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There is a special thrust bearing
NOTE:
(insert) located in the No.
housing in the upper crankcase. The function
of this insert is t o provide a bearing surface
for crankshaft side thrust.
c. When assembling, apply a liberal coat of
motor oil t o all bearing surfaces.
d. Observe
normal
torque sequence.
J. Connecting Rod
1 . Remove rod cap securing nuts, rod cap and
inserts.
2. Inspection
a. Examine bearing inserts for scratches, flaking
or other obvious signs of wear or damage. If
the inner or outer surfaces are worn or dam-
aged, the inserts should be replaced.
b. Examine the connecting rods and crankshaft.
3. Measure Rod Bearing Clearance
Measurement o f rod bearing clearance is
similar to main bearingclearance measurement.
a. Clean a ll bearing surfaces.
b. Place a piece of Plastigauge on connecting rod
cap. Place cap on crankshaft journal. Do not
allow the cap t o move. Install special bolts and
apply molybdenum
threads. Install rod cap and nuts. Tighten rod
caps evenly t o specified torque:
Rod cap torque: 3.8 kg-m (27 ft-lbs)
main bearing
3
crankcase
holding bolt
grease t o the
c. Remove connecting rod and cap. Measure
width of Plastigauget o determine oil clearance.
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Oil clearance (rod):
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.032~.054mm (.001~.002 in.)
d. Remove Plastigauge from bearing surfaces.
4. Selecting Rod Bearing Inserts
a. Connecting rod size numbers are indicated by
4. 5 or
6
and are marked in ink on the con-
necting rods and caps.
b. The rod bearing journal size numbers are indi-
1, 2
cated by
or 3 and are stamped on the left
end of the crankshaft,
c. The proper insert selection is made by sub-
tracting the rod size number from the crank-
shaft journal number. Use the color code t o
choose the proper insert.
Rod No. (Minus)
5
-
No. 3
insert is Brown. Use brown bearing inserts.
Insert No.
Journal No.
=
2
=
3
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