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4. ENGINE
1. Clean the crankpin and crankpin bearing.
2. Put a strip of plastigauge on the center of the
crankpin.
NOTE
• Do not put the plastigauge into the crankpin
oil hole.
3. Install the connecting rod cap.
4. Tighten the connecting rod screws to the specified
torque.
NOTE
• When you tighten the connecting rod
screws, do not move the crankshaft.
Tightening tor-
Connecting rod
que
screw
5. Remove the connecting rod cap again.
6. Measure the width that it becomes flat with the
scale to get the oil clearance.
NOTE
• If the clearance more than the service limit,
replace the crankpin bearing.
• If the same dimension bearing is not
applicable because of the crankpin wear,
replace it with an undersize one.
Service specifi-
Crankpin O.D.
cation
Crankpin bearing
Service specifi-
I.D.
cation
Service specifi-
Oil clearance be-
cation
tween crankpin
and crankpin bear-
Service limit
ing
(Reference)
• Undersize dimensions of crankpin
4-66
42 to 46 N⋅m
4.3 to 4.6 kgf⋅m
31 to 33 lbf⋅ft
39.959 to 39.975 mm
1.5732 to 1.5738 in.
40.040 to 40.050 mm
1.5764 to 1.5767 in.
0.029 to 0.091 mm
0.0011 to 0.0036 in.
0.20 mm
0.0079 in.
0.20 mm
Undersize
0.0079 in.
2.8 to 3.2 mm radius
Dimension A
0.11 to 0.12 in. radius
Dimension
1.0 to 1.5 mm relief
*
B
0.040 to 0.059 in. relief
39.759 to 39.775 mm
Dimension
dia.
C
1.5654 to 1.5659 in.
dia.
The crankpin must be fine-finished to higher than Rmax = 0.8 S
*
Holes to be de-burred and edges rounded with 1.0 to 1.5 mm
(0.040 to 0.059 in.) relief.
A:
Dimension A
B:
Dimension B
6.33 Checking oil clearance between
crankshaft journal and crankshaft
bearing 1
Tools required
• Inside micrometer
• Outside micrometer
SERVICING
6. Servicing
0.40 mm
0.016 in.
2.8 to 3.2 mm radius
0.11 to 0.12 in. radius
1.0 to 1.5 mm relief
0.040 to 0.059 in. relief
39.559 to 39.575 mm
dia.
1.5575 to 1.5580 in.
dia.
C:
Dimension C
05-E4B SERIES,05-E4BG SERIES
KiSC issued 03, 2023 A
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