Saturday, May 4, 2013
Yamaha Yz250f cylinder head
• To close the cylinder block and the combustion chamber
• As a holder of the valves, spark plugs, injectors, Cam shaft, gas lines go dankeluar, water cooling and lubrication lines.
imposition
The cylinder head gets load pressure and high temperature due darihasil fuel combustion in the cylinder motor.
Material of cylinder head
To withstand the pressure and heat of combustion arising, then kepalasilinder should be: strong, tough and heat resistant.
Various kinds of material cylinder head
1. cast iron
• Has a high compressive strength
• Loud
• Can reduce vibration and noise
• Small Expansion
2. Mixed Aluminum
• Able to transfer heat to the baikMaka: - reduced knocking tendency
-Comparison of the components can be elevated
-Power motor can be larger.
• Expansion besarMasalah: cylinder head gasket density is reduced
• Stand and conductor of the valve should be made of hard metal, untukmengatasi wear.
• Lightweight
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