Subaru IMPREZA GD 2007 Series Manual page 2447

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MECHANICAL
13.Crank Pulley
A: REMOVAL
NOTE:
Perform the work with the engine installed to body
when replacing a single part.
1) Remove the V-belts. <Ref. to ME(H4DOTC)-44,
REMOVAL, V-belt.>
2) Remove the crank pulley bolt. To lock the crank-
shaft, use ST.
ST 499977100 CRANK PULLEY WRENCH
ST
3) Remove the crank pulley.
B: INSTALLATION
1) Install the crank pulley.
2) Install the pulley bolt. To lock the crankshaft, use
ST.
ST 499977100 CRANK PULLEY WRENCH
(1) Clean the crank pulley threads using com-
pressed air.
(2) Apply engine oil to the crank pulley bolt seat
and thread.
(3) Tighten the bolts temporarily with tightening
torque of 44 N·m (4.5 kgf-m, 33 ft-lb).
(4) Tighten the crank pulley bolts.
Tightening torque:
180 N·m (18.4 kgf-m, 132.8 ft-lb)
ST
Crank Pulley
3) Check that the tightening angle of the crank pul-
ley bolt is 65° or more. Perform the following proce-
dure when less than 65°.
CAUTION:
If the tightening angle of the crank pulley bolt is
less than 65°, the bolt is damaged. In this case,
the bolt must be replaced with a new part.
(1) Replace the crank pulley bolts with new
parts and clean.
Crank pulley bolt:
12369AA011
(2) Clean the crankshaft thread using com-
pressed air.
(3) Apply engine oil to the crank pulley bolt seat
and thread.
(4) Tighten the bolts temporarily with tightening
torque of 44 N·m (4.5 kgf-m, 33 ft-lb).
(5) Tighten the crank pulley bolts 65° to 75°.
NOTE:
Conduct the tightening procedures by confirming
ME-00063 the turning angle of crank pulley bolt referring to the
gauge indicated on timing belt cover.
4) Install the belt tensioner.
5) Install the V-belts. <Ref. to ME(H4DOTC)-44,
INSTALLATION, V-belt.>
C: INSPECTION
1) Make sure the V-belt is not worn or otherwise
damaged.
2) Check the tension of the belt. <Ref. to
ME(H4DOTC)-45, INSPECTION, V-belt.>
ME-00063
ME(H4DOTC)-46
ME-00061