That's an interesting tale. Years ago when the Goldbrick's AC system
was converted to R134, the evaporator was discovered to be clogged with
black substance like rubber or tar. Neither the shop guys or a I could
figure out what had happened. It was replaced with a new evaporator
(later the R134 was removed and Duracool put in, which is what it runs
today). The AC on the Goldbrick (86 passenger syncro) is awesome in its
cooling capabilities.

On Jul 13, 2005, at 10:39 PM, Stan Wilder wrote:

>
> I got a fair amount of rubber particles about the size of coffee
> grounds but
> soft and then some general discolored fluid containing the system oil.
> After flushing through several times in both directions the flow of the
> system was much improved and continued air flow pushed out the
> remainder of
> the Mineral Spirits.