<VV> Unbalanced wheel ?...no !

[Mark Durham]

Daniel, an interesting fix! I have a pbm similar and will check that
out. Mark Durham

Sent from my Windows Phone
From: Daniel Monasterio
Sent: 11/22/2011 1:24 PM
To: CORVANATICS; VirtualVairs
Subject: <VV> Unbalanced wheel ?...no !

As a part of the restoration of the Bluebrier, got new tires and got
them balanced but, on the trip to Denver's convention, noticed
vibration on the right rear wheel just over 60mph so, kept the speed
at no more than 60mph all the time which was (I think) good for the
engine (still breaking it) and for safety.
As I am planning a trip, next weekend, I went to the tire shop to
check that wheel balance but, the machine said it was ok so, as there
are not any more old fashioned tools for wheels balancing (the kind
where tires are checked on the vehicle), came back to the cave to
start working on the problem.
1st, jacked up the offending tire, removed it and installed the front
right tire which I knew is well balanced.2nd, started engine, put in
drive and accelerated..... same vibration so, the wheel & tire
assembly was not guilty.3rd, removed tire, put nuts to hold the brake
drum and repeat testing..... same vibration.4th, removed drum,
repeated testing procedure and... no vibration.5th, inspected drum
and, it is not GM but Century brand without any weight welded as
always seen on GM drums.6th, got a used GM drum and tested with tire
in place and... eureka !!, no more vibration.
This the first time in 43 years dealing with Corvairs that I found
this kind of problem.
By now, the Bluebrier is better tuned and ready for traveling again.
Saludos
Daniel Monasterio


 		 	   		
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