S2000 Racing and Competition The S2000 on the track and Solo circuit. Some of the fastest S2000 drivers in the world call this forum home.

Caster Adjustment Problem

Thread Tools
 
Old Nov 6, 2015 | 08:00 AM
  #1  
Dreaming_S2k's Avatar
Thread Starter
 
Joined: Oct 2009
Posts: 3,194
Likes: 28
From: South Carolina
Default Caster Adjustment Problem

Hoping you guys might be able to point me in the right direction here.

I had an alignment done today, and the tech (who is a trusted, knowledgeable friend) couldn't get my right front caster in spec by a large margin. With the camber @ -2.3, the caster is stuck at 2.5. The left front is normal @ 5.5. What could the problem be? Standing under the car, I can't really visually see that anything is bent and all the adjusters seem to move just fine (as in, not seized at all).

I've done a little searching around, but most of what I've found seems to be issues where the caster is ~1 apart from side to side.

Any help would be appreciated!
Reply
Old Nov 6, 2015 | 11:34 AM
  #2  
devildust's Avatar
10 Year Member
Liked
 
Joined: Jun 2011
Posts: 1,040
Likes: 4
From: UMW
Default

Any camber issues, or just caster? Could maybe be a shift in sub-frame, that was my issue at least.
Reply
Old Nov 6, 2015 | 11:39 AM
  #3  
gptoyz's Avatar
 
Joined: Jul 2012
Posts: 1,452
Likes: 23
Default

If the camber and caster bolts are not seized, next check that your compliance bushings aren't torn to shit.

Most likely though, your knuckle is bent where it connects to the upper a arm ball joint.

The next place it would be is a bent lower control arm
Reply
Old Nov 6, 2015 | 01:47 PM
  #4  
Dreaming_S2k's Avatar
Thread Starter
 
Joined: Oct 2009
Posts: 3,194
Likes: 28
From: South Carolina
Default

Originally Posted by devildust
Any camber issues, or just caster? Could maybe be a shift in sub-frame, that was my issue at least.
No camber issues at all. 2.7 Front L, 2.8 Front R

Originally Posted by gptoyz
If the camber and caster bolts are not seized, next check that your compliance bushings aren't torn to shit.

Most likely though, your knuckle is bent where it connects to the upper a arm ball joint.

The next place it would be is a bent lower control arm
I'll have to take a look at the knuckle. Thanks for the suggestion!
Reply
Old Nov 7, 2015 | 11:34 AM
  #5  
1MR's Avatar
1MR
Registered User
 
Joined: Feb 2014
Posts: 114
Likes: 1
Default

Originally Posted by gptoyz
If the camber and caster bolts are not seized, next check that your compliance bushings aren't torn to shit.

Most likely though, your knuckle is bent where it connects to the upper a arm ball joint.

The next place it would be is a bent lower control arm
^This

+1 on starting with compliance bushings, mine were torn leaving me with stuck caster adjustment. If compliance bushings check out, move on to knuckle/control arm.
Reply
Old Nov 8, 2015 | 06:20 PM
  #6  
Gottabfast's Avatar
10 Year Member
 
Joined: Jun 2013
Posts: 175
Likes: 0
Default

My the frozen bushings on my car required a lot of hammering- a little too much led to the subframe bending at the front horizontal control arm bolt. If you can see a difference side to side in the position of the vertical control arm bolt then it's possible the subframe is bent.
Reply
Old Nov 8, 2015 | 08:29 PM
  #7  
Chris_'s Avatar
Registered User
 
Joined: Jun 2010
Posts: 144
Likes: 0
Default

Good to look at other readings to see if something could be bent rather than the eyeball method (if there is nothing really obvious like a torn bushing). Hope this helps, not a definite answer, but should lead you in the right direction.

Reply

Trending Topics

Old Nov 8, 2015 | 08:43 PM
  #8  
SmokeyGatto's Avatar
10 Year Member
 
Joined: Jul 2013
Posts: 1,185
Likes: 34
Default

i too have bent a front knuckle. thought it only affected camber. caster was untouched in my experience. I couldnt get camber past - .8 degrees
Reply
Old Nov 9, 2015 | 11:59 AM
  #9  
gptoyz's Avatar
 
Joined: Jul 2012
Posts: 1,452
Likes: 23
Default

Originally Posted by SmokeyGatto
i too have bent a front knuckle. thought it only affected camber. caster was untouched in my experience. I couldnt get camber past - .8 degrees
It's not as simple as only as one is affected.

When something is bent, torn or worn with relation to our alignment adjustment, it means the other characteristics are affected.

This is especially pronounced when you are setting for maximum camber/caster conditions on a performance alignment.

For a street car with about 6 degrees of caster and 1 degree of camber, you maybe able to slightly bend the knuckle, control arm and still have enough adjustment to achieve your desired alignment.

However for a track seeking 3+ degrees of camber AND 6.5+ degrees of caster, this is when you will find out immediately if something is bent.

Typically, when I help my friends set up their alignment, I ask our alignment professionals to find out what the maximum camber/caster possibility is of the car, if the settings are off by more than .2 degrees of caster and camber good bet something is bent, seized, broken, worn out or miss aligned.

Btw to the guy with the issue of hammering during an alignment, don't let whoever it was tinkering with your car, touch it again, you shouldn't be beating on anything with a hammer.
Reply
Old Nov 9, 2015 | 04:51 PM
  #10  
Dreaming_S2k's Avatar
Thread Starter
 
Joined: Oct 2009
Posts: 3,194
Likes: 28
From: South Carolina
Default

Thank you gentlemen for all the feedback. I'll definitely get it all checked out soon.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SportInjected
S2000 Brakes and Suspension
13
Aug 17, 2016 10:31 AM
philipminge
S2000 Under The Hood
1
Jan 1, 2011 04:07 PM
marks_lude
S2000 Racing and Competition
4
Apr 16, 2010 11:41 AM
bigwhite
S2000 Under The Hood
12
Jul 19, 2009 09:16 PM
dan_uk
S2000 Racing and Competition
1
Jun 5, 2009 06:25 AM




All times are GMT -8. The time now is 10:16 AM.