- 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.
- Measure the inner diameter of cylinder with bore gage in longitudinal and transverse
directions (1).
- 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. |