Service Manual

PISTON ASSEMBLY
1. Lubricate all parts with engine oil.
2. Position piston on its respective rod and install the
b pin.
3. Install the rings on the pistons starting with the oil
control ring (Figure 26). Use a piston ring spreader
to prevent twisting or excessive expansion of the
ring Compression rings have a dot or the word
“top” on one side of the ring to indicate which side
faces the top of the piston. Unmarked piston rings
can be installed either way. The oil control ring has
an expander; install the expander first and then
close until the expander ends butt. The joint should
be 180 degrees from the gap of that ring.
COMPRESSION
RINGS
CT-1047
FIGURE 26. PISTON RINGS
INSTALLATION OF PISTON IN CYLINDER
1. Turn the crankshaft to position the number one rod
bearing journal at the bottom of its stroke.
2. Lubricate the number one piston assembly and
inside of the cylinder. Compress the rings with a ring
compressor (Figure 27).
3. Position the piston and rod assembly in the cylinder
block. Oil squirt hole of connecting rod must face
camshaft.
4. Tap the piston down into the bore with the handle
end of a hammer until the connecting rod is seated
on the journal (Figure 27). Install the bearing cap on
the rod.
5. Install one fastener and tighten to 5 ft-lbs (7 Nm).
Repeat this for the other fastener. Tighten both
fasteners down to the torque specified in ASSEMBLY
TORQUES.
OIL HOLE* OR
TOWARD
T
* OIL HOLE NOT USED, LATER PRODUCTION
CT-1048
CONNECTING ROD
FIGURE 27. INSTALLING PISTON AND CONNECTING ROD
6. Install the remaining piston and rod in the same
manner. Crank the engine over by hand to see that
all bearings are free.
7. Install the oil cooler with a new gasket.
8. Install the cylinder heads. See Cylinder Headsection
for torques and torquing procedure.
9. Replace oil and break in engine.
lo-16