Cylinder Block Assembly: Testing and Inspection

CYLINDER BLOCK
1. Visually check for scratches, rust, and corrosion. Also, use a flaw detecting agent for the check. If defects are evident, correct, or replace.
2. Using a straightedge and feeler gauge, check the flatness of the block top surface. Make sure that the surface is free from gasket pieces and other foreign matter.
Standard value: 0.05 mm (0.002 inch)
Limit: 0.1 mm (0.003 inch)
3. If distortion is excessive, correct within the allowable limit or replace.
Grinding limit [1]: 0.2 mm (0.007 inch)
Cylinder block height (when new): 290 mm (11.4 inch)
4. Check the cylinder walls for scratches and seizure. If defects are evident, correct (rebore to an oversize) or replace.





5. Using a cylinder gauge, measure the cylinder bore and cylindricity. If worn badly, correct by boring the cylinders to an oversize and replace pistons and piston rings. Measure at the points shown in the illustration.
Standard value:
Cylinder I.D.: 86.5 mm (3.406 inch)
Cylindricity: 0.01 mm (0.0003 inch)

[1] Includes/combined with cylinder head grinding.