[TR] TR-3 steering self centering

[wbeech at flash.net]

I have installed the delrin pins (silentblocks) so this is probably
contributing somewhat to the issue.  Many say it is the zero castor angle,
as does my front-end guy.

Many thanks to all who contributed on this subject.  Short of substituting
TR4 parts I guess this is the way it will be.

Bill 

Bill Beecher
'58 TR3A TS30766L "Tarbaby"
www.triumphowners.com/1566
'68 Land Rover Series IIa 88" "The Beast"
"Hello, my name is Bill and I own an old British car.  Now...What are the
next 11 steps?"


-----Original Message-----
From: triumphs-bounces at autox.team.net
[mailto:triumphs-bounces at autox.team.net] On Behalf Of Greg Solow
Sent: Thursday, April 05, 2012 1:19 AM
To: triumphs at autox.team.net
Subject: [TR] TR-3 steering self centering

A large part of the self centering action of a TR-3 comes from the torsion
in the drag link pins. These are the bonded rubber sleeves and studs that
press into the holes in the drag link and attach to the steering box pitman
arm and the idler arm. They consist of a center pin and a steel sleeve. The
pin is in the center of the sleeve and is attached to it by bonded rubber. 
When the steering linkage is assembled, everything is tightened down with
the steering in the straight ahead position. As the steering is turned away
from straight ahead to either side,  the rubber that is bonded to the sleeve
on the outside and the pin on the inside is supposed to "twist". The tension
generated in the rubber wants to "untwist" itself and thereby wants to bring
the steering back to straight ahead where there is no longer any "twisting" 
tension in the rubber.  Of course if the rubber in the space between the pin
and the sleeve comes "unbonded" from either, all of this action is lost! 
The pins do not last to long in there original "bonded"  condition. They
have a tendency to fail somewhat quickly.  Some of the reproduced stuff is
better than other.
 

                Greg Solow
 

                The Engine Room
 

                Santa Cruz, Ca. 

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