Jeep Liberty KJ. Manual — part 915
SEAL(S)-CAMSHAFT OIL
REMOVAL
1. Disconnect negative battery cable.
2. Remove cooling fan and fan drive viscous clutch
assembly (Refer to 7 - COOLING/ENGINE/FAN
DRIVE VISCOUS CLUTCH - REMOVAL).
3. Remove accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL).
4. Remove fan support (Refer to 7 - COOLING/EN-
GINE/RADIATOR FAN - REMOVAL).
5. Remove vibration damper.
6. Remove outer timing belt cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL).
WARNING: Before removing the timing belt the
engine must rotated to 90° after TDC and special
tool VM.1080 installed. Failure to do so could
result in valve and/or piston damage during reas-
sembly. (Refer to 9 - ENGINE/VALVE TIMING -
STANDARD PROCEDURE).
7. Remove timing belt (Refer to 9 - ENGINE/VALVE
TIMING/TIMING BELT/CHAIN AND SPROCKETS - REMOVAL).
8. Using VM.1055, remove both camshaft gears (2) and (4).
9. Remove both camshaft oil seals using special tool VM.1058.
INSTALLATION
CAUTION: Special tool VM.1080 must be removed from the flex plate after the repair is complete.
1. Install new camshaft oil seal using VM.1057.
2. Install camshaft sprockets and tighten retaining bolts finger tight.
3. Install timing belt (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT/CHAIN AND SPROCKETS - INSTALLA-
TION).
4. Torque camshaft sprockets to 108 N·m using VM.1085 to hold sprockets.
5. Install outer timing belt cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) - INSTAL-
LATION).
6. Install vibration damper.
7. Remove special tool V.M1080 from the engine block access hole.
8. Install cooling fan support (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - INSTALLATION).
9. Install accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION).
10. Install cooling fan and fan drive viscous clutch assembly (Refer to 7 - COOLING/ENGINE/FAN DRIVE VIS-
COUS CLUTCH - INSTALLATION).
11. Connect negative battery cable.
9 - 1618
ENGINE - 2.8L DIESEL
KJ
CAMSHAFT(S)
DESCRIPTION
The camshafts (1) and (2) are made of gray cast iron
with eight machined lobes and four bearing journals.
Each camshaft has an alignment hole (2) and (3)
toward the front of the camshaft that is used during
base engine timing procedures (Refer to 9 - ENGINE/
VALVE TIMING - STANDARD PROCEDURE).
OPERATION
When the camshaft rotates the lobes actuate the hydraulic lifters and rocker arms, forcing downward on the rocker
arms which opens the valves.
REMOVAL - CAMSHAFTS
1. Disconnect negative battery cable.
2. Remove engine cover and bracket (Refer to 9 -
ENGINE - REMOVAL).
3. Drain cooling system (Refer to 7 - COOLING/EN-
GINE/COOLANT - STANDARD PROCEDURE).
4. Remove cooling fan and fan drive viscous clutch
assembly (Refer to 7 - COOLING/ENGINE/FAN
DRIVE VISCOUS CLUTCH - REMOVAL).
5. Remove accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL).
6. Remove cooling fan support (Refer to 7 - COOL-
ING/ENGINE/RADIATOR FAN - REMOVAL).
7. Rotate the engine to 90 degrees ATDC and install
special tool VM.1089. (Refer to 9 - ENGINE/VALVE
TIMING - STANDARD PROCEDURE).
8. Remove vibration damper (Refer to 9 - ENGINE/
ENGINE
BLOCK/VIBRATION
DAMPER
-
REMOVAL).
9. Remove generator (Refer to 8 - ELECTRICAL/
CHARGING/GENERATOR - REMOVAL).
CAUTION: Before removing the cylinder head cover/intake manifold (5) or timing belt the engine must
rotated to the 90° ATDC, or the 3 O’clock position and special tool VM.1089 installed in the 90 degree ATDC
alignment hole. Failure to do so could result in valve and/or piston damage during reassembly. (Refer to 9
- ENGINE/VALVE TIMING - STANDARD PROCEDURE)
10. Remove timing belt outer cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) -
REMOVAL).
11. Remove timing belt (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT/CHAIN AND SPROCKETS -
REMOVAL).
KJ
ENGINE - 2.8L DIESEL
9 - 1619
12. Remove timing belt inner cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) -
REMOVAL).
