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PART
1- 1-GENER
Al ENGINE SERVICE
EJ
OIL
PAN,
O
IL
PUMP, AND
OIL
COOLER
O IL PAN
Scrape any
dirt
or
metal particles
from the inside of the
pan. Scrape
all old
gasket
material
from
the
gas-
ket surface. Wash
the
pan in a
sol-
vent and
dry
it
thoroughly. Be
sure
all
foreign matter is removed from
below
the baffle plate.
Check
the pan for
cracks,
holes,
damaged
drain
plug threads,
a
loose
baffle, and
a
nicked
or
warped
gasket
surface.
Repair any damage,
Or
replace the
pan if repairs cannot be made.
OIL PUMP
v-a
ENGINES
Wash all parts in
a solvent
and
dry
them
thoroughly,
Use a brush to
clean
the inside
of
the pump housing
and the pressure
relief valve chamber.
Be
sure
all
dirt
and chips are
re-
moved.
Check
tbe inside
of
the pump
housing
and
the
outer race and rotor
fo
r
dam,
a ge
or
excessive
wear.
C
heck the mating
surface
of the
pump cover for wear. If the cover
mating
surface
is worn, scored,
or
grooved,
replace the cover.
Measure the outer race to housing
clearance
(Fig. 26).
With
the rotor assembly installed
in
the
housing, place
a
straight
edge
over the
rotor assembly
and the hous-
ing.
Measure
the clearance
between
the
straight edge and
the
rotor
and
outer race
(Fig. 27).
T he outcr rate,
sbaft
and rotor are
repJateable only as an
assembly.
Check
the
drive shaft
to housing
bearing clearance
by measuring the
0.0.
of
the
shaft and the
I.D.
of
the
housing bearing.
I
nspect
the
relief valve
spring for
a collapsed or worn condition.
Check
the relief
valve spring ten-
sion. If the spring
tension
is
not
with-
in specifications and/or
the
spring is
defective, replace
the spring.
Check
the relief valve piston
for
scores and free
operation in the bore.
OIL
PUM P-2
2
3
SIX ENGI NE
Wash
all
parts in a
solvent and
dry
them
thoroughly.
Use
a brush
to
clean the inside
of
the pump
housing
and the pressure
relief
valve chamber.
Be
sure all
dirt
and chips
are removed.
Remove old
gasket
material
from the
pump
body and cover,
Inspect
the
pump
body and
the
gear
teeth fo
r
damage
or
wear.
Check
the
gear
end
clearance with
a
dial
indicator
or
Plastigage.
The Plasti-
gage
method
is as follows:
Position
the
gasket on the housing,
then
place Plastigage
on the
gears and
install
the cover.
Remove
the cover
and check the Plastigage reading.
Check
the gears fo
r
freedom of
rotation.
Check the compression of
the
oil
pressure relief
valve spring
and check
the clearance
of
the
relief
valve in
the valve chamber.
OIL COOLER-SD V-B
ENGIN
ES
1-19
Clean
the
oil cooler
as
soon
as
pos-
sible
after
removing
it from the
en-
gine,
or
soak
it in
cleaning solvent
until ready to
clean. This
will prevent
hardening
and
drying of accumulated
foreign
material.
Immerse the
oil cooler
in a
com-
mercial
cleaning solvent and clean
the outside
of
the plates
with a stiff
bristle
brush.
Pressure circulate
a standard com-
mercial
solvent (at a
pressure
of
ap-
proximately 20 psi) through the
oil
passages of the
cooler
in the reverse
direction
of
normal
flow.
Normal
flow
is from
the bottom hole (inlet)
to the top hole
(outlet)
.
If
a
circu-
lating pump is
not available, soak
the
cooler in solvent for a few
minutes
and
force the
solvent
through the
oil
passages with
a
plunge
r
or
piston-
type hand pump. If the
oil
passages
are severely
clogged, use
an oakite
or
alkaline solution.
After cleaning,
pressure flush the
cooler
with clean
hot water.
Thoroughly
clean
the passages in
the
cover
and
clean
the
relief valve
assembly.
Remove
all
old
gasket
sealer
from the
cover,
oil
cooler,
and
block.
FIG.
26-0uter Ra
ce
to Housing
Clea
rance-
V
-
8
Engines
FIG.
27
-Rotor End
Play-V-
8
Engines
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