Mitsubishi 4G1 Service Manual page 494

ENGINE <1993> - Cylinder Head and Valves
REMOVAL SERVICE POINTS
PRECAUTION FOR REMOVED PARTS
(1) Keep removed parts in order according to the cylinder
number and intake/exhaust.
(1) &sing the 12 mm - 12 points socket wrench, loosen the
cylinder head bolts. Loosen evenly, little by little.
RETAINER LOCK REMOVAL
(1) Store removed valves, springs and other parts, tagged to
indicate their cylinder No. and location for reassembly.
TSB Revision
CYLINDER HEAD BOLTS REMOVAL