CSP master cylinder adapters- disk brake kit

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Elibomrod68

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Hi,

Has anyone fitted the CSP disc brake kit to their bus? Doing it at the moment...

Ideally want to keep existing master cylinder and so been told need to remove the residual pressure valve from the outlets.
CSP do a plain adapter 12x1 to 10x1 and advise need two...also theses are available on the Coolair website.

Question is don't I need three? or do just fit two on the front outlets leaving a residual pressure valve on the rear circuit?

Cheers Si
 
The residual pressure valves keep a wee bit of pressure in the lines from the master cylinder and the wheels, to balance out the force of the shoe springs*, which are trying to force fluid back up the lines into the master cylinder. So you take them off when you're fitting disc brakes, as they don't have those springs. This is why you take the valve off the port for the fronts, and not for the rears.

*there are residual pressure valves for disc brakes, but they're not really relevant here. They're more to do with applications where the fluid reservoir is lower down than the caliper, and they tend to overcome gravity more than anything else.
 

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