Cylinder Block Assembly: Testing and Inspection

1. Clean cylinder block thoroughly and check all core hole plugs for evidence of leaking.
2. If new core plugs are installed, refer to Engine Core Plugs outlined in this section.
3. Examine block and cylinder bores for cracks or fractures.

CYLINDER BORE INSPECTION

Checking Cylinder Bore Size:

The cylinder walls should be checked for out-of-round and taper with Tool C119. The cylinder bore out-of-round is 0.050 mm (0.002 inch) maximum and cylinder bore taper is 0.051 mm (0.002 inch) maximum. If the cylinder walls are badly scuffed or scored, the cylinder block should be replaced, and new pistons and rings fitted.
Measure the cylinder bore at three levels in directions A and B. Top measurement should be 10 mm (3/8 inch) down and bottom measurement should be 10 mm (3/8 inch) up from bottom of bore. Refer to Cylinder Bore and Piston Specification Chart.





CYLINDER BORE AND PISTON SPECIFICATION CHART