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Old 07-06-2023, 08:16 AM   #4
Toro
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Join Date: Nov 2018
Location: Huntsville, AL
Posts: 341
Re: Does this new master cylinder look correct?

Quote:
Originally Posted by Sheepdip View Post
I don't believe the one you pulled off is the original, your new replacement would be more like the original. Those double big potted reservoir M/C's back then were referred to as a Corvette M/C because of the front and rear disc brakes.

The larger pot is for the front disc and the smaller for the rear drums. Disc brakes as they wear move outward and keep fluid in the caliper piston bores, rear drums have automatic adjusters and return springs so piston movement is minimal and less fluid required.

My hunch on the bolt is it holds the plunger in....just a SWAG.
Okay, thanks. So, if this one isn't original, do you know what the correct bore depth for power brakes should be? If it was replaced before with a different type, I just want to be sure the new one is correct. The new and old both measure about 1 3/4" from deepest point back to rear edge of bore. Thanks again.
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