Mitsubishi 4G6 Series 1991 Specifications download pdf (Page 100)

4G6 ENGINE (E-W) -

Piston and Connecting Rod

11A-11-8

(3) Install the piston ring into the cylinder bore. Force it down

with a piston, its 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 ring 0.25 - 0.35 mm

No. 2 ring 0.40 - 0.55 mm

Oil ring 0.10 - 0.40 mm

Limit:

No. 1, No. 2 ring 0.8 mm

Oil ring 1.0 mm

CRANKSHAFT PIN OIL CLEARANCE

(PLASTIC GAUGE METHOD)

(1) Remove oil from the crankshaft pin and connecting rod

bearing.

(2) Cut the Plastigage to the same length as the width of

the bearing and place it on the crankshaft pin in parallel

with its axis.

(3) Install the connecting rod cap carefully and tighten the

nuts to specified torque.

(4) Carefully remove the connecting rod cap.

(5) Measure the width of the Plastigage at its widest part

by using a scale printed on the Plastigage package.

Standard value: 0.02 - 0.05 mm

Limit: 0.1 mm

PWEE9616

Dec. 1996Mitsubishi Motors Corporation

Plastigage

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Mitsubishi 4G6 Series 1991 Specifications Page 100