[s-cars] P/S flushing procedure

[KBATTPO]

Kirby Smith wrote:
>
> It takes about 20 seconds (not recently timed) for my light to go out
> after the car has sat for a few days.  The bomb is clearly leaking down,
> and yours is leaking down faster.  There are two leak points, the check
> valve in the bomb, and some part of the power brake assembly.  The
> latter can be checked by unscrewing a line at the top of the booster
> (see the Bentley for details -- mine didn't seem to be weeping there).
> I think in my case it is the bomb check valve.
>
> When I purchased my car the light took a long time, but after cleaning
> the screen many times, replacing the filter bolts (could be cleaned by
> hand I think) and the high pressure hose with its inaccessible mid-point
> filter, the time is now fairly quick, and determined mainly by how long
> the pump itself can fill the bomb.  As my bomb takes nearly 40 pumps to
> unload, I have been loath to replace it to potentially zero the leakage.
>
> Igor, I think in your case you may have a restriction in the pump flow,
> but certainly have a bad check valve.  If the bomb drains down quickly,
> the pump is unlikely to fill it instantly.

OK, folks. I didn't have the whole picture when I wrote my last post on
the subject.
The car has sat for 48 hours in the garage. I started it up this
morning. The light did not even come on(!), that's how fast the pump
charged the system after the complete flush of the whole sys and
cleaning of the mesh screen. The car has neve perfomed this well since
the day I bought it! Evidently my favourite dealer did not flush the
sistem neither when he did the pump replacement, nor when he did the
bomb replacement, both under warranty and both about a year ago. I was
completely convinced that the sys had been flushed per my request and
since the light stayed on for 40 seconds I figured that notheing could
be done.

Now I am about to start preaching on this list:
FLUSH THE SYS YEARLY, FLUSH THE SYS YEARLY, FLUSH ...
:)

Igor Kessel