Normal deformation: 0.05 mm. Allowable deformation: 0.1 mm.
Figure 4.36. Checking the cylinder block deformation
2. Ensure that the surfaces are thoroughly cleaned of any gasket residue or other contaminants.
3. If the deformation is greater than the permissible limit, the cylinder block must be replaced.
Maximum grinding value: 0.2 mm. Cylinder block height (new): 243.5 mm - 4G92, 263.5 mm - 4G93.
4. Check the cylinder diameters for scratches and nicks (Figure 4.37). If defects are found, treat the cylinders by grinding to the repair size or replace the cylinder block.
Figure 4.37. Checking cylinder diameters
Original material on the website: MITSUBISHIMAN
5. Using a bore gauge, check the diameter, ovality and taper of the cylinders. If the cylinders are excessively worn, it is recommended to grind them, and the pistons and piston rings should be replaced with new ones.
Normal inner diameter: 81.00-81.03 mm.
Ovality and taper of the hole: 0.01 mm.