Cylinder block inspection (RZ4E-TC)

1. Cylinder block inspection

1. Cleaning

1) Carefully remove the liquid gasket, water stains, or foreign material on the top surface of the cylinder block.

Caution

  • Do not damage the cylinder block.

2. Visual inspection

1) Inspect the cylinder block for the following.

  • Cracking
  • Damage

Note

  • Perform a dye penetrant check as necessary.
  • Replace the cylinder block if cracking or damage is found.

3. Cylinder block deformation measurement

1) Remove the dowel pin from the cylinder block.

2) Measure the 4 sides and 2 locations in a diagonal line of the cylinder block top surface using a simple straight ruler and feeler gauge.

Note

  • If the measured value exceeds the limit, replace the cylinder block.

Caution

  • Do not polish the cylinder block top surface.

Limit: 0.075 mm { 0.0030 in }

Legend

  1. Simple straight ruler
  2. Feeler gauge

4. Cylinder block inner diameter measurement

1) Measure the most worn section of the cylinder bore in the measurement area using a cylinder gauge.

Note

  • Measure the entire circumference in the measurement area, and read the value for the most worn section.

Legend

  1. Measurement area

Legend

a. Thrust direction

b. Radial direction

Measurement position

c: 10 mm { 0.39 in }

d: 15 mm { 0.59 in }

2) Calculate the average based on the measured values in the thrust direction and radial direction.

Standard: 80.000 to 80.030 mm { 3.1496 to 3.1508 in }

Limit: 80.055 mm { 3.1518 in }

Note

  • If the measured value exceeds the limit, replace the cylinder block.