Conference ssdevo::4wd

I've got a 1993 F150 (Supercab, 351 Windsor, 4 speed automatic) with a very
noisy heater fan.  The best I can describe it is that it howls and/or whines --
sounds like the fan is rubbing against the casing.

Is the fan something easy to get at and remove and repair and/or replace, or is
this one of those projects akin to having to pull the engine in order to empty
the ash tray?

If it's relatively easy, does anyone have any hints?

                               Roger

    I have the same problem with my f-250 (1992).. I've had it out once
    and managed to quiet it down for about 1 month.... on the f-250 the 
    blower comes out through the engine compartment. 4 screws, unplug the
    harnest and out it comes, real easy.. the hard part is parting with
    the money to buy a new one.. :^)
    
    
    JJ
    

Re: <<< Note 826.89 by KISMIF::KISMIF::JEMIOLO >>>

>>                                          the hard part is parting with
>>    the money to buy a new one.. :^)

Do you have a ballpark figure?

    re. .88
    
    FIX it or REPLACE it!  Any motor that binds up is a potential fire 
    hazard if allowed to overheat. 
    
    A boneyard unit is cheaper if you can find one.
    
    You can also potentially `rescue' the one you have REEEL CHEEP with 
    a little time investment if it hasn't been squawking for too long.
    
    1. Mark the "UP" position of the blower & motor assy. by scratching
       a mark or with white chalk.
    2. Remove the assembly and bench it.
    3. find the no-load-end bearing housing bump in the center of
       the non-fan end of the motor housing. 
    4  Make a small hole in the end or top side of the bearing bump by
       PUNCHING, NOT DRILLING it.  
    5  Use a sharp instrument (struck by a hammer) to achieve the initial
       penetration and hole, and a very pointed nail set punch to enlarge
       it as required.
    6. Make the hole large enough to inject oil with an oil can or
       via a paper clip dipped in the oil. 
    7. Fashion a tiny rubber plug for the hole out of a small scrap cut
       from a rubber hose, inner tube, soft mechanical pencil eraser etc.
    8. Apply 5-10 drops of lubricant while rotating the fan assy. by hand
       to work it in and re-plug the hole.
    9. Locate the load-end-bearing at the base of the motor shaft where
       it enters the motor housing and apply lubricant at that point
       several drops at a time till the fan feels free and rotates easily.
    
      RECOMMENDED LUBRICANTS:
    	- Slick 50 "One Lube"
        - Any "MOLY" motor oil additive
         (contains Molybdenum Disulfide)
    	- "Mobil-1" or ANY 100% synthetic Motor Oil
    	- Automatic Transmission Fluid (Dexron II)
    
      Don't use penetrating oils like "All-In-One", "WD40", "Liquid
    Wrench" etc.  They penetrate great, but they're lousy long term
    lubricants for this type of application and the penetrants tend to
    `eat' the lacquer insulation on your motor's windings potentially
    shorting them out.
    
      Good Luck,
    
      John