BigDawgV8
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| posted on 31/5/09 at 08:35 AM |
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Definitive Sierra Rear Brake Adjust Advice Please!
Hi All,
Well my V8 Mog passed it's second mot on friday with only 1 comment from the tester.
The hand-brake takes A LOT of effort to come up on the test rollers.
Can anyone tell me THE way to get the hand-brake working properly please!?
The Haynes way doesn't appear to work...................
FYI - 1990 XR4 standard rear discs and calipers (professionally re-built).
Any advice much appreciated - Ta!
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rusty nuts
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| posted on 31/5/09 at 08:40 AM |
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Slacken off the handbrake cable adjuster , I then adjust the pad to disc clearance using the piston wind back tool (means undoing the caliper bolts)
aim for about 4 thou clearance . refit caliper , pump pedal and then readjust the handbrake cable. Some will say you don't need to adjust the
piston as I do but damage to the caliper is possible if you just pump the pedal. (As often said in the instructions with new/recon calipers)
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NS Dev
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| posted on 31/5/09 at 09:04 AM |
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how does pumping the pedal damage the caliper, not an argument, just a query, as from what I have seen of the innards of the caliper I can't see
how it could be damaged?
In terms of the thread, yep, that setup method would work fine, but then I have never gone to that trouble and have equally never had any problems
with these calipers!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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rusty nuts
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| posted on 31/5/09 at 09:15 AM |
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I presume it damages the auto adjuster mechanism . As i pointed out new/recon calipers often have a warning on them so I've always adjusted the
pad clearance as a precaution as much as anything.
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NS Dev
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| posted on 31/5/09 at 09:47 AM |
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Must be, can only assume that somebody has fitted one with either no pads or very worn pads and somehow that's knackered the adjuster, and then
they have claimed for a new caliper or something!
The adjuster mech is incredibly simple if you take one apart, not much to damage really.
Any time I have changed a caliper its usually been with new pads so not much clearance anyway, prob hence the no probs!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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redscamp
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| posted on 31/5/09 at 11:05 AM |
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i have had to roughen the surface of the rear discs
with a sanding diisc on an angle grinder to pass the mot
it was the only way it was going to pass
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britishtrident
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| posted on 31/5/09 at 01:56 PM |
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It is forcing the piston back with the handbrake partly on that damages the self-adjusters.
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