Chassis Lubrication; Materials Required For Chassis And Body Lubrication - Jeep cherokee 1989 Owner's Manual

19 Attach the new filter to the engine, following the tightening direc-
tions printed on the filter canister or packing box. Most filter manufac-
turers recommend against using a filter wrench due t o the possibility
of overtightening and damage to the seal.
2 0 Remove all tools, rags, etc. from under the vehicle, being careful
not to spill the oil in the drain pan, then lower the vehicle.
21 Move to the engine compartment and locate the oil filler cap.
2 2 If an oil can spout is used, push the spout into the top of the oil
can and pour the fresh oil through the filler opening. A funnel may also
be used.
23 On four-cylinder and V6 engines, pour four quarts of fresh oil into
the engine. On inline six-cylinder engines, pour in five quarts. Wait a
few minutes to allow the oil to drain into the pan, then check the level
on the oil dipstick (see Section 4 if necessary). If the oil level is above
the ADD mark, start the engine and allow the new oil to circulate.
2 4 Run the engine for only about a minute checking the pressure gauge
or indicator light to make sure normal oil pressure is achieved. Shut
off the engine, Immediately look under the vehicle and check for leaks
at the oil pan drain plug and around the oil filter. If either is leaking,
tighten with a bit more force.
25 With the new oil circulated and the filter now completely full,
recheck the level on the dipstick and add more oil as necessary.
26 During the first few trips after an oil change, make it a point to
check frequently for leaks and proper oil level.
27 The old oil drained from the engine cannot be reused in its present
state and should be disposed of. Oil reclamation centers, auto repair
shops and gas stations will normally accept the oil, which can be refined
and used again. After the oil has cooled it can be drained into a suitable
container (capped plastic jugs, topped bottles, milk cartons, etc.) for
transport to one of these disposal sites.

13 Chassis lubrication

Refer to illustrations 13.1, 13.9, 13.10, 13. 1 1 and 13. 14
1 Refer to Recommended lubricants and fluids at the front of this
Chapter to obtain the necessary grease, etc. You will also need a grease
gun (see illustration). Occasionally plugs will be installed rather than
grease fittings. If so, grease fittings will have to be purchased and in-
stalled.
2 Look under the vehicle for grease fittings or plugs on the steering,
suspension, and driveline components. They are normally found on
the balljoints, tie-rod ends and universal joints. If there are plugs, remove
them and buy grease fittings, which will thread into the component.
A dealer or auto parts store will be able t o supply the correct fittings.
Straight, as well as angled, fittings are available.
3 For easier access under the vehicle, raise it with a jack and place
jackstands under the frame. Make sure it is safely supported by the
stands. If the wheels are to be removed at this interval for tire rotation
or brake inspection, loosen the lug nuts slightly while the vehicle is
still on the ground.
4 Before beginning, force a little grease out of the nozzle to remove
any dirt from the end of the gun. Wipe the nozzle clean with a rag.
5 With the grease gun and plenty of clean rags, crawl under the ve-
hicle and begin lubricating the components.
6 Wipe the balljoint grease fitting nipple clean and push the nozzle
firmly over it. Squeeze the trigger on the grease gun to force grease
into the component. The balljoints should be lubricated until the rub-
ber seal is firm to the touch. Do not pump too much grease into the
fittings as it could rupture the seal. For all other suspension and steer-
ing components, continue pumping grease into the fitting until it oozes
out of the joint between the t w o components. If it escapes around the
grease gun nozzle, the nipple is clogged or the nozzle is not completely
seated on the fitting. Resecure the gun nozzle to the fitting and try
again. If necessary, replace the fitting with a new one.
7 Wipe the excess grease from the components and the grease fitting.
Repeat the procedure for the remaining fittings.
8
On models where the manual transmission shift linkage is acces-
sible, lubricate the shift linkage with a little multi-purpose grease.
9
On 4WD models, lubricate the front driveshaft Constant Velocity
adaptor on the grease gun (see illustration). Lubricate the transfer case
shift mechanism contact surfaces with clean engine oil.
1 0 If equipped, lubricate the driveshaft slip joints by pumping grease
The Motor Manual Guy
Chapter 1 Tune-up and routine maintenance

13.1 Materials required for chassis and body lubrication

Light engine oil in a can like this can be
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used for door and hood hinges
2 Graphite spray
Used to lubricate lock cylinders
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3
Grease Grease, in a variety of types and weights, is
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available for use in a grease gun. Check the
Specifications for your requirements
gun
4 Grease A common grease gun, shown here with
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a detachable hose and nozzle, is needed for chassis
lubrication. After use, clean i t thoroughly!
13.9 I n addition to the conventional universal joints at each end
of the driveshaft, 4WD models have a Constant Velocity (CV)
joint which requires a needle-like adaptor on the grease gun
the arrows show the locations of the CV joint grease fittings
1-17
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