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Re: [oletrucks] harmonic balancer

To: <oletrucks@autox.team.net>
Subject: Re: [oletrucks] harmonic balancer
From: "Allen L. Jones" <ALJ@hartcrowser.com>
Date: Wed, 08 Sep 1999 09:16:18 -0700
I've heard old harmonic balancers can let loose when the rubber deteriorates 
(kind of like an original fan blade releasing...).  Maybe your harmonic 
balancer is just plain wore out.?.?  Take off the belt, grab the pulley (to the 
extent you can) and see if there is excessive play.  If so, time for a new one 
or reconditioning.

As an aside, when I redid my 261 inline, I installed a Pontiac harmonic 
balancer.  It was about the same price as reconditioning an original harmonic 
balancer, supposedly has better dampening characteristics, looks good, and has 
two pulley grooves (in case I want to add power steering or AC down the road).  
The Pontiac balancer does require slight machining to work on the crank (the 
third grove is cut off and the back side is shaved back).

Good luck!

Allen in Seattle
'50 3100

>>> "Joe Clark" <jclark1@utk.edu> 09/08/99 05:58AM >>>
Two questions for the group:
Does anyone have a good method for adjusting the mixture on a 
Rochester B carb?  I've used a vacuum gauge as the book 
suggests but when I open up the mixture, the vacuum increases 
slightly but then stays the same no matter how far you loosen it 
(21 psi).  Where in that range should I stop?

Also, I have a little front-to-rear wobble in my harmonic balancer 
(about 1/4 inch).  The radiator is already installed and it's kind of 
hard to get to so I was wondering if I should leave well enough 
alone or take it off and try to re-mount it.  The engine times out well 
and runs great otherwise so I don't think the crankshaft is bent.???
Thanks in advance,
Joe

Joe Clark
Southern Appalachian Field Laboratory
USGS/Biological Resources Division
Knoxville, Tennessee
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959

oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959

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