There are hose clamps and there are hoses that collapse internally. The two
seem to be connected.
If you have a look at a brake hose - they have quite a thick wall - and then
squash it enough for it to resist a flow of pressurised brake fluid (that's
you pressing the brakes!) you will see the inner lining of the hose has
undergone quite a transformation in shape and has started its journey to
laminar separation and eventual collapse.
Yes, they make and sell various devices to do this but imho all of them
have a strong potential for causing unseen damage to a life preserving
system. I do not use brake hose clamps.
If you want to block off part of a brake system, try making up various pipe
connections with a short length of pipe running through them and squash and
fold the short length of pipe in a vice. They are also handy for checking
you've got the right thread. Alternatively, wire - clamp - ratchet strap
the shoes closed in situe and that produces the same effect and checks your
slave cylinder rubbers for leakage as well.
Jess does have a problem on his hands and I believe he has to go right back
to basics to find out what the DPO has done. I strongly suspect there has
been a problem with the m/cyl as the DPO would have no reason to remove the
clutch and brake output lines together - other than to play with or remove
the m/cyl. This could have resulted in a re-build that isn't quite right.
Guy R Day
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