Cylinder Block Assembly: Testing and Inspection

Classification
- Each cylinder is identified by a classification marking (C,D,E or G) punched into the rear of the block.
- Oversize bores are indicated by the abbreviation OS1 or OS2 as appropriate.
This marking must be added after reboring.
- Cylinder bores are shown below.
Standard:
Bore marked C: 81.00-81.01 mm
Bore marked D: 81.01-81.02 mm
Bore marked E: 81.02-81.03 mm
Bore marked G: 81.04-81.05 mm

Oversize:
OS1: 81.20-81.21 mm
OS2: 81.40-81.41 mm

NOTE: Cylinders should be rebored when wear reaches 0.10 mm.