D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
48
Printed in Jan. 2001 PS-MMA0415-E1A
3.2. Inspection and Measurement on Major Parts
3.2.1. Cylinder block
z
Clean the cylinder block thoroughly, and check for any crack or damage.
z
If there is any crack or severe damage, replace it and if there is minor one, correct
it.
z
Check for any clogging or corrosion in the oil passage and water passage.
z
Carry out a leakage test for any crack or air leaking. (Hydraulic test)
z
Plug each cylinder block's water and oil discharge ports, and apply the air
pressure of about 4kg/cm
2
to intake port and soak it in water for about 1 minute to
check if there is any leakage. (Water temperature : 70
°
C)
3.2.2. Cylinder head
(1) Cylinder head assembly & disassembly
1) Disassemble the cylinder assembly,
and put it on the shelf for assembly or
clean lathe.
CAUTION :
Prevent any damage to gasket's
contact surface of the cylinder
head.
2) Disassemble the cotter pin, spring,
spring seat pushing valve spring by a
special tool.
3) Pull out the intake and exhaust valves.
4) The disassembled parts are kept laid
in turn.
5) Disassemble the valve stem seal.
6) By means of the special tool, punch,
pull out a valve guide.
G1102
Compress the spring
Содержание D1146
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