Superior Vantage Engine O-360 SERIES Maintenance Manual page 82

Assembly of Cylinder and Related Parts
Rotate the crankshaft so that the connecting rod
of the new cylinder is at the top of the
compression stroke. To make sure it is at the
top, place two fingers on the intake and exhaust
tappet bodies and rotate the crankshaft back
and forth over the top center.
bodies do not move, the crankshaft is at the top
of the compression stroke.
•
Place each plunger
appropriate tappet body and assemble the
socket on top of the plunger assembly.
•
Assemble the piston with the rings so that
the number stamped on the piston pin boss
is toward the front of the engine. The piston
pin should be a hand-push fit.
generous quantity of oil in the piston hole
and on the piston pin during assembly.
•
Place a new rubber oil seal ring around the
cylinder skirt. Coat the inside of the
cylinder, piston, and rings generously with
straight-weight, non-detergent oil.
•
Using a piston ring compressor, assemble
the cylinder over the piston with the intake
port at the bottom of the engine. Refer to
Figure 72-30-00.3. Push the cylinder all the
way on and catch the ring compressor as it
is pushed off. Before installing the cylinder
hold-down nuts, lubricate crankcase through
stud threads with either 85% SAE 50W
engine oil and 15% STP, or Parker Thread
Lube, or 60% SAE 30W engine oil and 40%
Parker Thread Lube.
•
Assemble cylinder base hold down nuts and
tighten as follows.
torque the through studs on the cylinder on
the opposite side of the engine any time a
cylinder is replaced.
nuts to 300 inch-pounds torque, using the
© February 2007 Superior Air Parts Inc.
Maintenance Manual
O-360 and IO-360 Series Engines
If the tappet
assembly in its
Use a
It is necessary to re-
Tighten the 1/2-inch
sequence shown in Figure 72-30-00.4.
Using the same sequence, tighten the 1/2-
inch nuts to 600 inch-pounds torque.
Tighten the 3/8-inch hold down nuts to 300
inch-pounds torque in any sequence. As a
final check, hold the torque wrench on each
nut for about five seconds. If the nut does
not turn, it is tightened to the correct torque.
•
Install new shroud tube oil seals on both
ends of the push rod tube. Install the push
rod tube and lock it in place with a new
lockplate, spring, and nut. Refer to Figure
72-30-00.6.
•
Install each push rod in its respective push
rod tube. Install each in its respective
position by placing the rocker between the
bosses and sliding the valve rocker shaft in
place to retain the rocker.
shaft "thrust buttons" are installed in shaft
ends. Place the rotator cap over the end of
the exhaust valve stem before installing the
exhaust valve rocker. Refer to Figure 72-
30-00.6.
•
Be sure that the piston is at the top center of
the compression stroke and that both valves
are closed. Check the clearance between
the valve stem tip and the valve rocker arm.
Check the clearance by pushing your thumb
down on the rocker push rod end to
compress the hydraulic tappet spring. Refer
to Figure 72-30-00.6.
spring compressed, the valve clearance
should be between 0.028 and 0.080 inch.
Replace push rod with a longer or shorter
push rod, if required, to correct the
clearance.
•
Install the intercylinder baffles, rocker box
covers, intake pipes, rocker box drain tubes,
and exhaust manifold. Refer to Figure 72-
30-00.1.
2
Ensure rocker
While holding the
72-30-00
Cylinder Section