Be that as it may, I've got a bugeye with a umpteen miles done with a small
hole in the metal-can-cup. Works great. I've got three daily driver LBCs
with the Morris style in-the-frame-leg master cylinders (the A35 is like the
Moggies), and all have discs fitted with the same modification to the little
rubber cup. All work great. My wife's Traveler had dragging brakes until I
put the little hole in the cup and all is now excellent. I sure hope I
don't get debris in the MC big enought to block ANY size hole.
Best,
Glen
> That's actually incorrect Glen.
>
> A residual valve should not be used with disc brakes. There is a
> different valve used with the disc brake kits.
>
> see: http://brakecylinder.com/images/LockheedSprings.jpg
>
> The plastic valve on the right are the ones that should be used. This is
> more of a "retarding valve" rather than a residual valve. The metal cup
> style on the left needs to have the rubber insert left out. I suppose
> your hole in the rubber cup could serve the same purpose, but I would be
> concerned that before long, that hole will become easily obstructed with
> debris.
>
> In addition, it is also necessary to do something different when using
> the disc brake conversion on the Morris Minor. Separate external residual
> valves should be used for front and rear because of the position of the
> master cylinder. With the master cylinder being lower than the calipers,
> you need to prevent fluid drain-back by using a 2 lb residual valve in
> the main line to the front branch. I use a 10lb residual valve to the
> rear drums.
>
> Gerard
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