The intermittent pedal behaviour sure sounds like a failing master
cylinder. The MC can fail without losing fluid. If it were me, I'd
remove instrument cluster, nuts holding MC to booster, then shift MC
back and inspect if any brake fluid has leaked out of MC. I'm fairly
certain the O ring between MC and booster would reseal well enough (if
not tainted with brake fluid).

As you likely know, removal-reinstall of the cluster can potentially
introduce electrical issues but that's more of a "heads up" than
anything. i.e. condition of ribbon and plastic likely depends on how
much heat (sun) its seen etc.

Neil.

On 11/19/16, Eric Wunrow <VW@ericwunrow.com> wrote:

> The problem started the instant the bearings were replaced, so must be
> related to that process somehow. The only thing I can figure is when
> removing the caliper a brake line end could have been compromised… but yet,
> we are losing no fluid at all.
>
> Thanks,
>
>    Eric
>    Eric Wunrow Pictures
>    303. 988. 8717
>
>    VW@EricWunrow.com (for this list's emails)
>    EW@EricWunrow.com (for private messages)
>
>
>
> On Nov 19, 2016, at 3:31 PM, Neil N <musomuso@gmail.com> wrote:
>
>> What colour was the brake fluid that was bled out? Master cylinder
>> finally failed ......

>> On 11/19/16, Eric Wunrow <VW@ericwunrow.com> wrote:

>>> .... We just bled the brakes as
>>> per
>>> the manual, RR first, LR second, RF third, LF last. Lots of air in there
>>> from a quite-baffling source. After bleeding the pedal was nice and stiff
>>> as
>>> a board. When I fired it up, the pedal goes a little softer but I think
>>> this
>>> is normal. First time on out road test the brakes went to the floor
>>> again.

-- 
Neil n

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