Jeep UNIVERSAL CJ-2A - Page 14

'Jeep' UNIVERSAL and 'Jeep' DISPATCHER
B
engine lubrication is shown in Fig. 17. Maximum
oil pressure in the system is ·limited by an oil
pressure relief valve located on the oil pump. See
Par. D-63 and E-64.
B-6. Initial Lubrication
:VVhen a new vehicle is placed in service or an engine
1s overhauled, the engine oil should be changed
aft~r the first 500 miles [800 km.] of operation and
agam after an additional 1500 miles [2.400 km.].
The oil filter should be cleaned and the element
replac~d after the first 2000 miles [3.200 km.] of
operat10n. For all other vehicle lubrication follow
the instructions given in the remainder of this sec-
tion of this manual.
During the run-in period, until the piston rings
?ave become seated, oil consumption in the engine
1s usually greater than that considered normal for
proper lubrication. As much as 4000 miles [6.400
km.]_of operation may be required to properly seat
the nngs and decrease oil consumption to normal.
Do not overfill the crankcase as excess oil will be
rapidly dissipated. Under no conditions should an
oil heavier than SAE 20W be used during the
summer or SAE 1 OW during the winter for the first
500 miles [800 km.] when an engine is new or has
been rebuilt.
B-7. Engine Crankcase
The oil in the crankcase should be changed after
each 2000 miles [3.200 km.] of normal service, or
more often under any of the following exceptions.
Change engine oil more frequently depending on
type. a_nd qualit:'( of oil used, severity of operating
cond1t1ons, and 1f vehicle is driven short distances
in cold weather or allowed to idle excessively.
Always drain while crankcase oil is hot as sus-
pended dirt and contaminents will more likely be
FIG. 17-ENGINE LUBRICATION
held in suspension and, therefore, drain out more
completely.
a. Position drain receptacle under plug.
b. Remove drain plug using correct size wrench.
Be careful of hot oil.
c. Clean drain plug. Inspect and replace gasket if
deteriorated.
d. When oil has drained, replace and tighten
drain plug.
e. Check for presence of excess water in the oil
that might indicate an internal leak from the
cooling system.
B-8. Lubrication Fittings
Each 1000 miles [1.600 km.] clean each lubrication
fitting indicated by No. 1 on Lubrication Charts.
Use a pressure gun to lubricate. Be sure that grease
channels are open to provide complete lubrication
of bearing surfaces. In some cases it may be neces-
sary to replace the lubrication fitting. In extreme
cases it may be necessary to disassemble and clear
plugged channels. The following points have lubri-
cation fittings.
a. Remote control gearshift base (Models D]-3A
and some models Cj-2A only).
b. Tie rod: 4 fittings
c. Drag link (steering connecting rod): 2 fittings
d. Clutch pedal
e. Brake pedal
f. Steering bell crank
g. King pin: 4 fittings (Model DJ-3A only)
h. Transfer case shift lever shaft (All models ex-
cept Dj-3A)
i. Spring shackles and pivot bolts: See Par. B-9
j. Propeller shaft universal joints: See Par. B-10
k. Rear wheel bearings: See Par. B-14
B-9. Spring Shackles and Spring Pivot Bolts
• Models CJ-3B, C]-5, C]-6, D]-3A
All spring shackles and spring pivot bolts are shown
as item 2 on the Lubrication Charts for these
models, but some of these points will not have
lubrication fittings. Where there is no lubrication
fitting at one of these points, indicating a silent
bloc bushing has been installed, that point is not
to be lubricated. Where there are lubrication
fittings at the spring shackles or pivot bolts,
lubricate at each fitting with a pressure gun every
1000 miles [1.600 km.].
B-10. Propeller Shaft Universal Joints
The propeller shaft universal joints and slip joints
are equipped with lubrication fittings. These should
be lubricated with a good quality universal joint
or chassis grease each 1000 miles [1.600 km.] using
a hand compressor.
B.;11. Front Axle Shaft Universal Joints
and King Pin Bearings
All 4-wheel drive front axle shaft universal joints
and the front axle king pin bearings are enclosed
in the steering knuckle housings. Check the lubri-
cant level in the housings each 1000 miles [1.600
km.] to maintain it at fill plug level. Once each year
or at each 12,000 miles [19.200 km.] remove the
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