CONNECTING RODS, PISTONS, RINGS & SLEEVES
Reassemble Connecting Rods, Pistons and Rings as
Install new connecting rod piston pin bushing using a
suitable arbor press. Bore or hone the new bushing
1.6256 - 1.6258 in.
41.2902 - 41.2953 mm after assembly.
Generously coat the piston bore and piston pin with
MOLYKOTE G-n paste or Fel-Pro C-670.
Insert the pin end of the connecting rod (6, Fig. 29)
into the piston (7), aligning bored holes of the rod
and piston (the short side of the split on the crank
end of the rod is to be toward the side of the piston
Align the bushing in the rod with the piston pin holes
in the piston and push the piston pin (5) completely
into position. (Pin is a loose fit at 21° C (70°F).
Squeeze the pronged ends of the piston pin retainer
rings (4) and install a ring in the groove at each end
of the piston to secure the piston pin.
Using a piston ring expander, install the rings into the
grooves of the pistons.
The compression rings (grooves Nos., 1 and 2)
must be installed as directed by the word TOP,
UP or PIP mark stamped on the edge. The
tapered face second compression rings must
have the WITNESS MARK (shiny part) towards
the bottom of the piston.
The oil-regulating ring (groove No. 3.can be
installed with either face up. The oil-regulating
ring coil spring must be installed in the groove
before the ring.
Position the split of the TOP ring 30° from the piston
pin bore. Position the split of the second ring 180°
from the top ring and position the split of the oil ring
90 from the second.
Figure 29. - Rod, Piston and Rings Reassembly
1. Top compression ring
2. Intermediate compression ring
3. Oil control ring
4. Retaining ring
5. Piston pin
6. Connecting rod
PRINTED IN UNITED STATES OF AMERICA