Vehicle & Technical > Defender

brakes crap after caliper replacement

(1/3) > >>

Saffy:
Replaced the rear calipers on the 110 week or so ago......... the 5 years of squeaky brakes gone..... bliss.  Trouble is the brake feel crapola! Having to double pump and no confidence. System is bleed through many a time and over half litre of fluid just in case. Servo vacuum is there from the pump - no idea if servo itself is working - guess i could try without pipe attached?.

My thoughts are that I used the old 3/4 worn pads, and now that the pistons are free to go back into calipers (unlike the old set) there is a lot more travel before pads hit disc. The brings me to 2nd thought... wondering if the disc are warped and knocking the pads back. Or maybe the wheel bearings are loose and doing the same (though I didn't notice any play in bearings when fitting wheels).

anything other suggestions?

lambert:
You have bled them in the right order and done the fronts too? Have you checked front bearings too or just rear ones? If rotors were warped you ought to feel in in the pedal.

Boddle:
How did you bleed them?
Pumping pedal or
Pressure bleeding (using something like this http://www.screwfix.com/p/eezibleed-brake-bleeding-kit/33881?cm_mmc=Google-_-Product%20Listing%20Ads-_-Sales%20Tracking-_-sales%20tracking%20url&gclid=COqG6dzKlLMCFanItAod3GAAog) can be bought from halfords.

most Land-Rovers need Pressure bleeding

Changing the calipers may well have a knock on effect on the master cylinder, May worth looking at that

Welshbreed:
Also you want to bleed in order of (pipe) distance from the master cylinder. Start with the furthest corner and then work towards the shorter pipes

Saffy:
Bleed by pedal pump with assistant first, then pressure bled. Did the correct corners in order (I think). Will have another go the weekend and check for other issues.

the truck originally had a trailer air brake system fitted by LRSV and that is plumbed off the brake line to an actuator (handbrake also had a double cable which went to actuator). The airbrake system are long gone but that actuator is still there - wondering if it is playing up now, I will need to remove it and its brake line and cap off the T piece to make sure.

Navigation

[0] Message Index

[#] Next page

Go to full version