[T3] type3-vwtype3.org Digest, Vol 2, Issue 31

Tim Keohane rheorojo at wildblue.net
Tue Nov 30 10:02:09 PST 2010


On TueNov30, 2010, at 3:13 AM, type3-vwtype3.org-request at lists.vwtype3.org 
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Today's Topics:

   1. Re: Fan motor (Jim Adney)
   2. Re: My Car Has Cancer. (Jim Adney)
   3. Re: My Car Has Cancer. (Dave Hall)
   4. Re: Voltage (Adriel Rowley)
   5. Re: My Car Has Cancer. (Mike Fisher)
   6. Re: Voltage (Jim Adney)
   7. Re: Voltage (Bobsnotch at aol.com)
   8. Re: Voltage (Adriel Rowley)
   9. Re: Voltage (Adriel Rowley)
  10. Re: Voltage (Jim Adney)
  11. Re: My Car Has Cancer. (Marklist)
  12. Re: Voltage (Dave Hall)
  13. Re: Voltage (Dave Hall)


----------------------------------------------------------------------

Message: 1
Date: Mon, 29 Nov 2010 17:17:48 -0600
From: "Jim Adney" <jadney at vwtype3.org>
To: type3 at vwtype3.org
Subject: Re: [T3] Fan motor
Message-ID: <4CF3E03C.27387.16CE5B at jadney.vwtype3.org>
Content-Type: text/plain; charset=US-ASCII

On 29 Nov 2010 at 9:56, Tim Keohane wrote:

> I removed my fresh air housing and fan, to reseal the housing and
> lubricate the bearings. What I found was the blades on start up make
> contact (ever so slightly) with the housing, until they generate
> enough speed ( a few seconds ) then they self center, and the noise/
> squeal stops.

I don't think I've seen this problem before. Can you tell what
exactly the fan is hitting? Is it hitting something outside the fan
or something inside the fan?

-- 
*******************************
Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
*******************************
The fan blades are located in a venturi/throat/nozzle arrangement.  
With the fan out I powered the unit and watched the blades as the  
lower portion of the throat is scuffed/abraded. I can manually move  
the fan blades ever so slightly (less than .01") and the contact  
ceases. I suppose the "squeal" could still be the bearings, sounds  
like bearings, but I suspect the fan starting under load  will be more  
prone to failure down the road ( because of the contact ). I inverted  
the fan and started it up and I have no noise. Still could be  
bearings. A few drops of oil won't hurt.

When re-sealing the fan housing in the fresh air housing, I used some  
self adhesive foam door seal from Home Depot.



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