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2) Inspection and Measurement of valve
and valve guide
a) Valve
•
After cleaning the valves with clean
diesel oil, measure the valve stem's
outside diameter at upper, middle,
and lower to determine the wears
and when the wear limit is more than
0.15mm, replace the valves.
Valve
Standard
Intake
11.969 ~
Exhaust
11.944 ~
•
Inspect the scratch and wear of valve
stem seal contacting face, and if
necessary correct with the grinding
paper but if severe replace it.
•
If valve head thickness (H) becomes
less than 1.6mm for intake and
1.3mm for exhaust, replace the
valve.
Valve
Standard
Intake
2.6 ~ 3.0 mm
Exhaust
1.9 ~ 2.3 mm
b) Valve guide
•
Insert the valve into valve guide and
measure
the
valve and valve guide by the shaking
degree of valve. If the clearance is
bigger, measure the valve and then
replace the more worn valve guide.
Limit
11.980 mm
12.130 mm
11.955 mm
12.105 mm
Limit
1.6 mm
1.3 mm
clearance
between
H
- 78 -
Stem tip
EFM2036I
EFM2037I
Measuring
position
EA0M4052
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