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.
Install the
liner
half
into
the
rod,
then
install
the
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.
Needle bearing
grease
MUST
be used because other types of
grease
will not thin out and dissipate.
The
grease
must dissipate
to allow the gasoline
and oil mixture
to enter
and lubricate
the
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.
Coat the crank-
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.
Install
the
rod cap bolts
and lockwasher s,
Bring the
bol ts
up fingertight,
and then
just
a
bit
more.
If the
liners
are
used, the
cap and rod
automatically
align properly.
If liners
are
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
and
evenly in three
rounds to the torque
value
given in the Specifications
in the Appendix.
Tighten the bolts to
1/2
the torque value on
the first
round, to
3/4
the torque
value on
Needle
bearings
installed
in
the rod
cap liner
and
around the crankshaft.
Rod cap
with
liner
ready for
installation
around the
crankshaft.
the
second
round,
and
to
the
full
torque
value on the third and final round.
On each
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
appears
satisfactory,
bend
the
bolt
locking
tabs
upward
to
prevent
the
bol
ts f rom loosening.
Install
the other
rod
capls
in the same
manner.
After
the
rods have been connected
to
the
crankshaft,
rotate
the
crankshaft
until
the rings on one cyllnder are visible through
the
exhaust
port.
Use a screwdriver
and
push on each
ring to be sure it has spring
tension.
It will be necessary
to move the
piston slightly,
because
all of the rings will
not be visible at one time.
If there
is no
spring
tension,
the
ring was broken
during
installation.
The piston
must
be removed
and a new ring installed.
Repeat the tension
test
at the
intake
port.
Check
the
other
cylinderls
in the same manner.
The locking
tabs must be bent upward
after
the rod
cap bolts
have been
tightened
to
the
proper
torque
value.
Содержание 4906B 4HP 1969
Страница 5: ......
Страница 85: ...3 44 POWERHEAD EXHAUST COVER I LEVER Exploded drawing of a 5 5 hp powerhead 1956 60 principle parts identified...
Страница 87: ...3 46 POWERHEAD Exploded drawing of a 7 5 hp powerhead 1956 58 with principle parts identified...
Страница 88: ...CYLINDER BLOCK 3 47 HEAD GASKET RING...
Страница 89: ...3 48 POWERHEAD HEAD BYPASS COVER Exploded drawing of a 10 hp powerhead 1956 63 with principle parts identified...
Страница 90: ...CYLINDER BLOCK 3 49 THERMOSTAT EXHAUST COVER The...
Страница 137: ...4 46 FUEL LEVER AND LOW SPEED...
Страница 153: ...4 62 FUEL Exploded view of a pressure tyoe fuel tank with major parts identified...
Страница 157: ...4 66 fUEL...
Страница 177: ...5 18 IGNITION FLYWHEEL Exploded drawing of a typical magneto system Only one coil and set of points is shown...
Страница 271: ...8 12 LOWER UNIT PROPELLER Exploded drawing of the Weedless lower unit gear case with major parts identified...
Страница 285: ...8 26 LOWER UNIT Exploded drawing of a lower unit with a window for access to the shift connector...
Страница 412: ...A 16 APPENDIX Wire Identification 33 hp with Generator 1965 67...
Страница 413: ...APPENDIX A 17 o C...
Страница 414: ...Wire Identification 33 hp with Generator 1969 70...
Страница 415: ...APPENDIX A 19 Wire Identification 35 hp 1957 59...
Страница 416: ...A 20 APPENDIX Wire Identification 40 hp Standard Shift with Generator 1960 66...
Страница 417: ...APPENDIX A 21 UJ cc b Wire Identification 40 hp Standard Shift with Generator 1967 68...
Страница 418: ...A 22 APPENDIX ee I U Vl Z Z o U I I Wire Identification 40 hp Standard Shift With Generator 1969 10...
Страница 419: ...APPENDIX Wire Identification 40 hp Electric Shift with Generator 1961 66 A 23...
Страница 420: ...A 24 APPENDIX C 00 Wire Identification 40 hp Electric Shift with Generator 1967 68...
Страница 421: ...Wire Identification 40 hp Electric Shift with Generator 1969 70...
Страница 422: ...NOTES NUMBERS...