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[GMCnet] Line Lock [message #122004] Sat, 16 April 2011 09:38
paul h cashman is currently offline  paul h cashman   United States
Messages: 176
Registered: May 2005
Karma: 0
Senior Member
Gary,
I bought a new Combination with the Disc Brake Kit.
The problem occurred when I added the Line Lock.
Disc Brakes ,work OK with a P30 without the Line Lock ,the Brake fluid in
the rear returns to the Brake Piston ,when you release the Pedal ,no new
fluid is added to the brake lines from the reservoir.
With the Line Lock ,more fluid is added ,because you are pumping the pedal
to get, as much pressure, to be sure the Line Lock holds ,the added fluid is
the problem ,when the Line Lock is released ,the added fluid closes the
check Valves in the M/S. as the pressure moves forward.
Then as you drive the Coach and use the Brakes ,more fluid is Trapped and
the Brake Pedal gets so hard, you cannot push it down and you are stopped
,dead in the water.
Paul Cashman
Riverdale GA

Paul, Are you using the combination valve that is designed for use with disc
brakes? I have the Cadillac rear disc brake setup on my Royale with P30
master cylinder and line lock from Jim K. that works great. Never had a
problem.

Gary Bovee

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Paul H Cashman Riverdale Ga 1978 Transmode 1975 Corvette 1978 Beetle Convertible 1989 Harley Davidson Sportster
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