Evinrude 4906B 4HP 1969 Owner's Manual page 77

3-36 POWERHEAD
If servicing the 9.5 hp or a 10 hp engine,
the hole in the upper and lower main bearing
MUST index into the pin in the cylinder
block.
Some engines may have a lining arrange-
ment as listed in the heading of this section.
The lining is made in two parts.
liner half into the rod, then
bearings as described in the next paragraph.
The matching liner is to be installed into the
rod cap.
Coat the rod half, of the bearing area,
with needle bearing grease.
grease MUST be used because other types of
grease will not thin out and dissipate.
grease must dissipate to allow the gasoline
and oil mixture to enter and lubricate
bearing. If needle bearing grease is not
available, use a good grade of petroleum
jelly (Vasoline).
Load the rod half of the rod bearing with
needle bearings. Next, bring the rod up to
the crankshaft rod journal.
shaft journal with needle bearing grease.
Place the needle bearings around the crank-
shaft jounal.
Position the rod cap, with the liners (if
used) over the needle bearings.
rod cap bolts and lockwasher s,
bol ts up fingertight,
more.
If the liners are used, the cap and rod
automatically align properly.
not used, a dowel pin is installed in the rod
cap. This pin will index into a hole in the
rod for proper alignment.
Tighten the rod cap bolts alternately
evenly in three rounds to the torque value
given in the Specifications
Tighten the bolts to
the first round, to
Needle bearings installed
around the crankshaft.
Install the
install the
Needle bearing
The
the
Coat the crank-
Install the
Bring the
and then just a bit
If liners are
in the Appendix.
1/2 the torque value on
3/4 the torque value on
in the rod cap liner
Rod cap
crankshaft.
the second round, and to the full torque
value on the third and final round.
round, check with the pick to be sure the
cap remains seated squarely.
After the rod cap bolts have been tight-
ened to the required torque value and the
installation
bolt locking tabs upward to prevent
bol ts f rom loosening.
Install the other rod
manner.
After the rods have been connected
the crankshaft,
the rings on one cyllnder are visible through
the exhaust port.
push on each ring to be sure it has spring
tension. It will be necessary
piston slightly, because all of the rings will
not be visible at one time.
spring tension, the ring was broken during
and installation.
and a new ring installed.
test at the intake port.
cylinderls
The locking tabs must be bent upward
and cap bolts have been tightened
value.
with
liner ready for installation
appears satisfactory,
capls
rotate the crankshaft
Use a screwdriver
If there is no
The piston must be removed
Repeat the tension
Check the other
in the same manner.
to
the proper
around the
On each
bend the
the
in the same
to
until
and
to move the
after
the rod
torque