Mitsubishi 3000GT Service Manual page 992

STEERING - Power Steering Oil Pump
Direct round edge
Install the vanes on the rotor, paying close attention to the
installation direction.
INSPECTION
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CHECK OF GAP BETWEEN VANE AND ROTOR
GROOVE
Install vane to rotor groove as illustrated. Measure the gap
between vane and rotor groove with thickness gauge.
Limit: 0.06 mm (.0024 in.)
TSB Revision
Check the flow control spring for wear.
Check the shaft of the pulley for play and round movement.
Check the groove of rotor vane for "stepped" wear.
Check the contact surface of cam ring and vanes for
"stepped" wear.
Check the vanes for breakage.