quote:Originally posted by bdud:
A picture of my front calipers split, no seal between the 2 halves.
Anders, it looks like you have a thin spacer on your hubs as well, is that the case?
If you do not use the spacers, where do your wheels hit on the calipers?
Here I have some personal experience on this subject.
First off, to move the caliper further inboard for more wheel clearance, you can shim it. You can machine spacers for it if you really need to move it back, then use longer bolts.
The critical factor though that controls that is the offset of the rotor. I think what is at play here, causing the variations in wheel clearance, is that there are several rotors being used in these different set ups?
Whatever location you determine the caliper should be located at, you still have to center the rotor in in. I've used hardened shims for this. Some as thin as .010" to get them right.
The rotors are all 12" (304.8mm) diameter and 1.25" (31.75mm) thick but the offsets are varying by what looks like up to 1/2" (13mm) or so.
I'd bet you a nickle, i.e., a US 5 cent piece, that the calipers are all the same, but the rotors vary? The spacers on this thickness rotor all look the same.
The simplest solution is to put the caliper where it needs to go to clear everything, then forget about finding an original application rotor that will fit. Just do what Anders did. Find a hat that comes close, or have some made to your specs. Those should last forever since you can change the rotor rings separately as need be.
Bdud. Do you have pictures of your rear brakes that you can post? Also, what is used for a gasket between the spacer and two halves on these calipers? Just silicone?