(3) Conn. rod bearing crush can be
checked as follows:
Install the bearing and cap in the
conn. rod big end, retighten the bolts
to specified torque, unscrew out one
bolt completely, then measure the
clearance between the bearing cap
and conn. rod big end using a feeler
gauge.
- 57 -
EDM2049I
<Figure 3-21> Conn. rod bearing crush
4) Measurement of crank shaft end play
(1) Assemble the crankshaft to the cylin-
der block.
(2) With a dial gauge, measure crank
shaft end play.
EPM2018S
<Figure 3-22> Measuring crankshaft end play
3.2.8. Piston
1) Visually check the pistons for cracks,
scuff or wear, paying particular attention
to the ring groove.
2) Measurement of the clearance between
the piston and cylinder liner.
(1) With an outside micrometer, mea-
sure the piston outside diameter at a
point 18mm away from the lower end
of piston skirt in a direction at a right
angle to the piston pin hole.
EQM3051S
<Figure 3-23> Measuring piston outside
diameter
<Figure 3-24> Measuring cylinder liner inside
diameter
(2) Using a cylinder bore gauge, mea-
sure cylinder liner inside diameter at
3 points (cylinder top ring contacting
face, middle, and oil ring contacting
face on BDC) in a direction at an
angle of 45°. Take the mean value
with the largest and smallest values
excepted.
2
EQM3052I
Position of measuring
outside diameter
