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28
PLYMOUTH SERVICE MANUAL
5. ENGINE NOISES.
1936-42'-Cont'd.
( 3)
If the clutch housing pan is dam-
aged or bent, the flywheel may rub against
. the pan, c;ausing a scraping sound. The sound
may be intermittent when driving over
rough roads.
6. LOW OR NO OIL PRESSURE;.
1936-42
( 1 )
Inspect for leakage at oil tubes and
connections at filter, gauge and cylinder
block.
If
external leak is not apparent, re-
move oil pan and tighten oil pump suction
and outlet pipe connections.
( 2 )
Remove, clean and inspect the
relief valve.
( 3)
Inspect engine bearings and re-
place if clearance is excessive. (Refer to
"Data and Specifications" chart on page 10 1
for clearances.)
( 4)
If causes listed in steps ( 1), ( 2)
and ( 3 ) are not evident, repair or replace oil
pump.
7. EXCESSIVE OIL CONSUMPTION.
1936-42
( 1 )
Inspect oil level. Do not add oil
above the recommended oil level. See para-
graph 3 on page 14.
( 2)
Inspect all external oil tubes for
leakage. Inspect for leakage at oil pan and
timing gear case gaskets and at rear main
bearing.
( 3)
Inspect bearing clearances and
crankshaft journals.
( 4)
Inspect cylinder walls. Recondi-
tion if damaged and install new pistons and
rings.
8. EXCESSIVE FUEL CONSUMPTION.
1936-42
( 1)
Clean and inspect choke valve to
be sure it is fully open when the choke but-
ton is pushed "in."
(2)
Adjust carbui·etor.
'
( 3)
Inspector cai·buretor floatt level
(adjustto 5/64 inch; 17/32 inch on Chand-
ler Groves carburetor only).
( 4) · Remove distributor vacuum ad-
vance unit and inspect diaphragm for dam-
age. Blow into vacuum tube end of unit; if
air passes through unit, replace the unit.
( 5 )
Inspect and reset ignition timing if
necessary.
( 6)
Inspect for dragging brakes or mis-
alignment of wheels.
( 7)
Inspect transmission and rear axle
for use of proper grade of lubricant. See
paragraphs 6 and 7 on pages 14 and 15.
( 8)
Inflate tires to recommended pres-
sures.
9. ENGINE OVERHEATS.
1936-42
( 1 )
Inspect hose connections and drain
cocks for leakage.
( 2)
If coolant overflows from radiator,
causing overheating, test the radiator for
restricted flow or replace cylinder head
gasket.
( 3)
Inspect fan belt tension and adjust
if necessary.
( 4)
Clean all foreign matter from be-
tween the radiator fins .or from the inside of
the cells. Blow out with compressed air or
flush
from the engine side
with water from a
hose.
( 5)
Inspect the thermostat for proper
operation.
( 6)
Inspect the hose for restrictions
and watch for collapsing of the lower hose
when the engine is speeded up. Tighten hose
connections.
( 7)
Inspect the water pump to make
sure the impeller turns with the shaft.
( 8)
Reverse flush the cylinder block
and radiator core.
.I
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