Lube to silence blower squeal. ->another idea

[Russ Maki]

For what it's worth, the resident expert on mbz.org's diesel list, Marshall
Booth, recommends ATF to lubricate noisy blower bearings.

Russ Maki
Ixonia, Wis.





> From: "Fred Munro" <munrof at sympatico.ca>
> To: <quattro at audifans.com>, "Brian Devlin" <bdevlin at stanford.edu>
> Subject: Re: Lube to silence blower squeal. ->another idea
> Date: Fri, 8 Feb 2002 19:18:27 -0500
>
> Hi Brian;
>
> I did this with my '86 5ktq. I drilled a 1/2" hole in the heater box just
> above the drive side bearing, inserted a piece of wire so that it sat on
the
> shaft just in front of the bearing, and ran drops of liquid (not spray)
> WD-40 down the wire onto the shaft. It worked for a little while but I
ended
> up changing the fan motor anyway. I used a plastic body plug to seal up
the
> hole afterwards.
> I think the only long-term fix is to install a ball bearing in place of
the
> sleeve bearing on this motor. Usually by the time the motor is squeaking,
> the brushes are shot, so it's time to replace it or rebuild it completely.
>
> HTH
>
> Fred Munro
> '94 S4