Cylinder Bore Inspection. Chevrolet Joy 2008

For 1990-2009 cars

1. Wipe out the cylinder wall and check any scratch or excess abrasion on it. Apply boring with oversize when such damage is over the limits.

Important: Specification of oversize shall be varied as 0.25, 0.50, 0.75 and 1.00, and the oversize should be same for cylinder, piston and rings upon boring and installing. The same oversize on the 3 cylinders should be maintained.

2. Measure the inner diameter of cylinder with bore gage in longitudinal and transverse directions (1).
3. There are 3 measuring locations A, B, and C. If beyond specifications, rebore to the next oversize (1).

Specifications

• | The limit of bore diameter cylinder is 68.570 mm (2.700 in).

• | The taper limit is 0.10 mm (0.0039 in and less.

• | Out of round is 0.05 mm (0.002 in) and less.