Cokekid Posted March 17, 2021 Share Posted March 17, 2021 I am in the process of rebuilding the left wheel cylinder. When I removed then cylinder to dissembled it, the parts on the right came out. The new part came in the box, but I noticed there was a round metal piece on the left that was not there. The parts list doesn't show the round metal piece. Which part is correct.? Gerry Link to comment Share on other sites More sharing options...
Cokekid Posted March 18, 2021 Author Share Posted March 18, 2021 I phoned Chris at Boos-Herrel and asked about why the cylinder I removed had this round metal disk in it and the rebuilding kit never had one . He was not aware of why there was a metal disk in the cylinder. I am going to install the kit I bought and assume the end of the spring is wider as it just replaces the disk. Link to comment Share on other sites More sharing options...
40ZephSedan Posted March 19, 2021 Share Posted March 19, 2021 Gerry, I have never seen the metal disk in any old or new brake cylinders I have worked on. I have seen the larger diameter springs on some newer model cars, but not sure why the design is different or what the advantage is verses the old style springs. A local brake or repair shop, or the supplier that sold you the brake kit might have insight. Regarding the rest the assembly, being overly cautious-since the photo doesn't show all the new parts in the rebuild kit, your new kit does include new 2202 rubber seals in front of new 2198 metal pistons, correct? Paul Link to comment Share on other sites More sharing options...
Cokekid Posted March 20, 2021 Author Share Posted March 20, 2021 40ZephSedan Here is a photo of the complete kit I bought at one of our Lincoln swap meets. Link to comment Share on other sites More sharing options...
Cokekid Posted March 20, 2021 Author Share Posted March 20, 2021 Just removed the right Wheel Cylinder and this is what came out. Two round metal disks. Maybe there was another kit that could be used,and this is it. Link to comment Share on other sites More sharing options...
Russcc Posted May 4, 2021 Share Posted May 4, 2021 Those discs are called expanders.. When a wheel cylinder is honed during rebuild, the expander fits inside the cup to aid in sealing against the bore of the wheel cylinder. Link to comment Share on other sites More sharing options...
Cokekid Posted May 6, 2021 Author Share Posted May 6, 2021 Russcc Once again thanks for the info. Link to comment Share on other sites More sharing options...
pwlovely Posted June 12, 2021 Share Posted June 12, 2021 I replaced the front wheel cylinders on my 47 Lincoln 76H convertible and found them to be cylinders for a 1947-1949 heavy duty truck, which I had to stick with because the connectors, 3/8 24 thread, would not work with the standard Lincoln replacement part. For $16.95 each, better to replace than rebuild. Link to comment Share on other sites More sharing options...
Cokekid Posted June 14, 2021 Author Share Posted June 14, 2021 pwlovely Very interesting. I used the same rebuild parts to match the parts I took out. Link to comment Share on other sites More sharing options...
47clubcoup Posted July 31, 2021 Share Posted July 31, 2021 im not sure but JERRY RIG works some times to get the job done. go to cuba and you will see JR you aint never seen be for in all there cars. Link to comment Share on other sites More sharing options...
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