[V8] Blower Motor cleansing

[Kneale Brownson]

Intermittancy is the sign the blower motor is failing.   Your best solution
is to plan on replacing it.  You can "limp along" with the blower motor for
awhile, but eventually it fails altogether.  Most of the time it's the
motor bearing surfaces wearing out.  I've taken two Audi blower motors into
a Bosch motor service place after replacing them, and have been told both
were beyone repairing because of the wear.

If you examine the driver side of the heater core housing, up near the
front (engine end) there is a small L-shaped rubber hose that takes air
from the part of the housing that covers the fan to the back of the part of
the housing that covers the fan motor.  The fan is a squirrel cage, the
motor is a smaller tubular shape.  Both ends of the rubber hose are
grommet-shaped flares that seal into their respective parts of the
housings.  If you disengage the end at the motor covering, you can swing it
up and not need to disengage at the blower end.  

There is a photo of an upside-down heater core box on Chris Miller's
200q20v website:
http://members.aol.com/c1j1miller/drivers-side-heater-box.jpg  that has
some printing over where the hose would be.  The printing refers to the
device that retains the blower motor in its housing.  The printing obscures
where the hose probably was in the photo, but since the hose is black and
the housing is black and the photo isn't all that sharp in that area of the
image, the printing pretty much hides the hose if it ever was visible.

Remember that whatever you spray in there is going to smell up the cabin.
I kept mine going over a winter by spraying occasionally with a penetrating
oil that included some teflon.  The odor wasn't all that bad, but it would
hang around for at least a week.  

At 06:51 PM 5/29/2004 -0400, Roy Hall wrote:
>The Blower motor for my 91 - V8 has started to run erratically.  This 
>car is my daily driver and performs flawlessly however now that summer 
>is coming I need the AC.  I have read the archives and seen where some 
>have been able to "clean" the brushes with electric cleaner.  My 
>problem is now that I have removed the cowl and am looking at the 
>blower motor - through all sorts of ac lines and electric cables and 
>the wiper motor.  I don't see how to reach the motor nor do I see the 
>breather tube that needs to be removed.   Anybody BTDT or have any 
>pictures.  I also read of sending some lube into the air intake.
>Any and all suggestions would be appreciated.