ENGINE MAIN PARTS - DISASSEMBLY
2 - 2
1. Cylinder Head, Valve Mechanism
Worn rocker shaft,
Clogged oil hole
Spring fatigue
Dent, Wear
Stepped wear, Damage
Wear,
Valve face contact
End face wear, damage
Bend
Valve seat contact,
damage, wear
Bottom face distortion
Valve guide wear, damage
Cracks, Damage, Coolant leakage,
Oil leakage, Scale formation,
Gasket, Carbon deposit
Damaged threads
Clogged oil hole
Wear
Spring fatigue,
damage
Disassembly of cylinder head and valve mechanism
<Disassembly sequence>
① Rocker cover
② Rocker shaft assembly
③ Push rod
④ Cylinder head bolt
⑤ Cylinder head
⑥ Cylinder head gasket
⑦ Valve cap
⑧ Valve lock
⑨ Retainer
⑩ Valve
⑪ Valve spring
⑫ Valve stem seal
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