Subaru 2009 IMPREZA Service Manual page 1084

MECHANICAL
8. Valve Clearance
A: INSPECTION
CAUTION:
If engine oil is spilt onto the exhaust pipe, wipe
it off with cloth to avoid emission of smoke or
causing a fire.
NOTE:
Inspection and adjustment of valve clearance
should be performed while engine is cold.
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
3) Remove the air
IN(H4DOTC)-11, REMOVAL, Air Intake Duct.>
4) Remove the bolt which secures timing belt cover
RH.
5) Lift up the vehicle.
6) Remove the under cover.
7) Loosen the remaining bolts which secure timing
belt cover RH, then remove the timing belt cover.
8) Lower the vehicle.
9) When inspecting #1 and #3 cylinders
(1) Remove the air cleaner case. <Ref. to
IN(H4DOTC)-9, REMOVAL,
Case.>
(2) Remove the
IG(H4DOTC)-7, REMOVAL, Ignition Coil.>
(3) Place a suitable container under the vehicle.
Valve Clearance
IN-00203
intake duct. <Ref.
Air Cleaner
ignition coil. <Ref.
ME(H4DOTC)-26
(4) Disconnect the PCV hose from the rocker
cover RH.
NOTE:
For the PCV hose affixed with the clamp, fit the de-
pression in the ST with the protrusion of the clamp
as shown in the figure below, unlock the clamp and
disconnect.
ST 18353AA000 CLAMP PLIERS
(5) Remove the bolts, then remove the rocker
cover RH.
10) When inspecting #2 and #4 cylinders
(1) Remove the battery. <Ref. to SC(H4SO)-22,
REMOVAL, Battery.>
to
(2) Remove the secondary air pump. <Ref. to
EC(H4DOTC)-24, REMOVAL, Secondary Air
Pump.>
(3) Remove
IG(H4DOTC)-7, REMOVAL, Ignition Coil.>
(4) Place a suitable container under the vehicle.
(5) Disconnect the PCV hose from the rocker
cover LH.
NOTE:
For the PCV hose affixed with the clamp, fit the de-
pression in the ST with the protrusion of the clamp
as shown in the figure below, unlock the clamp and
disconnect.
to
ST 18353AA000 CLAMP PLIERS
(6) Remove the bolts, then remove the rocker
cover LH.
ME-03630
the ignition coil. <Ref.
ME-03630
to