guillaumeber
Vendor
Hello!
I've changed a lot of rear brakes on cars with rear screw-type calipers, I know how to rotate the piston and how to service them.
As of right now, I'm having 2 used calipers on my work bench which are about to go on my mk4.
My concern is that: On one of the calipers, if I rotate the lever by hand, the piston will pull out slightly and when releasing the lever, it will stay at it's new position (I.e. If I pump the lever, the piston will eventually pop out of the caliper's housing)
On my second caliper, If i rotate the lever by hand, the piston will pull out slightly and when releasing the lever, the piston will retract to it's previous position (I.e. If i pump the lever, the final position of the piston will be the same as when I started pumping.)
I'm not 100% sure of how the system works exactly and how should the piston act. I think I may have a problem with one of the calipers.
Can anyone point out how it should act? thanks a lot!!
g.b.
I've changed a lot of rear brakes on cars with rear screw-type calipers, I know how to rotate the piston and how to service them.
As of right now, I'm having 2 used calipers on my work bench which are about to go on my mk4.
My concern is that: On one of the calipers, if I rotate the lever by hand, the piston will pull out slightly and when releasing the lever, it will stay at it's new position (I.e. If I pump the lever, the piston will eventually pop out of the caliper's housing)
On my second caliper, If i rotate the lever by hand, the piston will pull out slightly and when releasing the lever, the piston will retract to it's previous position (I.e. If i pump the lever, the final position of the piston will be the same as when I started pumping.)
I'm not 100% sure of how the system works exactly and how should the piston act. I think I may have a problem with one of the calipers.
Can anyone point out how it should act? thanks a lot!!
g.b.