Downloaded from www.Manualslib.com manuals search engine CONNECTING ROD BEARINGSÐFITTING
Fit all rods on a bank until completed. DO NOT
alternate from one bank to another, because connect-
ing rods and pistons are not interchangeable from
one bank to another.
The bearing caps are not interchangeable and
should be marked at removal to ensure correct
assembly.
Each bearing cap has a small V-groove across the
parting face. When installing the lower bearing shell,
make certain that the V-groove in the shell is in line
with the V-groove in the cap. This provides lubrica-
tion of the cylinder wall in the opposite bank.The bearing shells must be installed so that the
tangs are in the machined grooves in the rods and
caps.
Limits of taper or out-of-round on any crankshaft
journals should be held to 0.025 mm (0.001 inch).
Bearings are available in 0.025 mm (0.001 inch),
0.051 mm (0.002 inch), 0.076 mm (0.003 inch), 0.254
mm (0.010 inch) and 0.305 mm (0.012 inch) under-
size.Install the bearings in pairs. DO NOT use a
new bearing half with an old bearing half. DO
NOT file the rods or bearing caps.
CRANKSHAFT MAIN BEARINGSÐFITTING
Bearing caps are not interchangeable and should
be marked at removal to ensure correct assembly.
Upper and lower bearing halves are NOT inter-
changeable. Lower main bearing halves of No.2 and 4
are interchangeable.
Upper and lower No.3 bearing halves are flanged
to carry the crankshaft thrust loads. They are NOT
interchangeable with any other bearing halves in the
engine (Fig. 30). Bearing shells are available in stan-
dard and the following undersizes: 0.25 mm (0.001
inch), 0.051 mm (0.002 inch), 0.076 mm (0.003 inch),
0.254 mm (0.010 inch) and 0.305 mm (0.012 inch).
Never install an undersize bearing that will reduce
clearance below specifications.
REMOVAL AND INSTALLATION
ENGINE MOUNTSÐFRONT
REMOVAL
On 4WD vehicles the engine front support brackets
attach directly to engine block and the axle housing.
The brackets provide a solid interconnection for these
units (Fig. 31) (Fig. 32). Engine must be supported
during any service procedures involving the front
support assemblies.
Fig. 28 Compression Ring Chamfer Location
(Typical)
1 ± CHAMFER
2 ± TOP COMPRESSION RING
3 ± SECOND COMPRESSION RING
4 ± PISTON
5 ± CHAMFER
Fig. 29 Proper Ring Installation
1 ± OIL RING SPACER GAP
2 ± SECOND COMPRESSION RING GAP OIL RING RAIL GAP
(TOP)
3 ± OIL RING RAIL GAP (BOTTOM)
4 ± TOP COMPRESSION RING GAP
Fig. 30 Main Bearing Identification
9 - 100 5.2L ENGINEDN
SERVICE PROCEDURES (Continued)
Downloaded from www.Manualslib.com manuals search engine (1) Disconnect the negative cable from the battery.
(2) Raise vehicle on hoist.
(3) Install engine lifting (support) fixture.
(4) Remove front axle assembly. (Refer to Group 3,
Differential and Driveline in this publication.)
(5)Left mount insulator only.Remove starter
wires and starter motor assembly.
(6) Remove insulator to frame through bolt (Fig.
33).
(7) Raise engine slightly.
(8) Remove upper insulator to support bracket
stud nut and insulator to support through bolt.
(9) Remove engine mount insulator (Fig. 31) (Fig.
32).
(10) If engine support bracket is to be removed/re-
placed, remove support bracket to transmission bell
housing bolt(s) and three (3) support bracket to
engine block bolts. Remove support bracket (Fig. 31)
(Fig. 32).
INSTALLATIONÐ4WD
(1) If engine support brackets were removed,
install them and their fasteners (Fig. 31) (Fig. 32).
Tighten support bracket to block bolts to 41 N´m (30
ft. lbs.). Tighten support bracket to transmission bell-
housing bolt(s) to 88 N´m (65 ft. lbs.).
(2) Install Engine mount insulator and tighten
insulator to support bracket nut to 41 N´m (30 ft.
lbs.). Tighten insulator to support bracket through
bolt nut to 102 N´m (75 ft. lbs.).
