compensating port

["Peter Engel" <peter.engel@xxxxxxxxxxx>]

Tim,

There are 2 holes at the bottom of the brake master cylinder fluid
reservoir.  The forward one is, I think, the compensating port.
The compensating port is uncovered when the piston retracts completely
(brake pedal released).  When the port is uncovered, brake fluid from
the wheel cylinders and lines can flow back into the reservoir, reducing
system pressure to zero.

Pete in PA


From: "Tim Hulse" <thulse@xxxxxxxxxx>
Subject: IML: Master cylinder
Date: Sun, 9 May 2004 23:15:41 -0700

Ok guys,
 The 1960 manual refers to a compensating port on the master cylinder.
The picture of the master cylinder only shows inlet port and outlet
port. Which one are they referring to. It says that could also cause a
hard pedal.

Thanks 
Tim 1960 Imperial