<VV> '65 Corvair heater "FAN" motor shaft keyed?

Jay Maechtlen jaysplace at laserpubs.com
Tue Dec 9 17:28:41 EST 2014


On 12/9/2014 12:06 PM, J. R. Read via VirtualVairs wrote:
> Charlie,
>
> The piece you are describing as having a "keyed hole" which fits the 
> flat on the shaft from the motor is the same piece that I called the 
> "metal center piece" and has ALSO been called the "hub".  It is a part 
> of the fan or "squirrel cage".
>
> Since (as you describe) it is "keyed" to the shaft from the motor, it 
> is going to spin at the same speed as the motor.  However, since it is 
> merely crimped to the REST of the squirrel cage, over time the crimp 
> fails and allows the fan to move slower than the motor - creating the 
> squeal that you hear emanating from the heater area.
>

ok - if you can get the hub off the shaft, how about brazing the hub to 
the fan body?
That should handle it.
Maybe re-stake it first, and make sure the fan doesn't wobble on the shaft.

-- 
Jay Maechtlen SoCal '61 2-dr modified w/fiberglass skin, transverse 3.8 
Buick V6 TH440T4 trans


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