[TR] Quik brake ? for TR3

[Randall]

> The only reason to use that valve was to satisfy the dual 
> system requirements. 

I disagree.  The valve Paul is talking about is actually a Residual Pressure
Valve; what it does is hold some pressure in the brake lines so that the
caliper pistons don't get pushed back when the front spindles flex.  Without
it, you may find a low brake pedal after a hard corner.

Worth noting that the factory built some 7000 disc-braked cars without the
RPV, and then added it.  Obviously they felt it was important even with
single-circuit brakes.

That said, I disabled my RPV many years ago and never regretted it.  And a
better solution to the spindle flex problem is available today, in the form
of uprated spindles and a bearing spacer; designed by the late uncle jack
(as I recall) and available from TRF.

But, I do not know the answer to Paul's question.  It boils down to whether
the 5-way union has the proper flare for a hard line to mate to the top
opening, rather than the gasketed fitting of the RPV.  The 5-way I checked
appears to be machined for a flare fitting; but ISTR I've seen one that was
not.

Much simpler, IMO, to do what I did : Remove the plunger from inside the RPV
and put back the housing.  That way there is no need to strain the lines to
reach, and no question about the fittings not being right.

Randall