<VV> Arcing wires in the dark (Now arcing damper.)

[RoboMan91324 at aol.com]

Frank,
 
If the aluminized paint dries brittle or becomes brittle with  age, it is 
likely to crack across the gap where the inner and outer sections of  the damper 
move independently.  The arcing will start across the cracks in  the paint 
until the paint is eaten away and the same issue  remains.
 
Here is a poser for the gang ..... If the static electricity  in the outer 
ring of the damper travels to the inner ring and then goes to  ground through 
the crankshaft to the block, is it arcing from the crankshaft to  the bearings 
and causing long term damage?  I know that this sort of thing  is a failure 
mode in roller bearings.  Perhaps the engine oil is conductive  enough to pass 
the electrical charge through without arcing.  Perhaps the  large surface area 
between all of the bearings and the crank (plus the area of  the camshaft in 
proximity to the block) is sufficient to last the normal life of  the engine 
despite arcing.
 
Inquiring minds want to know.
 
Doc
 
60' Corvette, 61' Rampside, 62' Rampside, 64' Spyder coupe,  65' Greenbriar, 
66' Canadian Corsa Turbo Coupe, 67' Nova Super Sport, 68' Camaro  Ragtop

~~~~~~~~~~~~~~~
In a message dated 8/5/2008 6:05:28 P.M. Pacific Daylight Time,  
virtualvairs-request at corvair.org writes:

Message:  9
Date: Tue, 5 Aug 2008 19:53:31 EDT
From: FrankCB at aol.com
Subject:  Re: <VV> Arcing wires in the dark
To: dmonasterio at megared.net.mx,  chartzel at comcast.net,
virtualvairs at corvair.org
Message-ID:  <bfb.418110d9.35ca41fb at aol.com>
Content-Type: text/plain;  charset="US-ASCII"

Daniel,
Why not just run a few  stripes of  conductive paint (aluminum paint?) across 
the rubber  separator so that it  touches both the inner core and outer metal 
 parts?
Frank "likes easy to implement answers"   Burkhard


In a message dated 8/5/2008 7:15:25 P.M. Eastern Daylight  Time,  
_dmonasterio at megared.net.mx_ (mailto:dmonasterio at megared.net.mx)   writes:

Never  before thought on this fact which must happen on  dry weather only. 
The outer  part of the harmonic damper is isolated from  the engine body by the 
bonding  rubber and rubbing against the belt all  the time, acumulating static 
 electricity. If the outer portion of the  dampener becomes close enough (we 
know it happens) to the timing housing  the sparking will occur. Worst 
scenario: Dry weather + outer edge of  dampener  too close to engine + fuel pump 
leak... ????

Daniel  Monasterio
PS.  Will solder a small copper wire between both parts of  dampener in all 
my vairs... just in  case.




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