G424F(FE) Service Manual Chapter 3. Engine Mechanical System 32
CYLINDER HEAD
Valve seat angle (all) .......................................................................................................................... 90° ± 1°
INTAKE AND EXHAUST VALVES
Seat angle ........................................................................................................................................ 92° ± 15°
Stem lash in the guides........................................................................................... 0.015 a 0.042 mm (intake)
e 0.030 a 0.060 mm (exhaust)
Available oversize................................................................................................... 0.075 a 0.150 e 0.250 mm
Valve seat eccentricity tolerance (between maximum and minimum readings).................................. 0.050 mm
Valve seat widths:
– Intake....................................................................................................................................1.3 – 1.4 mm
– Exhaust ...............................................................................................................................1.7 – 1.8 mm
CAMSHAFT
End clearance..........................................................................................................................0.04 – 0.16 mm
Camshaft maximum warping.............................................................................................................. 0.04 mm
OIL PUMP
Clearance between:
– Driven gear and case ........................................................................................................0.11 a 0.19 mm
– Drive gear and crescent.....................................................................................................0.35 a 0.45 mm
– Gear and cover..................................................................................................................0.03 a 0.10 mm
Pressure @ 1400 RPM..............................................................................................................282 – 324 kPa
(41 – 47 lbf·pul²)
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