Hudson 1955 Rambler, Техническое и сервисное руководство

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E N G I N E 6 C Y L I N D E R
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FIGURE 31— Burnishing Connecting Rod
Bushing "Hornet" and "Wasp" Series
1. Locking Bolt and Notch
2. Piston Pin
FIGURE 32— Piston Pin "Rambler" Series
fit or .0002" maximum loose fit in piston at
room temperature (70°F.).
The standard piston pin dimensions are:
Length 2.755", Diameter .8598"-.8595".
Tighten piston pin clamp screw to 18-22
foot pounds torque.
CONNECTING RODS
"Hornet" and "Wasp" Series
The connecting rods have oil squirt holes to
provide cylinder wall lubrication, at low and
idle speed, to the thrust side of the
cylinders. An oil hole on the top of the rod
supplies lubrication to the piston pins.
When installing connecting rods, the
squirt hole is toward the camshaft side
(thrust side) of the engine.
The cylinder location numbers are stamped
on the connecting rod and caps during initial
assembly.
"Rambler" Series
Two oil squirt holes are provided in the
upper rod cap section for cylinder wall
lubrication at low and idle speeds.
The notch on the top perimeter of the
piston and the identification boss on the
connecting rod (Fig. 33) must be installed
to the front of the engine.
1. Identification Boss
FIGURE 33— Connecting Rod Identification
Boss "Rambler" Series
The connecting rods are stamped by cylin-
der number location during initial assembly.
Always assemble the rods and caps with the
cylinder location numbers on the same side.
Connecting Rod Alignment
Whenever new rings are installed or new
piston pins are replaced, it is necessary to
align the connecting rods and pistons, as
assemblies, to insure true operation in the
cylinder bore.
Misaligned rods will cause uneven piston
and ring wear which will result in oil
consumption and noise. The connecting rod
should be inspected for a twisted or bent
condition (Figs. 34 and 35).
Always bend beyond the true alignment
position and then bend back to straighten so
the stresses and strains in the rod material
are relieved. If the stresses are not
relieved, the rod will not hold its alignment
after installation in the engine.