Chrysler laser 1990 Technical Information Manual page 100

Operation of the Lash Adjuster
When the valve starts opening
-- No external load is applied to the plunger, thus
causing the plunger to be pushed
plunger spring, maintaining zero clearance.
When the cam pushes the rocker arm, the ball in
the high-pressure chamber immediately is held
pressed against the seat by the hydraulic press-
ure. fully closing the high-pressure chamber. A
the check ball closes, the pressure in the
high-pressure chamber surges causing the plun-
ger to support the load from rocker arm, which
.
ENGINE
When the valve coiqpletes
the opening stroke
UP
S
Base
Engine
During the valve opening stroke
A very small amount of oil leaks through the
clearance between the lash adjuster body and
plunger.
There is no external load being applied to the
plunger as the valve closes, causing the plunger
to be pushed up by the plunger spring. This
causes the pressure in the high-pressure cham-
ber to be lowered, which pushes the check ball
open. The oil which has leaked is replaced in the
high-pressure chamber from the reservoir cham-
ber.