Mitsubishi 6M70 Workshop Manual page 75

Installation procedure
[Removal]
• If the upper connecting rod bearing is installed on the big end of
the connecting rod, remove the bearing.
• Secure the connecting rod to the base with a bracket and plate.
• Set collar A on the puller in the direction shown in the illustration
and gradually remove the bushing with a press load of approxi-
mately 49 kN {5000 kgf}.
[Installation]
• Apply engine oil to the outer periphery of the connecting rod
bushing and the bushing fitting surface of the connecting rod.
• Fit collar B, the bushing, and collar A over the puller in the direc-
tion shown in the illustration and lock this arrangement together
with the nut.
• Align the oil holes in the bushing and the connecting rod. Then,
use a press to slowly apply a pressure of approximately 49 kN
{5,000 kgf} to the puller until the bushing is forced into place.
• After assembly, measure the clearance again.
• If the measurement is less than the standard value, ream the
bushing.
Inspection: Connecting rod bend and twist
• Mount the connecting rod on the connecting rod aligner. Also
mount the connecting rod bearings, piston pin, and connecting
rod cap to create the same conditions as are expected when the
connecting rod is mounted on a crankshaft. Tighten the nuts of
the connecting rod cap to a torque of 115 N
• Measure the extent of bend and twist in the connecting rod.
• If either measurement exceeds the limit, replace the connecting
rod.
Installation: Mitsubishi 6M70 Connecting rod bolt
• Make sure that bolt holes of the connecting rod are free of flaws
and burrs.
• Apply engine oil to the knurled portion of the connecting rod bolt
and press fit it in the illustrated direction with the maximum press
load of 5880 N {600 kgf}.
11
m {12 kgf m}.
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