Wastegate Diaphragm Leak?

[Orin Eman]

> 
> I pumped my wastegate down to 15 in vacuum, after 2.5
> minutes (was shooting for 2 min but got distracted),
> it had lost almost exactly 1 in.  Doesn't seem like
> much to me, but is ANY leak too much?  Vehicle is '89
> 200.

That's fine.  You should go for as much vacuum as the
pump will give though.  With a bad diaphragm, you'll
be hard pressed to get any vacuum.

Orin.