Subaru LEGACY 2006 Manual page 831

asieps_tobira.book 27 ページ ２００９年１０月２６日 月曜日 午前９時１６分
13) Measure the valve clearance in #3, #2 and #4
cylinder in the same measurement procedure as #1
cylinder.
NOTE:
• Be sure to set the cylinder pistons to their re-
spective top dead centers on compression stroke
before measuring valve clearances.
• By rotating the crank pulley clockwise every 180°
from the state that #1 cylinder piston is on the top
dead center of compression stroke, #3, #2 and #4
cylinder pistons come to the top dead center of
compression stroke in this order.
14) After inspection, install the related parts in the
reverse order of removal.
B: ADJUSTMENT
CAUTION:
Adjustment of valve clearance should be per-
formed while engine is cold.
1) Set #1 cylinder piston to top dead center of com-
pression stroke by rotating the crank pulley clock-
wise using the socket wrench.
NOTE:
When the arrow mark (A) on cam sprocket (LH)
comes exactly to the top, #1 cylinder piston is
brought to the top dead center of compression
stroke.
Valve Clearance
2) Adjust the #1 cylinder valve clearance.
(1) Loosen the valve rocker nut and screw.
(2) Set a suitable thickness gauge.
(3) While noting the valve clearance, tighten the
valve rocker adjusting screw.
(4) When the specified valve clearance is ob-
tained, tighten the valve rocker nut.
Tightening torque:
9.75 N·m (1.0 kgf-m, 7.2 ft-lb)
CAUTION:
• Insert a thickness gauge in as horizontally as
possible with respect to the valve stem end
face.
• Adjust the exhaust valve clearances while
lifting-up the vehicle.
Valve clearance:
Intake
0.20
Exhaust
0.25
( A )
3) Adjust the valve clearance in #3, #2 and #4 cyl-
inder in the same adjustment procedure as #1 cyl-
inder.
NOTE:
• Be sure to set the cylinder pistons to their re-
ME-00200
spective top dead centers on compression stroke
before adjusting valve clearances.
• By rotating the crank pulley clockwise every 180°
from the state that #1 cylinder piston is on the top
dead center of compression stroke, #3, #2 and #4
cylinder pistons come to the top dead center of
compression stroke in this order.
4) Ensure the valve clearances of each cylinder are
within specifications. If necessary, readjust the
valve clearances.
ME(H4SO)-27
MECHANICAL
± ±
0.04 mm (0.0079 0.0016 in)
± ±
0.04 mm (0.0098 0.0016 in)
ME-00203