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Re: Turbo after-run pump

The whole thing seized on mine - couldn't ever turn the impellor with a
lever, used so much force that the impellor blades gave up before anything

Jim Haseltine
----- Original Message -----
From: Phil Payne <quk@isham-research.demon.co.uk>
To: <quattro@audifans.com>
Sent: Monday, October 25, 1999 10:20 PM
Subject: Turbo after-run pump

> First of all - on the MB and my MC-2 engines, it's not an after-run
> pump - it runs all the time.
> Second - you can't meaningfully test it in circuit.  You can hear it
> hum - but the most common failure mode is the impellor separating
> from the motor shaft.  It hums away all day but no water moves.
> You have to take it off the car and watch the impellor when you apply
> volts.
> --
>  Phil Payne
>  UK Audi quattro Owners Club
>  Phone: 07785 302803   Fax: 0870 0883933