Genuine Jeep Comanche Rocker Arm

Rocker Arm is an important component of the valve train system in Jeep Comanche designed to translate the motion of the push rod to the intake and the exhaust valves. Made out of stamped steel or aluminium the Rocker Arm is required to translate the pushrods vertical movement into the downward force needed to open the valves. In high numbers of revolutions per minute applications, aluminum is the material of choice due to the low density it has and cast iron or forged carbon steel is used in diesel engines due to the high density they have. Various types of Rocker Arms, namely roller rockers do not exert pressure on the parts due to the needle bearings reducing the friction and wear as compared to the earlier models. The rocker ratio that varies from 1.5:1 to 1.8:1 in modern engines makes it possible to increase limit of camshaft lift thus improving performance. Additional fulcrum bearings are also used in models of the Jeep Comanche with high Revolutions Per Minute, to address stress and upgrade the Rocker Arm longevity, on those Jeep models.

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