Mud-club
Vehicle & Technical => Discovery => Topic started by: bigwood on August 22, 2009, 14:11:05
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:roll:Couldn't put it off any longer, off to Paddocks bought a swivel kit, two discs, pads and bearings. Oh and some of those paper doily things as the missus calls them :lol:( gaskets). Started Thursday 1400, all striped by 1600 apart from the swivel. I got all but one of those very tight bolts out of the axle. The last one resorted to welding my oldest 14 mm spanner to the bolt.
All done and rebuilt by Friday lunch time so we had a bit of a play on Sunday. By mid morning a speed related clonking developed. After jacking up the front wheels we couldn't find any thing amiss so we carried on but it wouldn't go away. I gave up at this point and decided to find somewere safe and pull the front hub off. Still nothing amiss so we set off back, no noise for about 30 miles then noise comes back for 10 minits then stopped all the way home.. The only clue being that there was less noise when you braked. Monday at home we had a good susing and bogling session and we have found the noise. The inner pistons o/s/f caliper were sticking slightly so this allowed the pads to rattle in the caliper. This was probably as a result of me pushing the pads back to change the discs and pads. I did pump the brakes to push the pistons back out so I don't quite get this but after a lot of spraying and cleaning all seems well now. One thing to come from this, the last time I pulled an axle end down was in the seventy's so some things you never forget and I think I will stick with my 200TDI if only for the ease of maintenance at the roadside with a few tools we all carry. :D
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If the callipers were sticking then the pads would be tight up against the disk, if the pistons pull back slightly from the back of the pad then this is correct, then the pads can rattle unless you have decent anti-rattle springs or shims.
If that was your only problem then a job well done :D
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The sticking piston saga did have me baffled for a while but after the susing and bogling session its all I could think of. The inner pad on the offside was loose in the caliper and the pistons were sticking a little. The holes for the retain pins are elongated as most are . Maybe the calipers are slightly worn as well.The rear calipers are worn letting the pads drop onto the hub but that has received the third pin modification. :roll: My Disco is on an L--Plate and starting to secum to tin worm in the usual places but as much as I will be able afford a TD5 next year I will probably keep this for now. For the little niggles I have had so far and the ease of working on it I like it. The blue interior and crap fresh air vents that don't blow cold air above my chest are part of its character. :grin: