II - 7
5) After adjustment 3) and 4), turn the fly
-
wheel revolution, and again align the
top mark (orange) on the camshaft pulley
with the timing pointer. If the valves were
adjusted first at the first cylinder TDC posi
-
tion, adjust the remaining valves with the ○
mark in Table 1. If the valves were adjusted
first at the fourth cylinder TDC position,
adjust the clearance of the remaining valves
with the ● mark in Table 1 (Figures 5, 6, 7).
n
Adjust valve clearances
1) Rotate the pushrod with the fingers, and
check that the rod moves easily. If it does,
loosen the valve lock nut (14 mm). Slightly
loosen the adjusting bolt with a flat (-)
screwdriver, and insert the thickness gauge.
Turn the adjusting bolt to adjust the valve
clearance. When the adjustment is finished,
secure the adjusting bolt with the flat screw
-
driver so that it does not turn, then tighten
the lock nut (Figure 8).
2) Adjust the valve clearance while the engine is warm.
Intake valves
Discharge valves
When warm
0.45 mm
3) When finished adjusting the valve clearance, tighten the lock nut to the specified torque.
Lock nut
Tightening torque : 27.4 - 34.3 N•m
o
After adjustment
1) Reinstall the engine rocker arm cover and sparkplugs, and tighten to the specified torques. First tighten the 2
nuts for the engine rocker arm cover evenly on the left and right by hand, then tighten to the specified torque
with a torque wrench.
Engine rocker cover nut
Tightening torque : 13.7 - 15.7 N•m
Sparkplug
Tightening torque : 19.6 - 29.4 N•m
2) Install sparkplug coil brackets for all cylinders
Sparkplug coil bracket
Tightening torque : 15.7 - 17.7 N•m
p
Operation check
1) Cancel the engine stop. (Refer to the safety precautions and Section 1. (4) “
l
Canceling Engine Stop.”)
2) Make sure there are no abnormal noises (clicking or clattering sounds). If abnormal noises are present, the valve
clearances must be readjusted.
Figure 7 Location of each valve
discharge inlet inlet discharge discharge inlet inlet discharge
Figure 8 Valve clearances adjustment
