Daihatsu F300 Service Manual page 1274

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(8) Install the connecting rod cap, making sure that the
mate marks are lined up. Tighten the connecting rod
bearing cap nuts evenly over two or three stages to the
specified torque.
Tightening Torque: 34.3 - 44.1 N-m (3.5 - 4.5 kgf-m)
NOTE:
• When tightening the bearing
cap
nuts. apply engine oil
to
the bearing
cap
nuts.
• Prevent the crankshaft from turning, using the following
SST.
SST: 0921 0-87701-000
(9) Loosen the connecting rod bearing cap nuts evenly
over two or three stages. Then, remove the connecting
rod bearing cap.
NOTE:
• Prevent the crankshaft from turning, using the SST .
SST: 0921 Q-87701-QOO
(10}Measure the plastigage width at its widest point.
Oil Clearance: 0.020 - 0.044 mm
NOTE:
• If the oil clearance fails
to
conform
to
the specffied vaiue.
measure the crankpin journal diameter and select a
suitable connecting rod bearing or replace the
crankshaft.
(11)Remove the plastigage from the crankpin journal.
(12)Measure the oil clearances of the remaining crankpin
journals.
4. Selection of connecting rod bearings
NOTE:
• The replacement of the connecting rod bearings should
be performed after all inspections have been finished.
(1) Read the connecting rod b"1g end bore code number.
NOTE:
• The connecting rod big end bore code number comes in
three kinds of 4, 5 and 6.
(2) Measure the diameter of the crankpin journal.
The measurement should be performed at four points,
90 degrees spaced, for each crankpin journal at the
points shown in the right figure. The maximum value is
regarded as the crankpin journal diameter.
However, if the variation in the measured diameters
exceeds 0.044 mm, replace the crankshaft .
EM-133
ENGINE MECHANICALS
Front mark
...,( JJ-...1><' (/
(QK
<=1~p
\
~
""<.\.....---!..
Connecting rod big end
1
bore code number
WF£90.EM418
A B
+
y
4 144 144 144 14
Unit: mm
.,,.,,
.
.,,