Crankshaft Installation Small Horsepower; Crankshaft Installation - Evinrude 4906B 4HP 1969 Owner's Manual

INCORRECT
line without any feeling of catching.
step on the outside will mean a step on the
inside of the rod and cap. Just a whisker of
a lip, will cause one of the needle bearings
to catch and fail to rotate.
quickly flatten, and the rod will begin to
"knock". Needle bearings
the function of the bearing is lost.
Tighten the rod cap bolts alternately
evenly in three rounds to the torque value
given in the Torque Table in the Appendix.
Tighten the bolts to 1/2 the torque value on
the first round, to
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.
Install the other rod cap/s in the same
manner.
After the rods have been connected
the crankshaft, rotate
the rings on one cylinder are visible through
the exhaust port.
Checking the flexibility
exhaust port.
CORRECT
Any
The needle will
MUST rotate
the torque value on
3/4-
On each
the crankshaft until
Use a screwdriver
of
the rings through
push on each ring to be sure it has spring
tension.
piston slightly, because all of the rings will
not be visible at one time.
spring tension,
installation.
and a new ring installed.
test at the intake port.
cylinder/s in the same manner.
CRANKSHAFT
SMALL HORSEPOWER
1.5 HP W/TOP
AND BABBITT CTR.
9.5 HP W/TOP
BRG. AND CTR.
5.0 HP, 5.5 HP, AND 6.0 HP W/ALL
BABBITT MAIN BEARINGS
This section
tions to install a small horsepower
shaft with any of the bearing combinations
listed in the heading.
or covered in these paragraphs have rod liners,
others do not as follows:
and
With rod bearing liner --
5.5 hp, 6 hp, and 9.5 hp from 1956 thru 1960.
With no rod bearing liner -- 5.5 hp and 10
hp 1961 thru 1964-.
The procedures
the piston/s have been installed,
ed earlier in this section.
Lower the crankshaft
cylinder block with the long threaded
end at the top of the cylinder block. (It is a
to
known fact, in more than just a few shops
around the country,
crankshaft
and
with the short end at the top.)
the
Rod and cap with the alignment
CYLINDER
It will be necessary
If there is no
the ring was broken during
The piston must be removed
Repeat the tension
Check the other
INSTALLATION
ENGINES
NEEDLE MAIN BRG.
AND BOTTOM
AND BOTTOM NEEDLE
BABBITT BRG.
provides detailed
Some of the engines
pickup the work after
into place in the
because
installation work has proceeded
marks visible.
BLOCK 3-35
to move the
instruc-
crank-
1.5 hp, 5.0 hp,
as describ-
shank
of haste, the