Mitsubishi 4G1 Service Manual page 274

ring gap
Piston Ang
TSB
INSPECTION
PISTON RING
groove. If the limit is exceeded, replace the ring or piston, or
both.
Standard value:
No. 1
No. 2
Limit:
No. 1
No. 2
Install the piston ring into the cylinder bore. Force the ring
down with a piston, the piston crown being in contact with
the ring, to correctly position it at right angles to the cylinder
wall. Then, measure the end gap with a feeler gauge.
If the ring gap is excessive, replace the piston ring.
Standard value:
No. 1
No. 2
Oil
Limit:
No. 1, No. 2 0.8 mm (.031 in.)
Oil
CRANKSHAFT PIN OIL CLEARANCE (PLASTIC GAUGE
METHOD)
(1) Remove oil from crankshaft pin and connecting rod bearing.
(2) Cut the plastic gauge to the same length as the width of
bearing and place it on crankshaft pin in parallel with its axis.
(3) Install the connecting rod cap carefully and tighten the bolts
to specified torque.
(4) Carefully remove the connecting rodcap.
using a scale printed on the plastic ga ge package.
Standard value: 0.02 - 0.05 mm (.OOOS - .0020 in.)
Limit: 0.1 mm (.004 in.)
Revision
0.03 - 0.07 mm (.0012 - .0028 in.)
0.02 - 0.06 mm (.OOOS - .0024 in.)
0.1 mm (.004 in.)
0.1 mm (.004 in.)
0.25 - 0.40 mm (.0098 - .0157 in.)
0.40 - 0.55 mm (.0157 - .0217 in.)
0.20 - 0.60 mm (.0079 - .0236 in.)