Re: '92 164L heater woes - There's a way

["Daegrigg (Don)" <daegrigg@domain.elided>]

Forgot to add,  duct tape will hold the cut out section in place and cover
the slot in the rotor area, too.   ----- Original Message -----
From: "Daegrigg (Don)" <daegrigg@domain.elided>
To: <dsedon@domain.elided>
Cc: <alfa@domain.elided>
Sent: Monday, January 27, 2003 4:12 PM
Subject: Re: '92 164L heater woes - There's a way


> Doug,
>
> Yes,  there is hope.  I just had to contend with this situation on my 91L.
> It's very cold outside so I did not look forward to actually R/R the
motor.
> Here is what I did - feel free to call me for details.
>
> Most of these fans are just stuck for want of lubrication or from wear on
> the shaft bushings or brushes.  You will need a Dremel tool or equivalent,
> a flat head screw driver,  contact cleaner, silicon spray lubricant.
>
> Remove the faux shroud aft of the firewall to get at the motor.  From the
> driver's side,  you will make two incisions into the "patient".  At the
> small end of the plastic housing (driver side), cut a half inch section
from
> the housing using the Dremel tool.  Sort of like cutting a section from a
> grapefruit. ( The motor parts are not right up against the cover so don't
> worry about damage there - be careful nonetheless. )  This will expose the
> brushes.  Second, make an incision about two inches long running fore and
> aft on the big end housing the fan blades.  Spray copious amounts of
contact
> cleaner in the brush/commutator area,  rotate the motor to expose the
entire
> commutator, using a screw driver to move the fan.  Spray the silicon
> lubricant on the end of the shaft exposed at the little end of the motor
> both inside and outside (use the tube extension on spray can to
concentrate
> the spray).  Start the fan on the highest setting.  Once it is running,
> spray additional contact cleaner  and lubricant in the same areas.  Stop
the
> fan and spray silicon lubricant in the fan housing.
>
> This should do it.  Mine will now run on all four speed.  It took 2-3 days
> of use before it was smooth again. During this period, always start the
fan
> on the highest setting.   I detected some noise about a month after the
> procedure; put in more lubricant and it  was quiet again.
>
> This is clearly not a permanent fix but it will get you heat (and cool)
> until you want to tackle R/R or the motor itself.
>
> Hope this helps,
>
> Don
> PS.  If you have to tackle the whole job try this great link:
> www.alfapro.com/html/aircon_blower.html
> ----- Original Message -----
> From: <dsedon@domain.elided>
> To: "alfa-digest" <alfa-digest@domain.elided>
> Sent: Monday, January 27, 2003 4:11 PM
> Subject: '92 164L heater woes
>
>
> > hi all,
> >
> > the hvac fan in our 196k-mile 164 sounds like hell.  squeal-city.
> >  that's when it works at all...  not enuff juice on speeds one & two to
> > even get it to spin.  any way to rectify this short of pulling out the
> > entire dash (or a/c)?  lube sufficient, or new/used fan in order?
> >
> > please email direct, as well as to the digest..
> >
> > tia,
> >
> > doug s.
> > --
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