Subaru Enthusiasts Car Club of the Sierras  

Go Back   Subaru Enthusiasts Car Club of the Sierras > Car Enthusiast Forums > Technical Chat

Technical Chat Ask and answer technical car questions.

Reply
 
Thread Tools
Old 2004-08-23, 12:03 PM   #1
doubleurx
EJ205
 
doubleurx's Avatar
 
Join Date: May 2004
Location: Truckee
Posts: 1,948
Default Steering wheel question

I just had my steering rack bushings replaced. Prior to that my car was slightly out of alignment, so the steering wheel was off just slightly. I found I could force it into straight, but now the bushings are so much stiffer that the wheel is slightly off.

I know this is a stupid question, but does the air bag panel just pop off with a little force? and can the wheel be adjusted by about 5-10 degrees easily? I tried calling Nate, but he is out of town this weekend at a rally.

duh,

Nick
doubleurx is offline   Reply With Quote
Old 2004-08-23, 12:06 PM   #2
sperry
The Doink
 
sperry's Avatar
 
Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
 
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
 
The way out is through
Default Re: Steering wheel question

Quote:
Originally Posted by doubleurx
I just had my steering rack bushings replaced. Prior to that my car was slightly out of alignment, so the steering wheel was off just slightly. I found I could force it into straight, but now the bushings are so much stiffer that the wheel is slightly off.

I know this is a stupid question, but does the air bag panel just pop off with a little force? and can the wheel be adjusted by about 5-10 degrees easily? I tried calling Nate, but he is out of town this weekend at a rally.

duh,

Nick
You need to adjust the tire rods, not the wheel.
__________________
Is you is, or is you ain't, my con-stit-u-ints?
sperry is offline   Reply With Quote
Old 2004-08-23, 12:14 PM   #3
doubleurx
EJ205
 
doubleurx's Avatar
 
Join Date: May 2004
Location: Truckee
Posts: 1,948
Default

Great! Is that fairly easy?
doubleurx is offline   Reply With Quote
Old 2004-08-23, 12:34 PM   #4
sperry
The Doink
 
sperry's Avatar
 
Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
 
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
 
The way out is through
Default

Quote:
Originally Posted by doubleurx
Great! Is that fairly easy?
Well.... if you've ever adjusted your toe yourself, you already know how to do it.

I'm not sure I can explain it well in print, but I'll try:

The steering rack connects to the wheels via adjustable tie rod ends. These ends are basically screws that go into a sleeve with a lock nut on them. By breaking the lock nut loose, you can then turn the tierod into or out of the sleeve thereby adjusting the length of the steering linkage. Assuming the wheel is straight to begin with, you would adjust these tierods evenly on both sides to adjust the toe-in/out of the front suspension. But if you adjust them unevenly, then the steering wheel will not center correctly because the wheels self center to the direction of travel.

Because the steering linkage is in front of the axle, here's how adjusting the tierods affects the steering:

Lengthening both tire rods = toe out
Shortening both tire rods = toe in
Driver's side too long = wheel centers to the right, toe is out
Passenger's side too long = wheel centers to the left, toe is in
Driver's side too short = wheel centers to the left, toe is in
Passenger's side too short = wheel centers to the right, toe is in
Driver's too short and passengers too long = wheel centers to the left, toe is correct
Driver's too long and passenger's too short = wheel centers to the right, toe is correct

The bottom line is: you need to adjust the tierods to straighten the wheel (which without a professional setup is a trial and error job) then you'll need to re-align the toe on the car. So you'll need a toe gauge. I made my own out of aluminum. Dean made his out of some aluminum plates and two tape measures.
__________________
Is you is, or is you ain't, my con-stit-u-ints?
sperry is offline   Reply With Quote
Old 2004-08-23, 12:42 PM   #5
doubleurx
EJ205
 
doubleurx's Avatar
 
Join Date: May 2004
Location: Truckee
Posts: 1,948
Default

Quote:
Originally Posted by sperry
Quote:
Originally Posted by doubleurx
Great! Is that fairly easy?
Well.... if you've ever adjusted your toe yourself, you already know how to do it.

I'm not sure I can explain it well in print, but I'll try:

The steering rack connects to the wheels via adjustable tie rod ends. These ends are basically screws that go into a sleeve with a lock nut on them. By breaking the lock nut loose, you can then turn the tierod into or out of the sleeve thereby adjusting the length of the steering linkage. Assuming the wheel is straight to begin with, you would adjust these tierods evenly on both sides to adjust the toe-in/out of the front suspension. But if you adjust them unevenly, then the steering wheel will not center correctly because the wheels self center to the direction of travel.


Because the steering linkage is in front of the axle, here's how adjusting the tierods affects the steering:

Lengthening both tire rods = toe out
Shortening both tire rods = toe in
Driver's side too long = wheel centers to the right, toe is out
Passenger's side too long = wheel centers to the left, toe is in
Driver's side too short = wheel centers to the left, toe is in
Passenger's side too short = wheel centers to the right, toe is in
Driver's too short and passengers too long = wheel centers to the left, toe is correct
Driver's too long and passenger's too short = wheel centers to the right, toe is correct

The bottom line is: you need to adjust the tierods to straighten the wheel (which without a professional setup is a trial and error job) then you'll need to re-align the toe on the car. So you'll need a toe gauge. I made my own out of aluminum. Dean made his out of some aluminum plates and two tape measures.
Soo, No is the answer. I'll have a look under to see if I want to tackle this. The actual adjustment seems simple, getting it right without screwing the entire alignment before Sunday may be a little more difficult.
doubleurx is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dyno Numbers Dean Technical Chat 519 2019-02-24 10:29 AM
steering wheel question MPREZIV Motorsports Chat 37 2006-03-24 10:36 PM
97 SVX Wheel bearing question... U53D Technical Chat 3 2005-09-15 01:04 PM
Steering Question MattR Technical Chat 1 2003-07-11 01:32 PM
Quick wheel question MattR Technical Chat 5 2003-04-28 05:46 AM


All times are GMT -8. The time now is 10:19 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
All Content Copyright Subaru Enthusiasts Car Club of the Sierras unless otherwise noted.