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Post by Deleted on Jul 31, 2014 8:18:43 GMT 1
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Post by upkeep on Jul 31, 2014 12:39:27 GMT 1
The reason why I use the brake wind back tool is not because I have to wind the pistons back in, as they just push back, but because in my opinion it is the right way to do the job and ensures that I get the right feel for the pistons while returning into the calipers bodies, where big grips unevenly secured around the caliper body, half on and half off the pistons could cause the pistons to be pushed back slightly misaligned, although I agree they can and will do the job, but for the observers its not the professional way to be seen to maintain the brakes? Totally agree
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Post by Deleted on Jul 31, 2014 21:18:09 GMT 1
I didn't manage to take any photos as the camera batteries are low , so I have had a good visual inspection of the components and working along the advice received from Rhubarb I removed the brake caliper and pads, then fitted the outer brake pad into the guide and refitted the caliper, ensuring that the pad was correctly located in the guides and the caliper body. Offering the bolts in towards the hub the caliper was not correctly inline when the outer brake pad was fully home to the brake disc correctly aligned. I then moved the caliper forwards towards the front of the car to centralize the bolts, and this was the point where the brake pad could be seen to be out of alignment, and quite a bit I might add to the eye. I fitted a recon caliper and refitted the brake pads and then took the car for a good road test with my temperature measuring device , the brakes nearside and offside front are now operating at roughly the same temperatures , so I am going to take the car tomorrow to work and do a roller brake test and see how they behave, and if they are OK I can safely register it for the retest and then job finished . Visual inspection of the brake caliper being honest I can't see anything really out of alignment but the recon caliper fitted much better than the original one, and I also noticed quite readily that fitting the brake pad damping spring was easier to install by hand, were previously on the old caliper I had to use a small pry bar to lever the damping spring over the caliper lugs, and this must be telling me something? See how it goes tomorrow
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Post by Karl on Jul 31, 2014 22:23:07 GMT 1
Just test it with the decelerometer LOL
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Post by Deleted on Aug 1, 2014 12:54:43 GMT 1
Never come across this , only thing i have seen is bent slider pins, and they move in rubber sleeves,
Are you from pro boards mot testers forum ?
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Post by Deleted on Aug 1, 2014 18:08:09 GMT 1
Roller brake tested it today and no noticeable difference in rate of increase or decrease with brake efforts across the axle and the maximum imbalance recorded at maximum brake efforts was 04% Must have been something to do with the guides in the caliper because that it the only thing I have changed which has fixed the fault. Not registered on a mot forum as yet but may do at some point.
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Post by sorted on Aug 1, 2014 18:55:19 GMT 1
I had this on my wifes Astra last year. N/S brake kept binding and smelling hot, stripped multiple times and cleaned etc. I could even push the piston back in with my thumbs, replaced flexi too. replaced claiper in the end and it was fine but never could see what was wrong with the old one
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