How do you depress the brake caliper on 06 s type jaguar
I need to completely depress the brake caliper on my 2006 s type jaguar. I can use needle nose pliers to rotate the pistons but they won't go all the way in. Yes, I am also bleeding the brakes so they it isn't due to brake fluid pressure (as far as I know of)
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most likely they control mechanism is a bit stiff/dry , if the roof will move forward spray wd40 up each side runners etc go back and forwards a bit at a time ,this should lubricate the mechanism and hope fully save ypou having the roof stripped out to solve the problem
As a first course of action, I strongly suggest that you check the brake fluid. If it's not sitting on the right level please do fill it up.
The problem can be on the brake booster too... If it's worn out the brake tends to be hard. If that's the case then you will need to have it replaced.
Do you hear any squeaking sound from the wheels? If there is then the brake calipers can be stuck which can cause the pedal to be hard when depressed. You will need to replace the calipers if that's the case.
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If your car has antilock brakes, changing the pads is a bit different
than what most people are used to. With a normal (non-ABS) car, you just
unbolt the caliper, press apart the old pads to retract the piston,
the pads. This procedure forces much of the brake fluid out of the
caliper and back into the master cylinder. The fluid is put back once
you step on the brakes.
With an ABS car, you CAN'T force the fluid back;
if you do you'll damage the ABS valve body (£800). Instead, you must
open the caliper bleed screw and drain the excess fluid out of the
caliper while you press the piston back into the bore. This is very
important! If you force the dirty, water-contaminated fluid back through
the relatively fragile valve body, you'll ruin it.
you know that you are supposed to replace all of the brake
fluid in an ABS car once each year? That's different from older-style
If you are replacing the rear pads and are trying to retract the caliper pistons here is what you need to do. Use a piston installation tool in order to twist the brake caliper piston into the brake caliper bore. If you do not have the tool you can retract the piston by using a needle nose plier. Exert downward force and rotate clockwise until the piston bottoms out. Before installing be sure the two "U" shaped slots are at 6:00 and 12:00 Oclock.
Sounds like the pistons bound up in the calipers. Remove the calipers and attempt to seat the pistons in the calipers with a screw clamp. If no go, that's the problem. They can be replaced, but most folks just get a whole new caliper these days.
I know that it's a jag, and I know you are trying to be perfect, but in over thirty years, I've never seen a tech put a torque wrench on a caliper bolt. If you really want to I'd use about 35-40 foot pounds. (I go by bolt diameter) You don't have to slam them down but you don't want them to back out either. A bit over 35 is reasonable and should not damage anything and will keep them secure! I have no idea what nm conversion is..
the pistons have to be screwed back in place,I use a pair of needle nose plyers while applying constant pressure to piston.They can be rotated both left & right but you will notice soon which way pushes them in.