How To Assemble Main Bearing Metals; Undersizes; Timing Gear; Timing Gear Train - Mitsubishi 4DQ50 Service Manual

5-2 How
to
assemble main bearing metals
Of each pair of main bearing metals, assemble that which has a groove in the middle
that -is, on crankcase up side, especially the other with thrust bearing on the side of
timing gear case. To prevent leak of oil, give a thin coating of liquid packing to their
contact surfaces with main bearing cap cases on both ends. For connecting rod bearings,
either of the pair can be assembled upon the other.
5-3 Undersizes
To both main bearings and connecting rod bearings, metals must be renewed when
their clearances exceeded O.2mm. When replacement of metals not considered to
produce satisfactory results because of crank shaft being unevenly worn or streaked
deep, grind it so much as to fit to any of undersize metals which are available in three
sizes; -0.25, -0.50 and -0.75.
6 TIMING GEAR
6-1 Timing gear train ___
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Fig.5-10 Timing gear train
- 74-
I dl er Autotimer jet
(WI
43 teeth)
(not provided but
for autotimer)