Service manual

4-28
ENG
VALVES AND VALVE SPRINGS
j. Measure the valve seat width
c
again. If
the valve seat width is out of specification,
reface and lap the valve seat.
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EAS00241
CHECKING THE VALVE SPRINGS
The following procedure applies to all of the
valve springs.
1. Measure:
9
valve spring free length
a
Out of specification
→
Replace the valve
spring.
2. Measure:
9
compressed valve spring force
a
Out of specification
→
Replace the valve
spring.
b
Installed length
3. Measure:
9
valve spring tilt
a
Out of specification
→
Replace the valve
spring.
Valve spring free length
Intake and exhaust valve
springs
47.33 mm (1.86 in)
<Limit>: 44.96 mm (1.77 in)
Compressed valve spring force
(installed)
Intake and exhaust valve
springs
135.6 – 156.0 N
(13.83 – 15.91 kgf) at 24.2 mm
Spring tilt limit
Intake and exhaust valve
springs
2.0 mm (0.08 in)
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