Does anyone recognize this Master Cylinder?

[Dave-Brake-Mechanic]

Hello Forum Members. This is my first post here, so Hello! I don't have a Nissan anymore, but I had 510 when I was in my early twenties. Do I ever miss that car...

I would like to solicit your expertise in Japanese brake master cylinders. I am rebuilding a 1973 Triumph GT6 MkIII for my wife. Master cylinders are not available anymore. Some previous owner installed a Nabco master (photos attached) with a remote reservoir, which I know were used on many Datsun and Nissan products. I think it was a good move, but I received the car in February and although the brakes were fine before the journey from Dallas - it arrived in Canada in severe weather conditions (-30 F). The change in weather killed the brake seals in the car and brake fluid was everywhere.







It looks like an excellent MC and I would like to keep it, but I can't rebuild it until I identify it in order to purchase new parts. It is indicated NABCO, 7/8 (bore size for sure) and has all the inlets and outlets on the same side, same plane.

Please take a look and see if you can tell which car it was OEM equipment on. Any help you may provide will be a huge help. Feel free to offer any other advice in regards to rebuilding this master cylinder as you see fit.

Many thanks in advance...

David Landsberg
Ottawa, Ontario
Canada

[PapaSmurf2k3]

Welcome to NICO!
Greg (AZHitman) might be able to tell you what kind it is (if its from a Datsun), but if not, I would think you should be able to find some other NABCO master to just replace it with. Good luck!

[Dave-Brake-Mechanic]

Thanks PapaSmurf! I am hoping to get away with an MC rebuild. So one thing that would be helpul if I cannot ID the unit is to know how many cylinder rebuild kits apply to the 7/8 cylinder.

Best

D

[AZhitman]

Definitely not a Datsun unit. I suspect a rebuild kit for any Nabco unit with that bore size will work fine. 7/8" was pretty common. I'd start looking at early Z cars and pickups from the mid 70s.

[Dave-Brake-Mechanic]

Hi again:

Got the thing off today so I am posting some better pictures... Please have a look:







Best,

D

[AZhitman]

Dave - The 240sx (1995-1998) used a 7/8" master cylinder.

I've just spent some time searching for rebuild kits, and frankly, unless you want to retain the remote reservoir setup, I'd recommend just getting a rebuilt master cylinder for a 240sx.

Clearly, the previous owner installed something incorrect for the car, so originality won't be a concern.

Definitely not a Datsun / Nissan application though.

[Dave-Brake-Mechanic]

Thanks Greg! I'll check it out.

Best rgeards,