well , it's the spring , my neighbour has his tractors out of his workshop , so time to get out and get under
having taken delivery of the device to measure temperatures as advised by david went for a spin down the mountain , some moderate brake applications , pulled into a layby and checked temperatures
rear discs approx 100C , nearside front 150C , offside front 300C !
well , that doesn't leave much room for doubt !
so left overnight , next morning bright and early [ 11 am ] next door ,trolley jack and pneumatic impact wrench made short work of wheel removal , then the fun began ...getting the pads out ...grr ; started at the top but getting enough movement to get the pads out was a pain ; combination of screwdrivers , pry bar and a lump hammer later was able to push the piston back enough to get the tops pads out , bottom piston went back easily with a little leverage fortunately
at this point I suspected the caliper would be difficult move but not a bit of it , just slid to and fro with a slight push
ok , so sticky piston it is ; push the pistons back as far as possible , small push on the brake pedal to get them out a bit , levered back again , repeat , and being an optimist cleaned up the edges of the one third used pads and re-assembled ; so far so good
so back on with the wheel [ am I the only person who struggles to get the security nut adaptor off ? ] and off for a test
good news and bad news
slightly different test route , same methodology
back discs 100 C , both front discs 180C [ hotter today ]
and no vibration while running along
BUT every time I brake ...big vibration !!!
maybe this is because the old pads need to bed in ....my neighbour had a quick look at them , could have put them down in a different order ; does anyone have any experience of this ?
current plan is to put up with it for the moment and see what happens , see if the piston stays free , followed by a new set of pads if the vibration doesn't go away
all comments gratefully accepted
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