[T3] cooling fan engineering

[Bobsnotch at aol.com]

In a message dated 4/26/2014 12:00:22 P.M. Eastern Daylight Time,  
jadney at vwtype3.org writes:
 
If you mount the fan on a crank and then put the crank in a vise,  you 
can wiggle it around and see the movement. I suspect the rubber  
bushings are in there to absorb vibrational energy, so the fan acts 
as  a vibration damper.


 
Yes, this is exactly what's going on. Russ told us in the Samba t-3  forum, 
that the large cooling fan was also a vibration dampener. He also  
recommended not welding it, as you disable that feature. It's better to find  
another fan. 
That said, I'm willing to bet you could "repack" the rubber with 3M  
urethane (window weld), and put it back in service.
 
Without actually seeing Dave's fan, I'm guessing the rubber has  started 
cracking loose. Just a thought. ;-)


Bob 65  Notch S w/Sunroof and IRS aka Krusty
64 T-34 Ghia aka Wolfie
71  Square-vert under  construction


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