Impreza WRX STI F4-2.5L DOHC Turbo (2007)
14) Install the crank pulley.
15) Install the V-belts.
INSPECTION
1) Measure the bend, and repair or replace if necessary.
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) Measurement of the camshaft journal oil clearance
(1) Clean the bearing caps and camshaft journals.
(2) Place the camshafts on cylinder head. (Without installing the valve lifter)
(3) Place a plastigauge across each camshaft journals.
(4) Gradually tighten the cap in at least two stages in alphabetical order shown in the figure, and then tighten to specified torque. Do not turn the
camshaft.
(5) Remove the bearing caps.
(6) Measure the widest point of the plastigauge on each journal. If the oil clearance exceeds the limit, replace the camshaft. If necessary, replace
the camshaft caps and cylinder head as a set.
