Impreza WRX STI F4-2.5L Turbo (2008)
15) Connect the connectors to the exhaust camshaft position sensor (A) and exhaust oil flow control solenoid valve (B).
16) Tighten the ignition coil.
17) Install the timing belt cover.
18) Install the crank pulley.
19) Install the V-belts.
INSPECTION
1) Measure the bend, and repair or replace if necessary.
Service limit. 0.020 mm (0.0079 inch) or less
2) Check the journal for damage and wear. Replace if faulty.
3) Check the cutout portion used for camshaft sensor for damage. Replace if faulty.
4) Measure the outside diameter of camshaft journal. If the journal diameter is not within the standard value, check the oil clearance.
5) Measure the camshaft journal oil clearance.
1) Clean the camshaft cap and cylinder head camshaft journal.
2) Place the camshaft on the cylinder head.(Without installing the valve lifter)
3) Place a plastigauge across each camshaft journals.
4) Gradually tighten the camshaft cap in at least two steps, in alphabetical order shown in the figure, and then tighten to the specified torque. Do
not turn the camshaft.
