DV11
Operation and Maintenance
69
Measurement and Inspection of Major Parts
Printed in Mar. 2005 PS-MMA0608-E1A
3.2. Measurement and Inspection of Major Parts
3.2.1. Cleaning and inspection of cylinder block
1) Clean the cylinder block and inspect it for any crack or damage.
2) If there is any crack or severe damage, replace it and if there is minor one,
correct it.
3) Inspect the oil passage and water passage for any clog and erosion.
4) By performing the hydraulic test, inspect for any leaks. With plugging the water
and oil passages of cylinder block, put in the air of 5 kg/cm
2
pressure in the inlet
port of cylinder block and then soak the cylinder block in the water for about 1
minute to check for any leaks. (water temperature : 70
°
C)
5) Inspect the cylinder block's camshaft bush to any damage and the alignment of oil
supply holes and if abnormal, replace it.
3.2.2. Cylinder liner measurement
z
Assemble the cylinder liner at the
cylinder block and measure inner
diameters at upper, middle, lower 3
levels by 45
°
interval and calculate
the average values after
eliminating the max. and min.
values.
z
If the measured values are very
close to the limit value or beyond,
replace it.
Standard Limit
Liner inner
diameter
φ
127.990
∼
φ
128.010 mm 0.15 mm
3.2.3. Cylinder head
1) Cylinder head disassembly
z
Be careful for the cylinder head
gasket contacting surface of
cylinder head not to be damaged.
z
Remove the cotter pin pressing the
valve spring by means of a special
tool.
z
Take out the valve stem seal
.
Valve spring
compression tool
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