gtmule Posted February 20, 2013 Report Share Posted February 20, 2013 Anyone recognize these? These are the front wheel cylinders off my 62 Bluebird wagon. The rears look to be identical to 510 rear wheel cylinders, but these fronts are a mystery. They're 5/8 diameter, held on with a stud/nut and the OD of the boss that the long banjo bolt (with bleeder in the end) screws into. If I can get them apart, maybe I can salvage them with some generic 5/8" seals. Quote Link to comment
metalmonkey47 Posted February 20, 2013 Report Share Posted February 20, 2013 Chuck, I.got your PM. These look to be identical to 620 from wheel cylinders, except they 620 is a 3/4 diameter. I'll see if I can get my hands on a new one at work and make some measurements Quote Link to comment
Rays74 Posted February 20, 2013 Report Share Posted February 20, 2013 MM beat me to it!! Those look like 520-521 13/16in front wheel cylinders........early 620 units are 3/4in but look identical as well. :) Rock auto pic http://www.rockauto.com/getimage/getimage.php?imagekey=313715&imageurl=http%3A//www.rockauto.com/info/Raybestos/WC37209-7.jpg Quote Link to comment
metalmonkey47 Posted February 20, 2013 Report Share Posted February 20, 2013 Looks like we got some options. Didn't even think about the 521. My listings show the 620 uses a M10x1 inlet thread and the 521 uses a 3/8-24. I wonder if that 312 is metric or standard??? Quote Link to comment
gtmule Posted February 20, 2013 Author Report Share Posted February 20, 2013 Bit of both. I'll take it to work and measure the threads. Thanks guys! Quote Link to comment
gtmule Posted February 20, 2013 Author Report Share Posted February 20, 2013 In the interest of trying to get hings here by this weekend, I went ahead and ordered: 2 620 front wheel cylinders and hoses (hopefully the connection to the hard line is the same) 2 510 rear wheel cylinders 1 620 rear hose (looked right, it was $3...whatever) 1 520 slave cylinder 1 620 (again, looked right, it was $9) clutch master cylinder All that, shipped, for $67. I'm used to buying airplane parts...this is great! The diameter on the front wheel cylinder is 3/4, mine are 5/8. This basically means I'll have too much front brake and maybe a softer pedal, I can probably live with it, if not, I can add a proportioning valve, but I suspect it won't be an issue (considering the "speed" I'll be operating at). Quote Link to comment
gtmule Posted February 23, 2013 Author Report Share Posted February 23, 2013 So....Fail. The rear cylinders were money, but the fronts were fail. The boss, the stud and the spacing between the two was bigger on the 610 truck parts than on mine, even thought they look almost identical. Any idea if the 521 stuff is different that the 620 stuff? Clutch master fits perfect. Quote Link to comment
metalmonkey47 Posted February 24, 2013 Report Share Posted February 24, 2013 Can you modify the backing plate to allow them to work??? I'm on my phone right now so I can't really check, but I think 521 and 620 were identical, or close. Quote Link to comment
metalmonkey47 Posted February 24, 2013 Report Share Posted February 24, 2013 Out of sheer curiosity, have you tried Nissan yet?? ORRRR http://www.jdmlegends.com/?page_id=39 Quote Link to comment
Laecaon Posted February 24, 2013 Report Share Posted February 24, 2013 What about a 410/411 cylinder? Or a roadster (1600/2000) one? Also, 510s had front drums in other markets, but not sure how to find those parts... Quote Link to comment
gtmule Posted February 24, 2013 Author Report Share Posted February 24, 2013 I can't find 410/411 cylinders anywhere....which leads me to believe they might be the same :) I got autozone to order me some 521 wheel cylinders; that way they're easy to return, and there's no shipping costs if they're the same as the 620's. I'd probably make new backing plates that would fit the 620 cylinders before I modified mine. I need to see if there's other differences (length, width, etc) that would make the 620's not work if I tried that route. The best option would probably be to find a set of Roadster, 411, 510 or similar spindles, rotors, calipers, etc....I bet it's a bolt on. If I get that desperate, I might ask someone to take measurements for me. Quote Link to comment
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