Assemble the bearing at the bigger
end of connecting rod, and after
tightening the bearing cap at the
specified torque, measure the inside
diameter
Crankshaft pin and bearing clearance In case that this clearance value exceeds the limit
value, grind the crankshaft journal and pin and then use the undersized bearing.
b) How to utilize plastic gauge
Install the crankshaft in the cylinder block and place the plastic gauge on the crankshaft
journal and pin at axial direction and then after tightening the bearing cap at the specified
torque and again after tearing apart the bearing cap, measure the flatten plastic gauge
thickness by pick it up. This is the oil clearance.
With the same points, the oil clearance of connecting rod also can be measured.
End play
•
Assemble the crankshaft in the
cylinder block.
•
Install the dial gauge, and measure
the end play of crankshaft by pushing
the crankshaft to axial direction.
- 87 -
2
3
1
Connecting rod
89.98 ~ 90.00 mm
bearing journal diameter
Connecting rod
Initial 10 kg.m + Angle90
˚
Bolt torque
Standard
Limit
0.066 ~ 0.132 mm
0.166 mm
A
8
8
Section
A-B
B
1
2
3
10
10
EFM2049I
2
Standard
Limit
0.190 ~ 0.322 mm
0.452 mm
EFM2050I
