J.
K.
L.
JB SERIES, PRIOR TO SPEC.
S
AND
ALL MODELS PRIOR TO SPEC
T
NOTE FLAPPER VALVE
IS
NOT
USED
ON JC SERIES. JC SERIES USE PCV
VALVE BEGINNING SPEC
T.
BREATHER TUBE
UBE BAFFLE
CRANKCASE BREATHER
Remove breather cap. Remove valve from
cap. Wash valve in solvent. Dry and install
with perforated disc toward engine.
If
faulty, install new valve.
FIGURE
BREATHER HOSE
BREATHER
HOSE
INSULATOR
CAP AND
VALVE.
1
"0"
RING
,
/HOSE CLAMP
CLAMP
1
SCREEN
BAFFLE1
BR
1
ISULATOR
CRANKCASE
BREATHER
(BEGIN SPECS)
A178
Remove hose clamp.breather hose.breather cap clamp
and insulator halves to release breather cap
and
valve
assembly. Wash cap
and
valveassembly and the baffle
in suitable solvent and reinstall.
8.
BREATHER VALVES
specified in
Tune-up Specij7cations.
Replace con-
denser if spark is weak or if points burn readily.
BATTERY.
Check charge condition. Check elec-
trolyte level. Add distilled water to keep elec-
trolyte at its proper level.
In
freezing weather, run
engine immediately after adding water. Keep
battery connections tight and clean.
FUEL SEDIMENT.
Empty carburetor and fuel
filter (strainer) bowls of any accumulated sedi-
ment. Clean filter screen thoroughly. Reassemble
and check for leaks.
OIL FILTER.
The oil filter is a full-flow type (all oil
is filtered enroute to bearings). A by-pass permits
unfiltered oil to reach bearings if filter becomes
clogged. Place adrip pan below filter. Unscrew oil
filter counterclockwise, using both hands or a
filter wrench (box-end or strap-type). Clean filter
mounting area. Lubricate filtergasket with engine
oil. Turn new filter on hand tight, then
1/2
turn
further, using a filter wrench.
Do
not overtighten.
Change
oil
filter more often if oil becomes
too
dirty to read dipstick markings. This can happen
M.
N.
under extreme dust conditions or in -freezing
temperatures. When adding new oil to crankcase,
allow an additional
1/2
quart for oil filter.
MAJOR
ENGINE SERVICE.
Remove carbon and
lead deposits from combustion chamber, valves,
etc. as often as experience dictates, depending on
operating conditions. Adjust valve clearances
when cold. Flush rocker box cover oil line in
solvent and clean small holes using fine wire (do
,
not enlarge holes). Clean entire engine to ensure
efficient cooling and operation. Perform other
services as inspection or operation shows
necessary.
EXHAUST
SYSTEM.
Make regular inspections of
the exhaust system throughout the entire life of
the engine. Locate leaks in muffler and piping
while the engine is operating.
Leaky exhaust systems emit noxious
carbon monoxide fumes which are a
potential health hazard in enclosed areas.
15
Redistribution or publication of this document,
by any means, is strictly prohibited.
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