Front Disc Brake Installation problem

[mikepasquale1]

Purchased new rotors through CJPony

Have a brand new set of calipers from an old restoration laying around that i bought on ebay about 4 years ago. they look and measure up identical to the originals. They came with new pads. New bearings and seals in the rotors. The caliper pistons are fully compressed.

Went to install the caliper and the pads dont fit over the rotor. I had to tap it on with a hammer its that tight. I was told to have the rotor cue after the pads and calipers were looked at by my mechanic friend. I couldnt even turn the wheel freely after installation

Cut .10's off of the back of the rotor??

 

[rvrtrash]

Purchased new rotors through CJPony

Have a brand new set of calipers from an old restoration laying around that i bought on ebay about 4 years ago. they look and measure up identical to the originals. They came with new pads. New bearings and seals in the rotors. The caliper pistons are fully compressed.

Went to install the caliper and the pads dont fit over the rotor. I had to tap it on with a hammer its that tight. I was told to have the rotor cue after the pads and calipers were looked at by my mechanic friend. I couldnt even turn the wheel freely after installation

Cut .10's off of the back of the rotor??

I had the same thing happen when I put my front end back together. I bought the pads at NAPA and asked the counterman about it and he said they've had pads that are made thicker than original. I solved it by grinding material off the pads. I figured they were cheaper and easier to replace in the future.

Steve

 

[NoLimitssjca]

It's been my experience that when they seem too tight, the pistons have just a little more to give. I know you used a hammer but that doesn't move the piston. Try getting some more leverage on those pistons and see if you can move them a couple more thousanths.

 

[thundertc64]

take an old brake pad put in caliper and then get a C clamp and put on pad and caliper slowly close clamp and it will squeeze piston in.

 

[mikepasquale1]

I did that. The pistons are completely compressed. I also was thinking about putting the pads on a belt sander and removing some material

 

[RacerX]

I'd take the material off of the pads. why cut your brand new rotors and end up with less material than you started with? I always sacrifice the cheapest item in these situations. In this case, the pads get cut down.

 

[turtle5353]

A little run on the belt sander with the pads and you will be good to go.

 

[mikepasquale1]

Sounds good. will do. Thanks everyone!!

 

[droptop73]

Agreed, if you modify a part do the cheapest part. I'd try pulling the piston in with a clamp first though.

 

[mikepasquale1]

I used a clamp on the piston. it is definately 100% compressed.