6A – 36 GENERAL ENGINE MECHANICAL
Main Bearing
Bore Diameter mm (in.)
Crankshaft
Main Journal Diameter mm (in.)
Size Mark Inside Diameter Size Mark Outside Diameter
Crankshaft
Bearing
Size Mark
Oil Clearance
mm (in.)
1 or -
69.927~69.942
(2.7530~2.7536)
Black
0.035~0.061
(0.0014~0.0024)
2 or -
69.922~69.927
(2.7528~2.7530)
0.032~0.058
(0.0013~0.0023)
1
73.987~74.000
(2.9129~2.9134)
3 or -
69.917~69.922
(2.7526~2.7528)
Blue
0.037~0.063
(0.0015~0.0025)
1 or -
69.927~69.942
(2.7530~2.7536)
0.031~0.056
(0.0012~0.0022)
2 or -
69.922~69.927
(2.7528~2.7530)
Green
0.036~0.048
(0.0014~0.0019)
2
73.975~73.987
(2.9124~2.9129)
3 or -
69.917~69.922
(2.7526~2.7528)
Black
0.033~0.058
(0.0013~0.0023)
REASSEMBLY
13. Crankshaft
• Install the main bearings to the cylinder body and the
main bearing caps.
• Be sure that they are positioned correctly.
• Apply new engine oil to the upper and lower main
bearing faces.
• Carefully mount the crankshaft.
• Apply engine oil to the thrust washer.
• Assemble the thrust washer to the No.3 bearing
journal. The oil grooves must face the crankshaft.
6A-36-1.tif
6A-36-2.tif
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