Sandboy Posted February 24, 2013 Share Posted February 24, 2013 explains the worse than usual barking performance - siezed pistons and slider on standard rear brakes, believed to be of sierra origin! option one, buy replacement assembly circa £200 (cc don't have stock but several on ebay), option two overhaul £60 plus sense of achievement. Any recommendations/advice appreciated, don't want to go down overhaul route only to have to buy replacements anyway - been there done that? Link to comment Share on other sites More sharing options...
ECR Posted February 24, 2013 Share Posted February 24, 2013 have a look at : http://biggred.co.uk/ I serviced my rear calipers easily. Replaced seals and reassembled for about £10.00 IIRC. Alternatively, they'll do it for you. The Sierra rear caliper is very easy to strip as long as you don't need to become involved with the handbrake mechanism (not likely in your case)..... Link to comment Share on other sites More sharing options...
F355GTS Posted February 24, 2013 Share Posted February 24, 2013 Are you sure it's seized? they don't just push back in but need to be rotated to drive the piston back in Link to comment Share on other sites More sharing options...
Mavic82 Posted February 24, 2013 Share Posted February 24, 2013 Peter Lloyd rallying sell a pair of these brand new with carriers for £190 and they are in stock if you want a quick fix. (Assuming they are seized) Link to comment Share on other sites More sharing options...
peter clarke Posted February 24, 2013 Share Posted February 24, 2013 Just about to do my rears. Any other useful info on pushing back the pistons. You say rotate them. Any particular direction any special tool? Any advice welcome Thanks Peter Link to comment Share on other sites More sharing options...
Shad Posted February 24, 2013 Share Posted February 24, 2013 Clockwise to move back into the caliper. One of these makes it very easy to do: http://compare.ebay.co.uk/like/390519167504?var=lv<yp=AllFixedPriceItemTypes&var=sbar&cbt=y Link to comment Share on other sites More sharing options...
Sandboy Posted February 24, 2013 Author Share Posted February 24, 2013 thanks for replies, deffo siezed - windback tool not making any impact, encoraged by step by step on bigred to have a go - but with seals, pistons and slider bolts going to be nearer £60, still a decent saving and since rest of car as equally neglected suspect going to need it. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted February 24, 2013 Member Share Posted February 24, 2013 Brake maintenance from Alcester Racing 7s, includes the piston trick. Jonathan Link to comment Share on other sites More sharing options...
Birkin S3 ZA. Posted February 25, 2013 Share Posted February 25, 2013 A trick I have used a few times to remove a seized piston is to find a grease nipple or make a fitting to fit the calliper. And use a grease gun to push the piston out, a grease gun will push 10.000 psi and will work even if the seals are leaking. Link to comment Share on other sites More sharing options...
peter clarke Posted February 25, 2013 Share Posted February 25, 2013 Thanks for the info, tool ordered, Peter Link to comment Share on other sites More sharing options...
ECR Posted February 25, 2013 Share Posted February 25, 2013 Neat idea Birkin. Noted .... Link to comment Share on other sites More sharing options...
elie boone Posted February 26, 2013 Share Posted February 26, 2013 Peter, i see you ordered the tool, otherwise you could borrow my set of wind back tool Link to comment Share on other sites More sharing options...
peter clarke Posted February 26, 2013 Share Posted February 26, 2013 Thanks Elie, had not thought to ask and price seemed very good. Buy the way where are you , I am just outside Antwerp. Peter Link to comment Share on other sites More sharing options...
charlie_pank Posted February 26, 2013 Share Posted February 26, 2013 I think Biggred do it for about £35 on an exchange basis... Link to comment Share on other sites More sharing options...
Sandboy Posted February 26, 2013 Author Share Posted February 26, 2013 popped the pistons out with hydraulic pump and they're servicable and the real issue was the slider pins, not been kept sufficiently lub'd by moi - caliper and hanger blasted up nicley so seals kit, slider and bolts kit, silicone grease sachets ordered from bigred, £55 inc 1st class post, great service - back on car this weekend. Don't let fear of the unknown hold you back! Link to comment Share on other sites More sharing options...
ECR Posted February 26, 2013 Share Posted February 26, 2013 Link to comment Share on other sites More sharing options...
elie boone Posted February 26, 2013 Share Posted February 26, 2013 Sandboy, are the protecting rubbers missing from the slider pins ? if not it's really strange they sized up Peter, i am in Denderleeuw about 17km west to Brussels Link to comment Share on other sites More sharing options...
Titanium7 Posted February 26, 2013 Share Posted February 26, 2013 New original ones here Link to comment Share on other sites More sharing options...
Sandboy Posted February 26, 2013 Author Share Posted February 26, 2013 Elie, slider rubbers all present and correct but pins still siezed in, but then rear brakes not had any maintenance other than check for paid wear or seal damage in 10 years, lesson learnt and annual lubing added to maintenance list. T7, if I screw up overhaul good to know price of new ones is dropping. Link to comment Share on other sites More sharing options...
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