Service manual

VALVES AND VALVE SPRINGS
EAS00241
CHECKING THE VALVE SPRINGS
The following procedure applies to all of the valve
springs.
1. Measure:
• valve spring free length a
Out of specification -» Replace the valve
spring.
Valve spring free length
Intake valve spring
39.35 mm (1.5492 in)
<Limit>: 37.38 mm (1.4717 in)
Exhaust valve spring
41.57 mm (1.6366 in)
<Limit>: 39.49 mm (1.5547 in)
2. Measure:
• compressed valve spring force a
Out of specification -» Replace the valve
spring.
b Installed length
Compressed valve spring force (in-
stalled)
Intake valve spring
91.1~104.9N(9.3~10.7kg,
20.48~23.58lb) at 28mm(1.1024in)
Exhaust valve spring
107.9~124.1N(11.0~12.7kg,
24.26~27.90lb) at 30mm(1.1811in)
3. Measure:
• valve spring tilt a
Out of specification -» Replace the valve
spring.
Spring tilt limit
Intake valve spring
1.7 mm (0.0669 in) ( 2.5° )
Exhaust valve spring
1.8 mm (0.0709 in)( 2.5° )
5-28