Daewoo ST Series Instruções de Operação Página 71

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Valve Spring Inclination
Use a surface plate and a square to
measure the valve spring inclination.If
the measured value exceeds the
specified limit, the valve spring must be
replaced.
Valve Spring Tension
Use a spring tester to measure the
valve spring tension if the measured
value is less than the specified limit, the
valve spring must be replaced.
6.2.4. Rocker arm shaft assembly
1) Rocker arm shaft
Rocker arm shaft run-out
Place the rocker arm shaft on two V
blocks and inspect the shaft for
bending using a dial gauge.
If the amount of this run-out is small,
press the shaft with a bench press to
correct the run-out. Replace the shaft
if the measured value exceeds the
limit.
- 68 -
Standard Limit
Valve spring
1.8 mm 2.7 mm
inclination
Inclination
Free length
EJM2050I
Square
EA0M4056
Spring tester
EDM2037I
Set Length Limit
Intake Valve Spring
valve Tension at 41mm 70 kg
±
3kg
Set Length
Exhaust Inner 38 mm 28.6 kg
±
6 %
valve Outer 41 mm 66 kg
±
5 %
Spring
force
Limit 0.3 mm
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