Page 1 of 1
4 piston caliper orientation
Posted: Thu May 09, 2013 9:41 am
by amd is the best
As you all are likely aware, 4 piston calipers have two different sized pistons. The larger are supposed to be leading and smaller trailing from what I understand.
My question, how big of a deal is it that they are in a correct orientation? I can't get the crossover pipes out without destroying the fittings.
Re: 4 piston caliper orientation
Posted: Fri May 10, 2013 8:34 am
by amd is the best
Anyone?
Re: 4 piston caliper orientation
Posted: Fri May 10, 2013 11:05 am
by audifreakjim
The brakes will work, but you will probably see uneven pad wear and possibly decreased clamping power due to the drag on the pad not being ideal. I would run them and maybe keep an eye out for a second set or a replacement crossover tube.
Or you can bleed them off the car and then re-install them "upside down", but with the correct piston orientation. This is probably the safe thing to do.
Re: 4 piston caliper orientation
Posted: Fri May 10, 2013 11:14 am
by amd is the best
GOOD CALL JIM!!! Thanks! I'll just bleed them before mounting. Can't believe I hadn't thought of that.
Re: 4 piston caliper orientation
Posted: Fri May 10, 2013 11:25 am
by audifreakjim
Anytime, now just post more burnout vids!