Subaru Legacy 2004 Service Manual page 1136

8. Valve Clearance
A: INSPECTION
Inspection and adjustment of valve clearance
should be performed while engine is cold.
1) Lift-up the vehicle.
2) Remove the under cover.
3) Lower the vehicle.
4) Remove the collector cover.
5) Disconnect the ground cable from battery.
6) Remove the air
IN(H4DOTC)-9, REMOVAL, Air Intake Duct.>
7) Remove a bolt which secures timing belt cover
(RH).
8) Loosen the remaining bolts which secure timing
belt cover (RH), then remove the timing belt cover.
9) When inspecting #1 and #3 cylinders:
(1) Remove the air cleaner case.
<Ref. to IN(H4DOTC)-8, REMOVAL, Air Clean-
er Case.>
(2) Disconnect the connector from ignition coil.
(3) Remove the ignition coil.
(4) Place a suitable container under the vehicle.
(5) Disconnect the PCV hose from rocker cover
(RH).
(6) Remove the bolts, then remove the rocker
cover (RH).
10) When inspecting #2 and #4 cylinders:
(1) Disconnect the battery cable, and then re-
move the battery and battery carrier.
(2) Disconnect the connector from ignition coil.
(3) Remove the ignition coil.
(4) Place a suitable container under the vehicle.
(5) Disconnect the PCV hose from rocker cover
(LH).
(6) Remove the bolts, then remove the rocker
cover (LH).
11) Turn the crank pulley clockwise until arrow
mark on the cam sprocket is set to position shown
in the figure.
Valve Clearance
IN-00203
intake duct. <Ref.
ME(H4DOTC)-27
NOTE:
Turn the crankshaft using a socket wrench.
12) Measure the #1 cylinder intake valve and #3
cylinder exhaust valve clearance by using thick-
ness gauge (A).
NOTE:
• Insert the thickness gauge in as horizontal a di-
rection as possible with respect to the valve lifter.
• Measure the exhaust valve clearances while lift-
ing-up the vehicle.
to
Valve clearance
Intake:
+0.04
0.20
#0.06
Exhaust:
0.35$0.05 mm (0.0138$0.0020 in)
• If the measured value is not within specification,
take notes of the value in order to adjust the valve
clearance later on.
13) If necessary, adjust the valve clearance. <Ref.
to ME(H4DOTC)-28, ADJUSTMENT, Valve Clear-
ance.>
14) Further turn the crank pulley clockwise and
then measure the valve clearances again.
MECHANICAL
ME-00733
+0.0016
mm (0.0079
#0.0024
( A )
ME-00019
in)