930 Front Calipers - Help?

[martin_gibson]

I've just had my set of Bremtek racing calipers replaced with a refurbished set of 930 calipers and there is now a grinding noise from the front right hand side, but 'only' when turning right.





On closer examination it would appear that the right hand 930 rotor has very little clearance (3-4mm) to the bottom of the A-arm / ball joint (much more clearance on the left side).

See:





The front struts are lowered RSR units and the rotors are new Sebro's which seem to be installed in the correct orientation.

Any advice would be much appreciated?

Thx

Martin

[group911@aol.co]

Bent strut housing maybe? Spindle should be 11 degrees. I think it would take a positive camber bend to cause your problem so in your case it would be 11 degrees ++. Good luck

[TRE Cup]

martin
we have seen this before. Standard camber on raised spindle struts. Here it the solution w/o grinding away on the lower control am. Remove the hub/rotor assembly, remove the bearing seal race spacer from the strut. Source a thin washer to go between the bearing race spacer and the strut, reassemble. You won't need much; maybe .010 " will do it

[martin_gibson]

Originally Posted by TRE Cup

we have seen this before. Standard camber on raised spindle struts. Here it the solution w/o grinding away on the lower control am. Remove the hub/rotor assembly, remove the bearing seal race spacer from the strut. Source a thin washer to go between the bearing race spacer and the strut, reassemble. You won't need much; maybe .010 " will do it

Dave,

Thanks for that, seems a nice simple solution - presumably I should space out both sides?

Otherwise any thoughts on a decambered ball joint (Elephant racing) - I understand that these also push the disc away from the a-arm, although I'm not too sure whether the expense is worth it for an occassional track day car?

Now all I have to do is track down some washers?

Thx

Martin

[TRE Cup]

yes- do both sides. the washers can be larger i.d. than the spindle but should be absolutely flat so the bearing spacers can be pressed fully against them

Pm me at tremotorsports@gmail.com re the camber joints from elephant