(3) Lower engine and install insulator to frame
through bolt and nut (Fig. 33). Tighten nut to 95 N´m
(70 ft. lbs.).
(4) Install starter motor and mounting bolts.
Tighten bolts to 68 N´m (50 ft. lbs.).
(5) Connect starter wires.
(6) Remove engine lifting (support) fixture.
(7) Install front axle assembly. (Refer to Group 3,
Differential and Driveline).
(8) Lower the vehicle.
(9) Connect the negative cable to the battery.
Fig. 31 Right Engine Mount Insulator and Support
Bracket
1 ± ENGINE SUPPORT BRACKET
2 ± INSULATOR
3 ± FRONT AXLE
Fig. 32 Left Engine Mount Insulator and Support
Bracket
1 ± ENGINE SUPPORT BRACKET
2 ± INSULATOR
3 ± FRONT AXLE
DN5.2L ENGINE 9 - 101
REMOVAL AND INSTALLATION (Continued)
Downloaded from www.Manualslib.com manuals search engine After the distributor has been installed, its rota-
tional position must be set using theSET SYNC
mode of the DRB scan tool. Refer to Checking Dis-
tributor Position following the Distributor Installa-
tion section in Group 8D, Ignition system.
Do not attempt to adjust ignition timing by
rotating the distributor. It has no effect on igni-
tion timing. Adjusting distributor position will
effect fuel synchronization only.
OIL PAN
REMOVAL
2WD
(1) Disconnect the negative cable from the battery.
(2) Remove air cleaner assembly.
(3) Remove engine oil dipstick.
(4) Disconnect distributor cap and position away
from cowl.
(5) Remove the fan shroud. Refer to COOLING
SYSTEM.
(6) Disconnect throttle valve cable from throttle
body and mounting bracket (Fig. 62A).
(7) Raise vehicle.
(8) Drain engine oil.
(9) Remove exhaust pipe from exhaust manifolds.
(10) Remove engine mount insulator through bolts.
(11) Raise engine by way of oil pan using a block
of wood between the jack and oil pan.
(12) When engine is high enough, place mount
through bolts in the engine mount attaching points
on the frame brackets.
(13) Lower engine so bottom of engine mounts rest
on the replacement bolts placed in the engine mount
frame brackets.
(14) Remove transmission to engine braces.
(15) Remove starter. Refer to STARTING SYS-
TEMS.(16) Remove transmission torque converter inspec-
tion cover.
(17) Disconnect rear support cushion from cross-
member.
(18) Raise rear of transmission away from cross-
member.
(19) Remove oil pan and one-piece gasket.
4WD
(1) Disconnect the negative cable from the battery.
(2) Remove engine oil dipstick.
(3) Raise vehicle.
(4) Drain engine oil.
(5) Remove front driving axle. Refer to DIFFER-
ENTIAL and DRIVELINE.
(6) Remove both engine mount support brackets.
(7) Remove transmission torque converter inspec-
tion cover.
(8) Remove oil pan and one-piece gasket.
INSTALLATION
2WD
(1) Fabricate 4 alignment dowels from 5/16x11/2
inch bolts. Cut the head off the bolts and cut a slot
into the top of the dowel. This will allow easier
installation and removal with a screwdriver (Fig. 63).
Fig. 62 Position of Oil Pump Shaft Slot
1 ± DISTRIBUTOR DRIVE
Fig. 62A Throttle Valve Cable Removal/Installation
1 ± TRANSMISSION THROTTLE VALVE CABLE BRACKET
2 ± AIR INLET DUCT
3 ± TRANSMISSION THROTTLE VALVE CABLE
DN5.2L ENGINE 9 - 115
REMOVAL AND INSTALLATION (Continued)
2000 DN Service Manual
Publication No. 81-370-0016
TSB 26-12-99 December, 1999
Downloaded from www.Manualslib.com manuals search engine (2)Install the dowels in the cylinder block (Fig. 64).
(3) Apply small amount of Mopar Silicone Rubber
Adhesive Sealant, or equivalent in the corner of the
cap and the cylinder block.
(4) Slide the one-piece gasket over the dowels and
onto the block.
(5) Position the oil pan over the dowels and onto
the gasket.
(6) Install the oil pan bolts. Tighten the bolts to 24
N´m (215 in. lbs.) torque.
