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MG MGB Technical - Brake cylinder seal orientation


I'm rebuilding my brake cylinders and would appreciate some help on the orientation of the seals. These are conical like though their axes. What I want to know is, is the side with the greater diameter positioned inner or outer most in the cylinder? This is critical to the safe and effective operation of the brakes.

Many thanks,
Brian
Brian McIlvenna

Hi Brian

The larger diameter is against the fluid.

When the seal is in the cylinder a cup shape is formed. The fluid is in the cup.

You are correct is saying that this is critical.

Cheers
Ian F
Ian Fraser

Ian,

many thanks. This is what I suspected but did need verification.

Best Regards,
Brian
Brian McIlvenna

And the seals would go in far too easily the other way round. They're a pain to put in. It wouldn't be a real job otherwise.

Mike
Mike Standring

This thread was discussed on 15/09/2004

MG MGB Technical index

This thread is from the archive. The Live MG MGB Technical BBS is active now.