Subaru Legacy 2004 Service Manual page 1168

C: INSPECTION
1) Measure the bend, and repair or replace if nec-
essary.
Standard value:
0.020 mm (0.0008 in) or less
2) Check the journal for damage and wear. Re-
place if faulty.
3) Measure the outside diameter of camshaft jour-
nal. If the journal diameter is not within specifica-
tion, check the oil clearance.
Standard value 37.946 — 37.963
mm (in) (1.4939 — 1.4946)
4) Measurement of the camshaft journal oil clear-
ance:
(1) Clean the bearing caps and camshaft jour-
nals.
(2) Place the camshafts on cylinder head.
(Without installing the valve rocker.)
(3) Place a plastigauge across each of the cam-
shaft journals.
(4) Gradually tighten the cap in at least two
stages in alphabetical sequence shown in the
figure, and then tighten to the specified torque.
Do not turn the camshaft.
Tightening torque:
!
T1: 10 N m (1.0 kgf-m, 7.2 ft-lb)
!
T2: 20 N m (2.0 kgf-m, 14.5 ft-lb)
(A)
(E)
T1
(F)
(B)
(5) Remove the bearing caps.
ME-00118
Camshaft journal
Front Center, rear
29.946 — 29.963
(1.1790 — 1.1796)
T2
(C)
(D)
ME-00774
ME(H4DOTC)-57
Camshaft
(6) Measure the widest point of the plastigauge
on each journal. If oil clearance exceeds the lim-
it, replace the camshaft. If necessary, replace
the camshaft caps and cylinder head as a set.
Standard:
0.037 — 0.072 mm (0.0015 — 0.0028 in)
(7) Completely remove the plastigauge.
5) Check the cam face condition, and remove the
minor faults by grinding with oil stone. Measure the
cam height H. If it exceeds the limit or has partial
wear, replace it.
Cam height H:
Standard
Intake
45.85 — 45.95 mm (1.805 — 1.809 in)
Exhaust
45.75 — 45.85 mm (1.801 — 1.805 in)
Cam base circle diameter A:
37.0 mm (1.457 in)
H
MECHANICAL
ME-00119
A
ME-00120