(7) Remove the dowels. Install the remaining oil
pan bolts. Tighten these bolts to 24 N´m (215 in. lbs.)
torque.(8) Install the drain plug. Tighten drain plug to 34
N´m (25 ft. lbs.) torque.
(9) Lower transmission onto crossmember.
(10) Install rear support cushion mounting bolts.
Tighten bolts to 28 N´m (250 in. lbs.).
(11) Raise engine by way of oil pan with a wood
block placed between jack and oil pan.
(12) Remove through bolts from frame brackets
and lower engine. Install mount insulator through
bolts and tighten to 95 N´m (70 ft. lbs.).
(13) Install starter.
(14) Install transmission torque converter inspec-
tion cover.
(15) Install engine to transmission braces.
(16) Install exhaust pipe.
(17) Lower vehicle.
(18) Position throttle valve cable into bracket, then
attach to throttle body (Fig. 62A).
(19) Connect the distributor cap.
(20) Install dipstick.
(21) Install fan shroud.
(22) Install air cleaner assembly.
(23) Connect the negative cable to the battery.
(24) Fill crankcase with oil to proper level.
4WD
(1) Fabricate 4 alignment dowels from 1 1/2 x 5/16
inch bolts. Cut the head off the bolts and cut a slot
into the top of the dowel. This will allow easier
installation and removal with a screwdriver (Fig. 63).
(2) Install the dowels in the cylinder block (Fig.
64).
(3) Apply small amount of Mopar Silicone Rubber
Adhesive Sealant, or equivalent in the corner of the
cap and the cylinder block.
(4) Slide the one-piece gasket over the dowels and
onto the block.
(5) Position the oil pan over the dowels and onto
the gasket.
(6) Install the oil pan bolts. Tighten the bolts to 24
N´m (215 in. lbs.) torque.
(7) Remove the dowels. Install the remaining oil
pan bolts. Tighten these bolts to 24 N´m (215 in. lbs.)
torque.
(8) Install the drain plug. Tighten drain plug to 34
N´m (25 ft. lbs.) torque.
(9) Install transmission inspection cover.
(10) Install engine mount support brackets and
insulators.
(11) Install front drive axle. Refer to DIFFEREN-
TIAL and DRIVELINE.
(12) Lower vehicle.
(13) Connect the distributor cap.
(14) Install dipstick.
(15) Connect the negative cable to the battery.
(16) Fill crankcase with oil to proper level.
Fig. 63 Fabrication of Alignment Dowels
1 ± 1 1/2º x 5/16º BOLT
2 ± DOWEL
3 ± SLOT
Fig. 64 Position of Dowels in Cylinder Block
1 ± DOWEL
2 ± DOWEL
3 ± DOWEL
4 ± DOWEL
9 - 115A 5.2L ENGINEDN
REMOVAL AND INSTALLATION (Continued)
2000 DN Service Manual
Publication No. 81-370-0016
TSB 26-12-99 December, 1999
Downloaded from www.Manualslib.com manuals search engine TORQUE SPECIFICATIONS
TORQUE CHART 5.2L ENGINE
DESCRIPTION N´m Ft. In.
Lbs. Lbs.
Camshaft SprocketÐBolt 68 50 Ð
Camshaft Thrust PlateÐBolts 24 Ð 210
Chain Case CoverÐBolts 41 30 Ð
Connecting Rod CapÐBolts 61 45 Ð
Main Bearing CapÐBolts 115 85 Ð
Crankshaft PulleyÐBolts 24 Ð 210
Cylinder HeadÐBolts
Step 1 68 50 Ð
Step 2 143 105 Ð
Cylinder Head CoverÐBolts 11 Ð 95
Engine Support Bracket to
BlockÐ41 30 Ð
Bolts (4WD)
Exhaust Manifold to Cylinder
HeadÐ34 25 Ð
Bolts/Nuts
FlywheelÐBolts 75 55 Ð
Front InsulatorÐThrough
bolt/nut95 70 Ð
Front Insulator to Support
BracketÐ
Stud Nut (4WD) 41 30 Ð
Through Bolt/Nut 102 75 Ð
Front Insulator to BlockÐ 95 70 Ð
Bolts (2WD)
GeneratorÐMounting Bolts 41 30 Ð
Intake ManifoldÐBolts Refer to Procedure
Oil PanÐBolts 24 Ð 215
Oil PanÐDrain Plug 34 25 Ð
Oil PumpÐMounting Bolts 41 30 Ð
Oil Pump CoverÐBolts 11 Ð 95
Rear Insulator to BracketÐ
Through68 50 Ð
Bolt (2WD)
Rear Insulator to
Crossmember41 30 Ð
Support BracketÐNut (2WD)
Rear Insulator to
CrossmemberÐ68 50 Ð
Nuts (4WD)
DESCRIPTION N´m Ft. In.
