Subaru Impreza 2004 Service Manual page 43

MECHANICAL
(3) Set the arrow mark on camshaft sprocket to
position shown in the figure, and then measure
the #1 cylinder exhaust valve and #4 cylinder in-
take valve clearances.
15) After inspection, install the related parts in the
reverse order of removal.
Tightening torque:
33 N·m (3.4 kgf-m, 25 ft-lb)
B: ADJUSTMENT
CAUTION:
Adjustment of the valve clearance should be
performed while engine is cold.
1) Measure all valve
ME(H4DOTC)-40, INSPECTION, Valve Clear-
ance.>
NOTE:
Record each valve clearance after it has been
measured.
2) Remove the camshaft. <Ref. to ME(H4DOTC)-
69, REMOVAL, Camshaft.>
Valve Clearance
ME-00736
ME-00023
clearances. <Ref. to
ME-00024
ME(H4DOTC)-42
3) Remove the valve lifter.
4) Measure the thickness of valve lifter with a mi-
crometer.
5) Select a shim of suitable thickness using mea-
sured valve clearance and valve lifter thickness, by
referring to the following table.
Intake valve: S = V – 0.20
Exhaust valve: S = V – 0.25
S: Valve lifter thickness to be used
V: Measured valve clearance
Part No.
13228 AB101
13228 AB111
13228 AB121
13228 AB131
13228 AB141
13228 AB151
13228 AB161
13228 AB171
13228 AB181
13228 AB191
13228 AB201
13228 AB211
13228 AB221
13228 AB231
13228 AB241
13228 AB251
13228 AB261
13228 AB271
13228 AB281
13228 AB291
13228 AB301
13228 AB311
13228 AB321
13228 AB331
13228 AB341
13228 AB351
13228 AB361
13228 AB371
13228 AB381
ME-00025
Unit: mm
Thickness mm (in)
4.68 (0.1843)
4.69 (0.1846)
4.70 (0.1850)
4.71 (0.1854)
4.72 (0.1858)
4.73 (0.1862)
4.74 (0.1866)
4.75 (0.1870)
4.76 (0.1874)
4.77 (0.1878)
4.78 (0.1882)
4.79 (0.1886)
4.80 (0.1890)
4.81 (0.1894)
4.82 (0.1898)
4.83 (0.1902)
4.84 (0.1906)
4.85 (0.1909)
4.86 (0.1913)
4.87 (0.1917)
4.88 (0.1921)
4.89 (0.1925)
4.90 (0.1929)
4.91 (0.1933)
4.92 (0.1937)
4.93 (0.1941)
4.94 (0.1945)
4.95 (0.1949)
4.96 (0.1953)