Re: Further question on vacuum pump

[dclose@Prepsat.com (dclose)]

Kirby Smith wrote:

>While lubricating the infamous vacuum pump push rod on my 1988 90q,...
>
>This shaft works against a spring...
>in order for rapping to occur, particularly at idle, a clearance gap
>would have to exist between the push rod and the shaft...

I wonder, considering almost all Audi vacuum pumps develop this problem
(including mine), has there been a TSB concerning it? Or an aftermarket
fix?

It would seem that either a slightly longer shaft or spring would eliminate
the gap and solve the problem. Or would that just destroy the pump
internals?

-Dave Close

P.S.: Solved my '88 80Q A/C problem. I had no current to the compressor
clutch. I unplugged the relay (under the steering column), plugged it back
in, and the A/C works great! (O.K. it cycles too often, every 10 seconds,
but it's a start).