Subaru 2006 Legacy, Руководство пользователя

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ME(H4SO)-57
Cylinder Head
MECHANICAL
(5) Compress the valve spring and fit the valve
spring retainer key.
(6) After installing, tap the valve spring retainers
lightly with a plastic hammer for better seating.
E: INSPECTION
1. CYLINDER HEAD
1) Make sure that no crack or other damage do not
exists. In addition to visual inspection, inspect im-
portant areas using liquid penetrant tester.
Also make sure the gasket installing surface shows
no trace of gas and water leaks.
2) Place the cylinder head on the ST.
ST 498267800 CYLINDER HEAD TABLE
3) Measure the warping of the cylinder head sur-
face that mates with crankcase using a straight
edge and thickness gauge.
If the warping exceeds the limit, regrind the surface
with a surface grinder.
Warping limit:
0.03 mm (0.0012 in)
Grinding limit:
0.1 mm (0.004 in)
Standard height of cylinder head:
97.5 mm (3.839 in)
NOTE:
Uneven torque for the cylinder head bolts can
cause warping. When reassembling, pay special
attention to the torque so as to tighten evenly.
2. VALVE SEAT
Inspect the intake and exhaust valve seats, and
correct the contact surfaces with a valve seat cutter
if they are defective or when valve guides are re-
placed.
Valve seat width W:
Standard:
Intake (A)
0.8 — 1.4 mm (0.03 — 0.055 in)
Exhaust (B)
1.2 — 1.8 mm (0.047 — 0.071 in)
(A) Retainer key
(B) Valve spring
(C) Retainer
ME-02719
(B)
(B)
(A)
(A) Straight edge
(B) Thickness gauge
ST
(A)
(B)
ME-00285
W
W
(A) (B)
ME-00397
ME-00287
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