Master Cylinder Right Side up

List:

I intended to spend Saturday morning disassembling the Tandem Master Brake Cylinder. However, I was stopped before I started with a problem.

For purposes of this discussion, I am referring to figure 14 from page L. 15 (page 333) of the official Jaguar Service Manual. The part numbers I reference below are from that drawing which I have included with this post.

I removed the Master cylinder from the car and removed the Cover (5), Tipping Valve (2) and Tipping Valve Nut (3). My intention today was to remove all of the moving parts (8-18) by removing the Gland Seal (8). I assumed it was a rubber gasket, and once removed, parts 9-18 would slide out. But on close examination, it seems that the Gland Seal is steel, which I guess is held in place by friction?

I am uncertain how to proceed.

Thanks

Lou