Aggieturbo Posted February 23, 2009 Share Posted February 23, 2009 Hi, I've just replaced the pistons and seals in my nearside caliper as the LR failed an MOT for pulling to the right when braking. This has made no difference at all! As I'm a bit of a novice at this sort of thing, I'm looking for ideas as to what might be wrong. Is it possible there is still air in the system? how much fluid should I bleed through before accepting that there is non air left? Thanks, Tony Quote Link to comment Share on other sites More sharing options...
western Posted February 23, 2009 Share Posted February 23, 2009 provided you have air free fluid from the bleed screw, thats about all you can do, I usually give the pedal a good pumping then rebleed making sure the free end of the hose in below the fluid level in bleed jar, last time i used a oneway valve bleed tube, check the rear brakes are bled correctly too & pads on both fronts are about equal thickness & wheel bearings are correctly adjusted. Quote Link to comment Share on other sites More sharing options...
Aggieturbo Posted February 23, 2009 Author Share Posted February 23, 2009 Thanks, I'll rebleed the fronts and also do the backs. What's involved with checking the wheel bearings? Quote Link to comment Share on other sites More sharing options...
western Posted February 23, 2009 Share Posted February 23, 2009 jack up each wheel in turn, place hands at 12 & 6 o'clock & try to rock the wheel/hub, you should feel some minute movement, if unsure reset the bearing adjustment as per the workshop manual. Quote Link to comment Share on other sites More sharing options...
daveturnbull Posted February 23, 2009 Share Posted February 23, 2009 Tony, Did you fit new pads aswell? If you had leaking seals the old ones will more than likely be contaminated with brake fluid and just glide over the disc rather than bite into it. If the leak was really bad then the disc may need replacing too. Dave Quote Link to comment Share on other sites More sharing options...
western Posted February 23, 2009 Share Posted February 23, 2009 have the tracking checked too, as if it'd not set correctly any imbalance will pull the vehicle off the straight ahead while braking. Quote Link to comment Share on other sites More sharing options...
Shox Dr Posted February 23, 2009 Share Posted February 23, 2009 Mine was pulling to the NS, had a ride down to the local Kiwk fit, and they stuck it on the brake roller tester thingy. Found it was the OS pistons sticking. And the best bit didnt cost me a thing to have it tested. I did the work Quote Link to comment Share on other sites More sharing options...
Aggieturbo Posted February 23, 2009 Author Share Posted February 23, 2009 Dave, Ralph, I didn't replace the pads as they looked okay and still quite thick,There was certainly no evidence of fluid on them. It will probably pay to replace both sides anyway. I think I'm going to end up putting it into the garage as I need the vehicle fixed and I have a day job as well; I havent got time to do both. They can check the tracking for me too. It's already booked in for a retest tomorrow, so maybe they can spend some time looking at the problem. Thanks, Tony Quote Link to comment Share on other sites More sharing options...
western Posted February 23, 2009 Share Posted February 23, 2009 before you change the pads try swapping them over & then see if the problem still remains. Quote Link to comment Share on other sites More sharing options...
Aggieturbo Posted March 2, 2009 Author Share Posted March 2, 2009 Thanks for all your advice, I ended up rectifiying the problem by changing the seals and pistons on the offside too. Anyway, all MOT'd up for another year! Quote Link to comment Share on other sites More sharing options...
western Posted March 2, 2009 Share Posted March 2, 2009 always good to have a successful pass. Quote Link to comment Share on other sites More sharing options...
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