Mitsubishi 6M70 Workshop Manual page 27

• Before inserting a feeler gauge, push the adjusting screw pad on
the side opposite from where a feeler gauge is to be inserted, as
shown in the illustration, using a flat-blade screwdriver or other
similar tool. This will create space necessary for the gauge to be
inserted.
• The measurement is correct when the feeler gauge feels slightly
resisted as it is inserted.
• The measurement is not yet correct if the feeler gauge can still
be inserted smoothly.
• If the measurement deviates from the standard value, adjust as
follows.
[Adjustment]
• Loosen the lock nuts and adjusting screws on the valve bridge
and rocker arm.
• While holding the valve bridge by hand, screw in the adjusting
screw until it lightly contacts the valve stem end.
• Then, further screw in the adjusting screw by 45°.
• While holding the adjusting screw in this position, tighten the
lock nuts to the specified torque.
CAUTION
• After adjusting the adjusting screw, be sure to tighten the
lock nut to the specified torque. Insufficient torquing will
compromise the parallelism of the valve bridge, damaging
the valve mechanism.
11
11-17