Crankshaft Installation; Large Horsepower; Hp To 40 Hp - Evinrude 4906B 4HP 1969 Owner's Manual

Crankshaft with the upper, lower,
bearings installed. Notice
pins in
Matching the cylinder
these holes during crankshaft
CRANKSHAFT INSTALLATION
LARGE HORSEPOWER

15 HP TO 40 HP

The following procedures outline steps to
install a crankshaft
ter, and lower main bearings.
lower mains are complete
not be disassembled.
caged. Installation
horsepower crankshafts
lower, and center main bearings
babbitt rod bearings are given in the follow-
ing sections.
Observe the pin installed
bearing recess. Notice
main bearing outer shell.
tion, the hole in each bearing shell
index over the pin in the cylinder block.
Hold the crankshaft
block wi th the upper
Now, lower the crankshaft
and at the same time, align the hole in each
bearing to enable the pin in the block to
Bearing locating pins in
into a
must index hole
illustration at the top of this column.
and center
the hole in each bearing.
index
block must
installation.
ENGINES
with needle upper, cen-
The upper and
bearings and can-
The center bearing is
procedures for small
with babbitt upper,
and with
in each main
the hole in each
During installa-
MUST
over the cylinder
end to your LEFT.
into the block,
the cylinder block. Each
in in
the bearing shown
main
into
Crankshaft
index with the hole.
slightly until all pins are properly
with the matching
pins are indexed,
properly seated.
Apply needle
bearing cage.
bearing area
Needle bearing
cause other types of grease will not thin out
and dissipate.
allow the gasoline and oil mixture to enter
and lubricate
grease is not available,
petroleum jelly (Vasollne).
Insert the proper number of needle bear-
ings into each cage.
into the bottom half of the rod.
fingers on each side of the rod, pull up on
the rod and bring the rod up to the bottom
pin
and
the Cage needle bearings installed
of
portion the rod.
CYLINDER BLOCK
installed into the cylinder block.
Rotate each bearing
bearing hole.
the crankshaft
bearing grease
Coat the rod half of the
with needle bearing
grease MUST be used be-
The grease must disipate
the bearing. If needle bearing
use a good grade of
Set the bearing cage
into the lower
3-33
indexed
Once all
will be
to each
grease.
to
With your