76
Step
Removal Parts
Remarks
23
1) Remove main bearing cap bolt. While
shaking main bearing cap, remove main bearing
cap together with lower main bearing metal.
2) Extract crankshaft, taking care not to damage
it.
3) Remove upper main bearing metal.
1) Before extracting crankshaft, measure the
side gap around it.
Apply a dial gauge to the end of crankshaft.
Force the crankshaft on both sides in the axial
direction to measure the thrust gap.
Alternatively, insert a thickness gauge directly
between the base thrust metal and the thrust
surface of the crankshaft to measure the gap.
If the limit size is exceeded, replace the thrust
metal with a new one.
Thrust gap (All models)
2) Notice on the removal of thrust metal.
a) When removing thrust metal, ascertain the
position and direction where thrust metal is
installed in relation to the cap.
b) Make sure that the thrust metal groove is
outward in relation to the cap.
24
1) Remove piston and connecting rod assembly.
1) To selectively remove a desired piston and
connecting rod assembly without extracting
crankshaft, take the steps itemized below:
a) Remove carbon deposits from the upper wall
of the cylinder using fine sandpaper, taking care
not to damage the inner surface of the cylinder.
b) While turning the crankshaft, with the
connecting rod cap removed, raise the piston up
to the top dead center (TDC).
c) Extract the piston/connecting rod assembly
while tapping the connecting rod at the large end
with the handle of a plastic hammer or the like.
25
2) Remove tappet.
