combustion;
thus,
a~id
will be form
ed
and
is likely
to
cause
serious etching
or
pitting. This etching,
pitting
or
corrosion,
when
using fuel containing considerable
sulphur,
manifests
itself
in
excessively
r~pid
wear
on piston pins, camshaft
bear-
ings
and
other
moving
parts
of
the
engine, oftentimes causing
the
owner
to
blame
the
truck
manufacturer
or
the
lubricating
oil
when
in
reality
the
trouble
may
be
traced
back
to
the
character
of fuel used,
or
a condition of
the
engine,
such
as
excessive blow-by
or
improper
carburetor
adjustment.
Water Pump
The
permanently
sealed
ball
bearing
water
pump
does
not
require
lubrication
by
the
truck
owner.
Starting
Motor
Starting
Motor
end
frame
s
are
equipped
with
oil-less
bear-
ings ,which do
not
require
lubri
cant.
Generator
Every
1,
000
miles
put
a few drops of a Ught oil,
or
engine
oil, in
the
2 oil cups.
Distributor
Lubricant
cup
located on side of housing is filled
with
chassis
lubricant.
Turn
cup
down
one
turn
every
1,
000
miles.
Distribu-
tor
cap
should
be
removed
every
5,000 miles,
then
remove
rotor
and
place a few dr9PS of
SAE
10 engine oil on felt wicking in
top
of cam. Apply a small
amount
of
petroleum
jelly
on
distributor
cam
surface
by
holding a
clean
cloth which
has
been
soaked
in
jelly against
it
wh
ile
cranking
s
tarter.
REAR AXLE AND TRANSMISSION
The
lubrication
requirements
of
Heavy-Duty
Hypoid
Truck
Axles differ
somewhat
from
the
Passenger
Car
Hypoid Axle.
The
truck
operates
under
the
most severe lubricati
on
condi-
tions
in
low
gear
under
he
avy load while
the
passenger
car
operates
under
the
most
severe
lubrication conditions
at
high
speed.
'77-
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