Checking Oil Clearance Between Crankpin And Crankpin Bearing; Checking Oil Clearance Between Crankshaft Journal And Crankshaft Bearing 1 - wsm 03-CR-E4 Workshop Manual

4. ENGINE
RELATED PAGE
4.30 Measuring angular deviation between crankshaft
T.D.C. and crankshaft position sensor detected T.D.C.
on page 4-112
7.1 Checking cylinder head top clearance on page
4-163
7.32 Checking oil clearance between
crankpin and crankpin bearing
Tools required
• Plastigauge
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
4-180
40.0 to 45.0 N⋅m
4.08 to 4.58 kgf⋅m
29.5 to 33.1 lbf⋅ft
46.959 to 46.975 mm
1.8488 to 1.8494 in.
47.000 to 47.046 mm
1.8504 to 1.8522 in.
0.025 to 0.087 mm
0.00099 to 0.0034 in.
0.20 mm
0.0079 in.
(Reference)
• Undersize dimensions of crankpin
0.2 mm
Undersize
0.008 in.
3.3 to 3.7 mm radi-
us
Dimension A
0.13 to 0.14 in. radi-
us
1.0 to 1.5 mm relief
*
Dimension B 0.040 to 0.059 in.
relief
46.759 to
46.775 mm dia.
Dimension C
1.8409 to 1.8415 in.
dia.
The crankpin must be fine-finished to higher than Rmax = 0.4 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
7.33 Checking oil clearance between
crankshaft journal and crankshaft
bearing 1
Tools required
• Inside micrometer
• Outside micrometer
SERVICING
7. Servicing
0.4 mm
0.02 in.
3.3 to 3.7 mm radi-
us
0.13 to 0.14 in. radi-
us
1.0 to 1.5 mm relief
0.040 to 0.059 in.
relief
46.559 to
46.575 mm dia.
1.8331 to 1.8336 in.
dia.
C: Dimension C
03-CR-E4,03-CR-TE4BG
KiSC issued 02, 2021 A