Cylinder Head - Yanmar 4JH2E Service Manual

Chapter 2 Basic Engine
3. Cylinder Head
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4JH2
Series
3. Cylinder Head
The cylinder head is of 4-cylinder integral construction,
mounted with 18 bolts. Special alloy stellite with superior
resistance to heat and wear is fitted on the seats, and the
area between the valves is cooled by a water jet.
Valve rocker arm shaft
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shaft •:ing
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rocker arm
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I-Valve spring
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Stem seal
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Valve guide
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Valve rocker
arm support
Printed in Japan
AOAJ029-9002