Chrysler laser 1990 Technical Information Manual page 98

VALVE MECHANISM
Exhaust
Exhaust valve
system.
roller rocker arm, is used that reduces drastically
the friction loss of the valve train.
adjust the valve clearance, minimizing noise
ENGINE - Base Engine
Rocker arm
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generated by the valve train. They also eliminate
the need for valve clearance adjustment.
contribute to the enhanced spring load. This in
turn ensures that the valves operate properly.
especially at high speed.
Intake valve