5kCSQ Overboost problem

[quk@sievers.com (Phil Payne)]

In message <199609042225.SAA17368@urq.East.Sun.COM> Robert Houk - SMCC Bos Desktop Hardware writes:

> I connected directly to the big momma air port on the bottom of the
> waste gate. Would not hold (build up) any significant pressure, as fast
> as I could pump that stupid little hand pump. Connecting to the much
> smaller top (atmo) ref port, it held pressure/vacuum just fine.

Take a wastegate apart and you'll see it.  There is no practical attempt to gas 
seal the actuator rod between the exhaust and boost chambers.  The upper 
plenum, however, _should_ be gas-tight.

--
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club