Cylinder Block Assembly: Testing and Inspection

CHECKING CYLINDER BORE

NOTE:DO NOT have the cylinder block mounted to the assembly stand while measuring the cylinder bores. The block is deformed by its own weight under these conditions and this stress will result in false measurements that are not accurate after the tension has been relieved.





- Checking points:
1 - Approx. 10 mm from top
2 - Center
3 - Approx. 10 mm from bottom
A - Across cylinder block (perpendicular to crankshaft)
B - In line with cylinder block (parallel to crankshaft)
- Measure diagonally at three points in transverse direction -A and in longitudinal direction -B-.
- Use suitable internal dial gauge 50-100 mm (2-4 inch).
Specifications:
Maximum deviation from nominal dimension: 0.08 mm (0.0031 inch).

CYLINDER DIMENSIONS
Basic dimension: 82.51 mm (3.2484 inch).
1st oversize: 82.76 mm (3.2583 inch).
2nd oversize: 83.01 mm (3.2681 inch).

NOTE: Only pistons of the "basic dimension " size are available from the Parts Department.