2002 JEEP LIBERTY Workshop Manual

Page 1305 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual CONDITION POSSIBLE CAUSES CORRECTION
MAIN BEARING NOISE 1. Insufficient oil supply. 1. Check engine oil level.
2. Low oil pressure. 2. Check engine oil level. Inspect oil
pump relief valve and spring.

Page 1306 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual CONDITION POSSIBLE CAUSES CORRECTION
OIL CONSUMPTION OR SPARK
PLUGS FOULED1. PCV system malfunction. 1. Check system and repair as
necessary. (Refer to 25 -
EMISSIONS CONTROL/
EVAPORATIVE EMISSIONS/PC

Page 1307 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (1) Inspect air cleaner, induction system and
intake manifold to insure system is dry and clear of
foreign material.
(2) Remove negative battery cable.
(3) Place a shop towel around the spark plugs
wh

Page 1308 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual MopartGasket Sealant in an aerosol can should be
applied using a thin, even coat sprayed completely
over both surfaces to be joined, and both sides of a
gasket. Then proceed with assembly. Material in

Page 1309 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual NOTE: Plastigage is available in a variety of clear-
ance ranges. Use the most appropriate range for
the specifications you are checking.
(4) Install the proper crankshaft bearings to
achieve the spec

Page 1310 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (8) Install the starter.
(9) Connect the crankshaft position sensor.
(10) Install the engine block heater power cable, if
equipped.
CAUTION: The structural cover requires a specific
torque sequence. F

Page 1311 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual DESCRIPTION SPECIFICATION
Piston Ring Groove
Depth No. 34.097±4.236 mm
(0.161±0.166 in.)
Piston Pins
Clearance in Piston 0.005±0.018 mm
(0.0002±0.0008 in.)
Clearance in Connecting
RodInterference

Page 1312 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual DESCRIPTION SPECIFICATION
Exhaust 6.60 mm
(0.259 t>
Intake Valve Timing*
Closes (ABDC) 51É
Opens (BTDC) 1É
Duration 232É
Exhaust Valve Timing*
Closes (ATDC) 7É
Opens (BBDC) 47É
Duration 234É
Val