HELP '62 Bluebird 312 WHEEL Cylinders

[gtmule]

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.   

 

 

 

 

[metalmonkey47]

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

[Rays74]

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

[metalmonkey47]

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???

[gtmule]

Bit of both. I'll take it to work and measure the threads. Thanks guys!

[gtmule]

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).

[gtmule]

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.

[metalmonkey47]

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. 

[metalmonkey47]

Out of sheer curiosity, have you tried Nissan yet?? 

 

ORRRR

 

http://www.jdmlegends.com/?page_id=39

[Laecaon]

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...

[gtmule]

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.