13. Remove cylinder head cover/intake manifold (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COV-
ER(S) - REMOVAL).
14. With cylinder head cover/intake manifold on work bench, remove plugs at rear of cylinder head cover/intake
manifold.
15. Remove camshaft oil seals.
16. Remove snap ring (2) and thrust washer (4) from camshaft.
17. Slide camshaft through access hole at rear of cylinder head cover/intake manifold (5).
INSTALLATION - CAMSHAFTS
1. Lubricate camshafts with Mopar
T
Engine Oil Supplement, or equivalent.
2. Carefully install camshafts into access holes in rear of cylinder head cover/intake manifold.
3. Install thrust washer, snap ring, and camshaft oil seal.
CHECKING CAMSHAFT ENDPLAY
1. After camshafts are properly installed in cylinder head cover check end play of camshafts with a dial indicator.
The end play should be between 0.10 mm - 0.55 mm.
NOTE: If the camshaft endplay is not within specification, measure thickness of the camshaft spacer. Cam-
shaft spacer thickness should be 2.8 ± .02mm.
4. Measure the camshaft end play with a dial indicator. The end play should be between 0.10 mm-0.55 mm.
5. Install access hole plugs and gaskets at rear of cylinder head cover/intake manifold. Torque plugs to 80N·m.(59
ft. lbs.).
6. Install cylinder head cover/intake manifold on engine block (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER
HEAD COVER(S) - INSTALLATION).
7. Align the camshafts and install camshaft alignment pins, VM1052 and VM1053 into the camshaft cover.
8. Install timing belt inner cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) - INSTAL-
LATION).
NOTE: Crankshaft must be rotated to the 90 degree ATDC, or the 3 O’clock position (Refer to 9 - ENGINE/
VALVE TIMING - STANDARD PROCEDURE).
9. Install timing belt (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT/CHAIN AND SPROCKETS - INSTALLA-
TION).
10. Install timing belt outer cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) -
INSTALLATION).
11. Install generator (Refer to 8 - ELECTRICAL/CHARGING/GENERATOR - INSTALLATION).
12. Install vibration damper.
13. Install cooling fan support (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - INSTALLATION).
14. Install accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION).
15. Install cooling fan and fan drive viscous clutch assembly (Refer to 7 - COOLING/ENGINE/FAN DRIVE VIS-
COUS CLUTCH - INSTALLATION).
16. Refill cooling system (Refer to 7 - COOLING/ENGINE/COOLANT - STANDARD PROCEDURE).
17. Connect negative battery cable.
9 - 1620
ENGINE - 2.8L DIESEL
KJ
COVER-CYLINDER HEAD
DESCRIPTION
The cylinder head cover and the intake manifold on
this engine are made of cast aluminum. The cylinder
head cover also incorporates a oil drain back hole for
the crankcase ventilation (CCV) system..
REMOVAL
CAUTION: Before removing the cylinder head cov-
er/intake manifold (2) the witness mark on the
crankshaft hub must rotated to the 3 O’clock posi-
tion or, 90° after TDC to assure proper alignment
of the camshafts and the crankshaft. Failure to do
so could result in valve and/or piston damage dur-
ing reassembly.
1. Disconnect negative battery cable.
2. Remove engine cover and bracket (Refer to 9 -
ENGINE - REMOVAL).
3. Remove the air cleaner housing (Refer to 9 -
ENGINE/AIR
INTAKE
SYSTEM/AIR
CLEANER
HOUSING - REMOVAL).
4. Drain cooling system (Refer to 7 - COOLING/EN-
GINE/COOLANT - STANDARD PROCEDURE).
5. Evacuate the air conditioning.
6. Disconnect the coolant recovery hose at the radia-
tor.
7. Remove the charge air inlet hose at the coolant
module.
8. Remove the upper radiator hose at the radiator.
9. Separate the A/C hoses from the cooling fan shroud.
10. Remove cooling fan and fan drive viscous drive assembly, along with the fan shroud (Refer to 7 - COOLING/
ENGINE/FAN DRIVE VISCOUS CLUTCH - REMOVAL).
11. Remove accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL).
12. Remove cooling fan support (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - REMOVAL).
KJ
ENGINE - 2.8L DIESEL
9 - 1621
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