Inspection Of Cylinder Block

1. REMOVE GASKET MATERIAL

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

2. CLEAN CYLINDER BLOCK

Using a soft brush and solvent, clean the block.

3. INSPECT TOP OF CYLINDER BLOCK FOR FLATNESS

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

Maximum warpage: 0.05 mm (0.0020 in.)

If warpage is greater than maximum, replace the cylinder block.

4. INSPECT CYLINDERS FOR VERTICAL SCRATCHES

Visually check the cylinder for vertical scratches.

If deep scratches are present, rebore all six cylinders. If necessary, replace the cylinder block.

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Cj)Thfust Direction

rroni i

<2> Axial Direction

_ A

_i_ 10 mm

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5. INSPECT CYLINDER BORE DIAMETER

Using a cylinder gauge, measure the cylinder bore diameter at positions A, B and C in the thrust and axial directions.

HINT: There are five sizes of standard cylinder bore diameter, marked "0", "1", "2". "3" and "4" accordingly. The mark is stamped on the cylinder block as shown in the illustration. Standard cylinder bore diameter:

STD size

Mark

"0"

82.990

- 83.000 mm

(3.2673

- 3.2677 in.)

Mark

* a ^ 01

83.001

- 83.010 mm

(3.2677

- 3.2681 in.)

Mark

»«2"

83.011

- 83.020 mm

(3.2681

- 3.2685 in.)

Mark

"3"

83.021

- 83.030 mm

(3.2685

- 3.2689 in.)

Mark

"4"

83.031

- 83.040 mm

(3.2689

- 3.2693 in.)

Maximum cylinder bore diameter:

STD size 83.24 mm (3.2772 in.) 0/S 0.50 83.74 mm (3.2968 in.)

If the diameter is greater than maximum, rebore all six cylinders. If nccessary, replace the cylinder block.

6. REMOVE CYLINDER RIDGES

If the wear is less than 0.2 mm (0.008 in.), use a ridge reamer to machine the top of the cylinder.

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  • suzanne
    What is inspection and repair of cylinder block?
    3 years ago

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