Mystery dished washer in tandem master cylinder

J

J.Lackland

New Member
Just removed and dismantled the brake master cylinder in my 2200TC fitted with the dual circuit brake system. During dismantling a lone dished washer suddenly appeared. Stupidly I had failed to notice what part it had been attached to. I didn't see it until after removing the tipping valve for the primary fluid port, and withdrawn both the first and secondary plungers, but before dismantling the valve at the front of the secondary plunger.

In the picture it lies just above the tip of the little screwdriver, and no, it is not the washer at the tip of the secondary plunger, controlling the centre valve fluid port.
Help would be much appreciated, as I've quite obviously bungled the whole job.
IMG_0933.jpg IMG_0935.jpg
 
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The wave washer goes inside the nylon cup at the end of the secondary spring (in the area of "J" on the diagram). It has escaped because the seal rubber that the nylon cup surrounds has given up the ghost.

Yours
Vern
 
Thanks Vern!
Just to be on the safe side, I'd wonder if you could confirm that the washer you mention ISN'T the one marked H in the drawing below.
That washer I have managed to keep under control, as the secondary plunger wasn't dismantled when I discovered the loose one I'm worried about.
Your help is much appreciated! Johan

IMG_0936.jpg
 
Hello Vern! I seem to have set new world record in inattentiveness :rolleyes:
The washer in question was a part of the repair kit (bleeding obvious now), but being so small I must have missed it
when opening the package and checking the parts before dismantling the master cylinder.

It had probably stuck to one or other of the small seals and thus escaped my notice....
Many thanks for your effort! Tomorrow, I'll reassemble the cylinder, and hopefully
the brakes will get back to normal!

Johan
 
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