Help with alignment parameters

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02-14-2004 | 08:17 AM

Alang

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From: San Diego

Help with alignment parameters

I was looking at my alignment specs sheet from my last service, and noticed some numbers that didn't look right.

The numbers listed are:

Code:


Front:Left
             Actual      Before       Range
Camber         -0.6        -0.6     -1.3  0.2
Caster         -8.9         8.9      7.4  8.9
Toe            -0.06        0.16     0.00 0.08
SAI            -5.7         5.7      4.3  5.8
Inc Angle      -5.1         5.1      3.0  6.0



Front:Right
             Actual      Before       Range
Camber        -1.3        -1.3      -1.3  0.2
Caster         8.2         8.2       7.4  8.9
Toe            0.06        0.17      0.00 0.08
SAI            2.9         2.9       4.3  5.8
Inc Angle      1.6         1.6       3.0  6.0

The first concern is that the SAI is out of spec even though the others numbers are. The tech told me that the SAI is not a adjustable parameter of the alignment, but a combination of the other angles. How can my car be in spec if this parameter is out of spec? Does anyone know what SAI really is?

Second, there is almost 1 degree of differential in the camber settings between right and left (1.3 vs .6). I would think they should be closer. Am I being overly critical here?

I've never really looked at this stuff before, but with the feathering I've got I am being hyper-careful with anything to do with alignment.

Any insight would be appreciated.

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