Hyundai HL930A, Operation & Maintenance Manual

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(10) Align the vibration damper/crankshaft speed in-
dicator ring so the TDC indicator is at the 12
o'clock position. If both number 1 cylinder rock-
et levers are loose, move to the following steps.
If both number 1 cylinder rocker levers are not
loose, rotate the crankshaft 360 degrees.
If no TDC mark is present on either the
vibration damper or the crankshaft
speed indicator ring, align the large gap
in the crankshaft speed indicator ring to
the 5 o'clock position (2). The dowel pin
will be visible in the 9 o'clock position
(1). Check that both number 1 cylinder
rocker levers are loose. If they are not
loose, rotate the crankshaft 360 de-
grees and check again.
(11) With the engine in this position, lash can be
checked on the following rocker arms.
(E=exhaust, I=Intake)
Four-cylinder 1I, 1E, 2I and 3E)
Six-cylinder 1I, 1E, 2I, 3E, 4I and 5E)
Lash check limits
Item mm inch
Intake
Min 0.152 0.006
Max 0.381 0.015
Exhaust
Min 0.381 0.015
Max 0.762 0.030
Checking the overhead setting is usual-
ly performed as part of a troubleshoot-
ing procedure, and resetting is not re-
quired during checks, as long as the
lash measurements are within the
above ranges.
The clearance is correct when some re-
sistance is "felt" when the feeler gauge
is slipped between the crosshead and
the rocker lever socket.
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