Next, correct the vertical misalignment by either driving a
wedge [A] in between the crank halves or by squeezing
them in a vice, depending on the nature of the misalign-
Do not hammer the crank half at the point [B].
If flywheel misalignment cannot be corrected by the above
method, replace the crank pin or the crankshaft itself.
Connecting Rod Big End Seizure Inspection
In case of serious seizure with damaged flywheels, the
crankshaft must be replaced.
In case of less serious damage, disassemble the crank-
shaft and replace the crankpin, needle bearing, and con-
Connecting Rod Bend Inspection
Remove the connecting rod.
Select an arbor [A] of the same diameter as the connect-
ing rod big end, and insert the arbor through the connect-
ing rod big end.
Select an arbor of the same diameter as the piston pin and
more than 105 mm long, and insert the arbor [B] through
the connecting rod small end.
On a surface plate, set the big-end arbor on a V block [C].
With the connecting rod held vertically, use a height
gauge to measure the difference in the height of the
arbor above the surface plate over a 100 mm length to
determine the amount of connecting rod bend.
If connecting rod bend exceeds the service limit, the con-
necting rod must be replaced.
Connecting Rod Bend
TIR 0.2/100 mm (0.008/3.94 in.)