend to machine in slots in the rotor while its out. After removing the adaptor and the rotor it became apparent that 4 of the lug bolts were loose, it seems that the holes on the hub are too big so that splines on the shoulder of the bolts simply rotate in the hub holes. I also noticed that the head of the one good bolt had been welded to the hub at one point. Upon closer examination it became obvious that the heads of the 4 other bolts had also been welded onto the hub and I probably broke the weld joints when loosening the pin drive nuts. Is it possible that the bolts of incorrect size were used when the car was assembled in South Africa (CAV N0 51) and they simply welded the heads of the bolts to the hub to overcome the problem?. Obviously the bolts have to be replaced but I do not know how to remove them as there is very little clearance between the hub and the upright. Do I have to remove the hub?. Also what type of bolts do I need and where can I get them from.