4 Tak
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LANGKAH PEMASUKAN LANGKAH KOMPRESI
LANGKAH USAHA LANGKAH BUANG
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Single Overhead Camshaft Type ( S.O.H.C )
•Batang penekan bisa ditiadakan, sehingga gerakan balik dapat dinetralisir.
Posisi “Cam” berada di atas dan di tengah cylinder, dan digerakkan oleh rantai
penggerak yang langsung memutar cam, dimana cam memutar rocker arm•Komponen yang sedikit membuat stabil pada putaran tinggi
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(valve guide)
(valve steam)
(valve face)
(valve seat)
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A
B
C D
CAM LIFT = A – B
VALVE LIFT = CL x D C
VALVE CLEARANCE
LUAS EFECTIV INTAKE AREA = VALVE LIFT X 3,14 X
Valve clearance
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