Lbs. Lbs.
Rear Insulator to
TransmissionÐ68 50 Ð
Bolts (4WD)
Rear Insulator BracketÐBolts 68 50 Ð
(4WD Automatic)
Rear Support Plate to
Transfer Case41 30 Ð
ÐBolts
Rocker ArmÐBolts 28 21 Ð
Spark Plugs 41 30 Ð
Starter MotorÐMounting
Bolts68 50 Ð
Thermostat HousingÐBolts 25 Ð 225
Throttle BodyÐBolts 23 Ð 200
Torque Converter Drive
PlateÐBolts31 Ð 270
Transfer Case to Insulator
Mounting204 150 Ð
PlateÐNuts
Transmission Support
BracketÐ68 50 Ð
Bolts (2WD)
Vibration DamperÐBolt 183 135 Ð
Water Pump to Timing Chain
Case41 30 Ð
CoverÐBolts
SPECIAL TOOLS
5.2L ENGINE
Oil Pressure Gauge C-3292
9 - 132 5.2L ENGINEDN
SPECIFICATIONS (Continued)
Downloaded from www.Manualslib.com manuals search engine REMOVALÐ4WD
On 4WD vehicles the engine front support brackets
attach directly to engine block and the axle housing.
The brackets provide a solid interconnection for these
units (Fig. 35) (Fig. 36). Engine must be supported
during any service procedures involving the front
support assemblies.
(1) Disconnect the negative cable from the battery.
(2) Raise vehicle on hoist.
(3) Install engine lifting (support) fixture.
(4) Remove front axle. (Refer to Group 3, Differen-
tial and Driveline in this publication.)
(5)Left mount insulator only.Remove starter
wires and starter motor assembly.
(6) Remove insulator to frame through bolt (Fig.
37).
(7) Raise engine slightly.
(8) Remove upper insulator to support bracket
stud nut and insulator to support through bolt.
(9) Remove engine mount insulator (Fig. 35) (Fig.
36).
(10) If engine support bracket is to be removed/re-
placed, remove support bracket to transmission bell
housing bolt(s) and three (3) support bracket to
engine block bolts. Remove support bracket (Fig. 35)
(Fig. 36).
Fig. 32 Engine Right Front Insulator MountÐ2WD
Vehicles
1 ± HEAT SHIELD
2 ± INSULATOR
Fig. 33 Engine Left Front Insulator MountÐ2WD
Vehicles
1 ± HEAT SHIELD
2 ± INSULATOR
Fig. 34 Engine Mount Insulator at Frame
1 ± NUT
2 ± INSULATOR
3 ± FRAME
4 ± THROUGH BOLT
DN5.9L ENGINE 9 - 159
REMOVAL AND INSTALLATION (Continued)
Downloaded from www.Manualslib.com manuals search engine INSTALLATIONÐ4WD
(1) If engine support brackets were removed,
install them and their fasteners (Fig. 35) (Fig. 36).
Tighten support bracket to block bolts to 41 N´m (30
ft. lbs.). Tighten support bracket to transmission bell-
housing bolt(s) to 88 N´m (65 ft. lbs.).
(2) Install Engine mount insulator and tighten
insulator to support bracket nut to 41 N´m (30 ft.
lbs.). Tighten insulator to support bracket through
bolt nut to 102 N´m (75 ft. lbs.).
(3) Lower engine and install insulator to frame
through bolt and nut (Fig. 37). Tighten nut to 95 N´m
(70 ft. lbs.).
(4) Install starter motor and mounting bolts.
Tighten bolts to 68 N´m (50 ft. lbs.).
(5) Connect starter wires.
(6) Remove engine lifting (support) fixture.
