mart010 Posted August 14, 2023 Share Posted August 14, 2023 (edited) Hi, ordered a new master cylinder today. I’ve tried to get the old one running. Did renew the inside callipers and springs. But my job was not a good one. Everytime I tried to bleed my lines, after some time, the new calipers got stuck in the metal casing. My bad. So, ordered a new one today. Just out of curiosity, anybody know how to make an old, bit rusty, cylinder running again? What tools can be used to make the the wall on the inside smooth enough? thanks! Edited August 14, 2023 by mart010 Quote Link to comment Share on other sites More sharing options...
steve b Posted August 14, 2023 Share Posted August 14, 2023 Search for brake cylinder honing tools @Gazzar has just done just this on his 101 thread Steve 1 Quote Link to comment Share on other sites More sharing options...
Gazzar Posted August 14, 2023 Share Posted August 14, 2023 I bought a cheap version of this. 1 Quote Link to comment Share on other sites More sharing options...
hurbie Posted August 14, 2023 Share Posted August 14, 2023 https://www.hbm-machines.com/nl/p/hbm-3-arm-hoonapparaten 1 Quote Link to comment Share on other sites More sharing options...
mart010 Posted August 15, 2023 Author Share Posted August 15, 2023 Ok, did the honing. Smooth surface now. Also did the sides of the metal parts that go into the tube. Will see how it works after some time. will keep the new parts on the shelf for now Quote Link to comment Share on other sites More sharing options...
mart010 Posted August 21, 2023 Author Share Posted August 21, 2023 Update. The parts inside the master brake cylinder got stuck again. The new master cylinder and brake servo arrived just in time. Installed all parts and bled the lines. Perfect for now. Quote Link to comment Share on other sites More sharing options...
mart010 Posted August 21, 2023 Author Share Posted August 21, 2023 New parts 1 Quote Link to comment Share on other sites More sharing options...
johnseries Posted August 28, 2023 Share Posted August 28, 2023 Hello I have an 88" series that I have put a 200tdi in and 11" drum brakes front and back. I need to fit a new brake master cylinder would a NRC6096 be correct for this application. Quote Link to comment Share on other sites More sharing options...
steve b Posted August 28, 2023 Share Posted August 28, 2023 That is the dual circuit S3 master cyl. which will fit early servo (single circuit) too. Steve Quote Link to comment Share on other sites More sharing options...
johnseries Posted August 28, 2023 Share Posted August 28, 2023 Thanks Are you saying that this master cylinder will be correct for the larger 11" brakes. Quote Link to comment Share on other sites More sharing options...
steve b Posted August 28, 2023 Share Posted August 28, 2023 According to the factory parts book I have, that M/C is both 88 and 109, so yes Steve Quote Link to comment Share on other sites More sharing options...
johnseries Posted August 28, 2023 Share Posted August 28, 2023 Thanks Steve b Thanks Are you saying that this master cylinder will be correct for the larger 11" brakes. Quote Link to comment Share on other sites More sharing options...
JohnnoK Posted August 31, 2023 Share Posted August 31, 2023 The best for a cylinder will be having it bored out and a stainless steel liner fitted to it and then machine it to size again. Honing a corroded cylinder works for a while, but the seals never last long in my experience. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted August 31, 2023 Share Posted August 31, 2023 Or got to one of the re conditioners - like these guys: www.powertrackbrakes.co.uk which seems a better option that the aftermarket stuff - I had lots of problems with new cylinders being poor quality. Quote Link to comment Share on other sites More sharing options...
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