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Re: [Healeys] Steering box shims and adjustment

To: steveg@abrazosdata.com, healeys@autox.team.net
Subject: Re: [Healeys] Steering box shims and adjustment
From: Warthodson@aol.com
Date: Tue, 17 Mar 2009 09:35:58 EDT
The original worms were machined to have a slight tight spot at or near  
center (I.E. straight ahead), when the peg is correctly adjusted. In my  
experience, this tight spot is often NOT worn away. To check for this, jack the 
 front 
of the car off the ground & turn the wheel left & right. If the  peg is 
tightened adequately you will feel the tight spot.  If this is  the case, then 
tightening the peg off center will result in it being too tight  when driving 
straight ahead.
Improper shimming, which is very difficult to do properly with the steering  
box in place, is often the cause of excess play in the steering, along with 
worn  bushings in the steering box & idler box & worn tie rod ends.
Over tightening the peg will cause very stiff steering, will speed up wear  
of the worm & will not compensate for worn parts or incorrect  shimming.
Gary Hodson  
 
 
In a message dated 3/16/2009 2:22:14 P.M. Central Daylight Time,  
steveg@abrazosdata.com writes:
 
Have  some comments on the steering adjustment:

Healeys use Worm-and-Peg  steering. This is an obsolete 1930s system that 
wears in the center position  as you drive down the road. 

Therefore it is not possible to adjust a  worn box with the steering wheel on 
center. You need to turn the wheel to one  side, then adjust there. 

Moss sells replacement pegs and Denis Welch  sells replacment worms 
(expensive).

If you remove the tie rods from the  steering arm, you can move the arm back 
and forth by hand and feel when it  rubs on the adjuster nut. It is possible 
to turn the adjuster nut by hand to  feel it _just_ start to rub with the arm 
off to one side. That is a good  position in which to tighten the locknut. I 
did this on the bench as part of a  bush replacement and it was really easy.

My car has received comments  on the tightness of her steering. :)

-- 
Steve Gerow
59  BN6
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