a) Remove any remaining gaskets from the working surfaces of the block using a scraper and a metal brush.
b) Using solvent and a soft brush, thoroughly clean the cylinder block.
2. Check the cylinder block gas joint surface for flatness using a precision ruler and a flat feeler gauge.
Maximum non-flatness:
- eJ series - 0.08 mm
- kZ series - 0.05 mm
If the flatness exceeds the maximum, replace the cylinder block.
3. Check the cylinder bore for vertical scratches.
If there are deep scratches, replace the cylinder block.
4. Check the cylinder diameter.
Using a bore gauge, measure the cylinder diameter at three levels "A", "B" and "C" in the transverse (1) and longitudinal (2) directions, as shown in the figure.
Make sure that the difference between the maximum and minimum diameters of each cylinder does not exceed:
- eJ series - 0.200 mm
- kZ series - 0.020 mm
Nominal diameter:
eJ series:
- mark (1) — 72,000 - 76,010 mm
- mark (2) — 72.010 - 76.020 mm
- mark (3) — 72.030 - 76.040 mm
kZ series - 72,000 - 72,012 mm
5. Check the ovality and taper of the cylinders.
- Maximum ovality and taper - 0.03 mm