Engine
Install the main bearing cap. Tighten the bolts of
the main bearing cap at the moment of 90-
100N.m
by hands. Do not rotate the crank shaft.
Remove the main bearing bolts. Carefully take
out the main bearing cap and arrange them in order.
Read the
bearing clearance according to the ratio
on the envelope of the plastic clearance gauge.
Check the bearing clearance from the third
main
bearing and extend to both sides. The main bearing
clearance shall be 0.011—0.058mm.
Check the bearing clearance of the connecting rod.
Check the bearing clearance of the connecting rod
according to the above methods. The bearing
clearance of the connecting rod shall be 0.006—
0.06mm.
Size of connecting rod journal and connecting-rod bearing shell
Class
Diameter of
connecting rod
journal
(unit: mm)
Thickness of
connecting-rod
bearing shell
(unit: mm)
Standard
47.89—47.91
1.480—1.487
Downsized
by 0.025
47.89—47.91
1.492—1.499
Downsized
by 0.25
47.64—47.66
1.605—1.612
Downsized
by 0.5
47.39—47.41
1.730—1.737
Downsized
by 0.75
47.14—47.16
1.855—1.862
Downsized
by1.0
47.89—46.91
1.980—1.987
A-29
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