kango
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| posted on 1/2/05 at 05:36 PM |
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Caliper overhaul
Where do I start and what special tools and knowlage do I need to overhaul std Cortina front calipers?
Any hidden snags
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rusty nuts
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| posted on 1/2/05 at 07:00 PM |
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Before starting check out availability and cost of seals, pistons and bleed nipples. Also worth checking cost of reconditioned units, DO NOT undo the
bolts holding the caliper halves together as seals are probably not available, clean exterior . Clamp one piston in bore using G clamp , use
compressed air or possibly master cylinder connected and bled,press out piston, clean bore using brake cleaner, fit new seal and dust cover to bore
.Lubricate seal with brake fluid, GENTLY insert new? piston to bore, repeat with next piston.
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blueshift
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| posted on 1/2/05 at 09:43 PM |
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the seals aren't a big deal, brakes international sell them for a few pence. The bolts however are a different matter, they are some sort of
special bolt that's done up to a special torque so as to remain in the elastic range or something (I'm not an engineer). The original
caliper manufacturers specifically don't make replacements available and I think they're one-use only.
unfortunately I don't have sources for this information, but I decided to get recon ones from a reputable company and let someone else worry
about it.
Front brakes - not the place to take chances imho!
[Edited on 1/2/05 by blueshift]
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Mark Allanson
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| posted on 1/2/05 at 09:52 PM |
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Darren at Dozracing supplied my recon kits - genuine units - the best.
You will probably need a grease gun to pressure the pistons out, and a G clamp to retain the first one to 'pop' while you pressure the
second out. Reassembly is very easy, but please do make sure the units are VERY clean before you start. The slightest fragment of dirt will ruin the
whole job.
 
Rescued attachment Caliper Recon.jpg
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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.jpg)
