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Home >> Oldsmobile >> 1999 >> Alero L4-144 2.4L DOHC VIN T SFI >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications >> Surface Variation

Surface Variation

Cylinder Head Maximum Overall Flatness Variation 0.003
Flatness Variation Over (1.0 inch) 0.001
Flatness Variation Over (6.0 inch) 0.002
Do Not Resurface if the Overall Measurement is Less Than 0.003
Resurface the Head if the Overall Measurement is More Than 0.003 - 0.010
Replace the Head if the Overall Measurement is More Than 0.010
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