Inspection
Cylinder Block
1.

Remove the gasket material.

Using a gasket scraper, remove all the gasket material from the top surface of the cylinder block.

2.

Clean the cylinder block.

Using a soft brush and solvent, thoroughly clean the cylinder block.

3.

Inspect the top surface of the cylinder block for flatness.

Using a precision straight edge and feeler gauge, measure the surface contacting the cylinder head gasket for warpage.

Flatness of cylinder block gasket surface

Standard : Less than 0.05 mm (0.002 in),

Less than 0.02 mm (0.0008 in) / 100 x 100 (3.937 x 3.937 in)

4.

Inspect the cylinder bore.

Visually check the cylinder for vertical scratchs.

If deep scratchs are present, replace the cylinder block.

5.

Inspect the cylinder bore diameter.

Using a cylinder bore gauge, measure the cylinder bore diameter at position in the thrust and axial direction.

Standard diameter :

72.00 ~ 72.03 mm (2.8346 ~ 2.8358 in)

6.

Check the cylinder bore size code on the cylinder block.

Discrimination of cylinder bore size

Grade

Size code

Cylinder Bore inner Diameter

a

A

72.00 ~ 72.01 mm

(2.8346 ~ 2.8350 in)

b

B

72.01 ~ 72.02 mm

(2.8350 ~ 2.8354 in)

c

C

72.02 ~ 72.03 mm

(2.8354 ~ 2.8358 in)

Яндекс.Метрика