(7) Install front axle assembly (Refer to Group 3,
Differential and Driveline).
(8) Lower the vehicle.
(9) Connect the negative cable to the battery.
ENGINE REAR SUPPORT
REMOVALÐ2WD
(1) Disconnect the negative cable from the battery.
(2) Raise the vehicle on a hoist.
(3) Support the transmission with a jack.
(4) Remove engine support bracket and insulator
thru-bolt (Fig. 38).
(5) Raise the transmission and engine slightly.
(6) Remove stud nuts attaching insulator to cross-
member (Fig. 38). Remove insulator.
INSTALLATIONÐ2WD
(1) If the engine support bracket was removed,
position the bracket to the transmission extension
(Fig. 38). Tighten the bolts to 68 N´m (50 ft. lbs.)
torque.
(2) Install the insulator onto crossmember. Tighten
the stud nuts to 41 N´m (30 ft. lbs) torque.
(3) Lower the transmission and engine while align-
ing the engine support bracket to the insulator.
(4) Install thru-bolt in bracket and insulator.
Tighten thru-bolt nut to 68 N´m (50 ft. lbs.) torque.
(5) Remove transmission jack.
(6) Lower the vehicle.
(7) Connect the negative cable to the battery.
Fig. 35 Right Engine Mount Insulator and Support
BracketÐ4WD Vehicles
1 ± ENGINE SUPPORT BRACKET
2 ± INSULATOR
3 ± FRONT AXLE
Fig. 36 Left Engine Mount Insulator and Support
BracketÐ4WD Vehicles
1 ± ENGINE SUPPORT BRACKET
2 ± INSULATOR
3 ± FRONT AXLE
9 - 160 5.9L ENGINEDN
REMOVAL AND INSTALLATION (Continued)
Downloaded from www.Manualslib.com manuals search engine REMOVALÐ4WD
(1) Disconnect the negative cable from the battery.
(2) Raise the vehicle on a hoist.
(3) Support the transmission with a transmission
jack.
(4) Remove stud nuts holding the insulator to the
crossmember (Fig. 39).
(5) Raise rear of transmission SLIGHTLY.
(6) Remove bolts holding the insulator to the insu-
lator bracket (Fig. 39). Remove the insulator.
INSTALLATIONÐ4WD
(1) If the insulator bracket was removed, install
the bracket to the transmission (Fig. 39). Tighten the
bolts to 28 N´m (250 in. lbs.) torque.
(2) Install the bolts holding insulator to insulator
bracket. Tighten the bolts to 28 N´m (250 in. lbs.)
torque.
(3) Lower rear of transmission while aligning the
insulator studs into the mounting support bracket.Install stud nuts and tighten to 28 N´m (250 in. lbs.)
torque.
(4) Remove the transmission jack.
(5) Lower the vehicle.
(6) Connect the negative cable to the battery.
ENGINE ASSEMBLY
REMOVAL
(1) Scribe hood hinge outlines on hood. Remove the
hood.
(2) Remove the battery.
(3) Drain cooling system. Refer to COOLING SYS-
TEM.
(4) Remove the air cleaner assembly and air inlet
hose.
(5) Disconnect the radiator and heater hoses.
(6) Set fan shroud aside.
(7) Remove the vacuum lines.
(8) Remove the distributor cap and wiring.
(9) Disconnect the accelerator linkage.
(10) Remove throttle body.
(11) Perform the Fuel System Pressure release
procedure Refer to FUEL SYSTEM.
(12) Disconnect the fuel lines.
(13) Disconnect the starter wires.
(14) Disconnect the oil pressure wire.
Fig. 37 Engine Mount Insulator at FrameÐ4WD
Vehicles
1 ± NUT
2 ± ENGINE SUPPORT BRACKET
3 ± INSULATOR
4 ± NUT
5 ± THROUGH BOLT
6 ± FRAME
7 ± FRONT AXLE
Fig. 38 Rear InsulatorÐ2WD Vehicles
1 ± ENGINE SUPPORT BRACKET
2 ± THROUGH BOLT
3 ± CROSSMEMBER
4 ± INSULATOR
5 ± TRANSMISSION EXTENSION
DN5.9L ENGINE 9 - 161
REMOVAL AND INSTALLATION (Continued)