Chip - Worm and sector steering boxes often have some play built into the
system when the gears are at sharp steering angles. This way, since most of
the wear occurs at straight angles, the lash adjustment won't cause binding
when you steer into corners but can reduce backlash where you don't want it
which is in the straight ahead position. If you over-adjust the lash screw,
you will find the steering is much better when driving straight ahead but
corners will terrify you when the steering wheel won't self-center. That
means the sector or worm shaft is worn. Hopefully that makes sense. So much
for that type of steering box.
Looking at the Big Brown Book for TR-6 repair, I see a shim pack that can
adjust for end play of the pinion and there is also a steering rack damper
that helps to snub side-to-side play of the rack. In this case, side-to side
movement is perpendicular to the rack, not parallel. That is also adjusted
with shim packs. Not sure how similar a TR-4 is. I'm sure more knowledgeable
folks will reply.
Alex Thomson
-----Original Message-----
From: triumphs-bounces@autox.team.net
[mailto:triumphs-bounces@autox.team.net] On Behalf Of Chip19474@aol.com
Sent: Tuesday, October 23, 2012 4:37 PM
To: allenhess@mgcarclub.com; triumphs@autox.team.net
Subject: Re: [TR] Early TR4 Steering Rack Question
The play is noticeable when the wheels are off the ground and I turn the
steering wheel side-to-side or when the wheels are off the ground and I grab
a wheel and move it left or right. The play (subtle, muffled click) is
coming from the rack & pinion area.
If these are rebuildable, where does one buy a rebuild kit?
Another thing I wondered about....years ago I owned a 1966 Chevy Corvair.
As the steering box got "sloppy", I was able to tighten the lash at the box
with an adjustment screw/bolt......of course that wasn't rack & pinion but
does the TR rack have an adjustment capability to tighten lash?
chip
In a message dated 10/23/2012 2:55:32 P.M. Eastern Daylight Time,
allenhess@mgcarclub.com writes:
Is the play mostly when driving straight?
** triumphs@autox.team.net **
Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/triumphs/aljlthomson@charter.net
** triumphs@autox.team.net **
Archive: http://www.team.net/archive
|