engine oil CHRYSLER VOYAGER 1996 Service Manual

CHECKING CRANKSHAFT END PLAY
(1) Mount a dial indicator to front of engine, locat-
ing probe on nose of crankshaft (Fig. 11).
(2) Move crankshaft all the way to the rear of its
travel.
(3) Zero the dial indicator.
(4) Move crankshaft all the way to the front and
read the dial indicator. Refer to Crankshaft Specifi-
cation Chart.
CRANKSHAFT SIZE CLASSIFICATION CHART
SIZE NEW CURRENT
MAIN JOURNAL
59.982 - 59.988 mm
(2.3615 - 2.3617 in.)2 WHITE
ENAMEL
59.988 - 59.994 mm
(2.3617 - 2.3620 in.)1 NONE
59.994 - 60.000 mm
(2.3620 - 2.3622 in.)0 YELLOW
ENAMEL
CONNECTING ROD JOURNAL
49.980 - 49.985 mm
(1.9677 - 1.9679 in.)III WHITE
ENAMEL
49.985 - 49.995 mm
(1.9679 - 1.9683 in.)II NONE
49.995 - 50.000 mm
(1.9683 - 1.9685 in.)I YELLOW
ENAMEL
Fig. 10 Bearing Identification
Fig. 11 Checking Crankshaft End Play
CRANKSHAFT SPECIFICATION CHART
Crankshaft End-Play
New Part: 0.05 - 0.25 mm
0.002 - 0.001 in.)
Wear Limit: 0.30 mm (0.012 in.)
Main Bearing Oil Clearance
New Part: 0.018 - 0.036 mm
(0.0007 - 0.0014 in.)
Wear Part: 0.10 mm (0.0039 in.)
Crankshaft Main Bearing Journal
Standard Diameter: 59.980 mm (2.361 in.)
Crankshaft Connecting Rod Journal
Standard Diameter: 50.00 mm (1.968 in.)
NS3.0L ENGINE 9 - 65
SERVICE PROCEDURES (Continued)

(25) Remove ground straps to body.
(26) Raise vehicle enough to allow engine dolly
Special Tool 6135 and cradle Special Tool 6710 with
post Special Tool 6848 and adaptor Special Tool 6909
to be installed under vehicle (Fig. 24).
(27) Loosen cradle engine mounts to allow move-
ment for positioning onto engine locating holes on the
engine. Lower vehicle and position cradle mounts
until the engine is resting on mounts. Tighten
mounts to cradle frame. This will keep mounts from
moving when removing or installing engine and
transmission.
(28) Lower vehicle so the weight ofONLY THE
ENGINE AND TRANSMISSIONis on the cradle.
(29) Remove right engine mount assembly and left
transmission mount through bolt. Refer to Engine
Mounts Section of this Group.
(30) Raise vehicle slowly. It may be necessary to
move the engine/transmission assembly on the cradle
to allow for removal around body flanges.
INSTALLATION
(1) Position engine and transmission assembly
under vehicle and slowly lower the vehicle over the
engine and transmission. It may be necessary to
move the engine/transmission assembly with the cra-
dle for clearance around body flanges.
(2) Align engine and transmission mounts to
attaching points. Install mounting bolts at the right
engine and left transmission mounts. Refer to proce-
dures outlined in this section.(3) Slowly raise vehicle enough to remove the
engine dolly and cradle Special Tools 6135, 6710,
6848 and 6909.
(4) Remove Special tools 6910 and install bending
braces.
(5) Lower vehicle. Install generator and wiring
harness.
(6) Connect wiring harness on the front of the
engine.
(7) Install Air Conditioning Compressor.
(8) Install power steering pump and bracket and
accessory drive belt. Refer to Group 7. Accessory
Drive Belts Section for installation procedure.
(9) Raise vehicle and install axle shafts. Refer to
Group 2, Driveshafts for procedure.
(10) Install transmission and engine mount and
bracket assemblies. Refer to Engine Mounts in this
section for procedure.
(11) Connect exhaust system to manifold. Refer to
Group 11, Exhaust System and Intake Manifold for
procedure and torque specifications.
(12) Install left and right inner splash shields.
(13) Connect automatic transmission shifter link-
age. Refer to Group 21, Transmission for procedures.
(14) Lower vehicle and connect fuel line and
heater hoses. Remove plugs from rear heater hoses
and install, if equipped.
(15) Install ground straps. Connect engine and
throttle body connections and harnesses.
(16) Connect throttle body linkage. Refer to Group
14, Fuel System for procedure.
(17) Install radiator and fan module assembly.
Install radiator hoses. Fill cooling system. Refer to
Group 7, Cooling for procedures.
(18) Install battery tray, battery and cover.
(19) Install air cleaner and hoses.
(20) Install oil filter. Fill engine crankcase with
proper oil to correct level.
(21) Start engine and run until operating temper-
ature is reached.
(22) Adjust transmission linkage, if necessary.
CYLINDER HEAD COVER
REMOVAL
(1) Disconnect negative cable from battery.
(2) Remove air inlet resonator when removing left
head cover.
(3) When Removing left cylinder head cover,
remove dipstick tube.
(4) When removing right cylinder head cover
remove wiper unit. Refer to Wiper Unit Removal in
Group 8K.
(5) When removing right cylinder head cover,
remove accessory drive belt. Refer to Accessory Drive
Belt Removal in Group 7.
Fig. 24 Positioning Engine Cradle Support Post
MountsÐTypical
9 - 70 3.0L ENGINENS
REMOVAL AND INSTALLATION (Continued)

(6) When removing right cylinder head cover, dis-
connect generator wiring and remove generator.
(7) Relocate spark plug wires.
(8) Remove vacuum connections.
(9) Remove rocker cover screws and remove cover
(Fig. 25).
INSTALLATION
(1) Clean cylinder head and cover mating surfaces.
Install new gasket.
(2) See (Fig. 25) and apply sealant such as Mopar
Silicone Rubber Adhesive Sealant to cover ends.
(3) Install cover and tighten cover bolt washer and
gasket assembly to 10 N´m (88 in. lbs.).
(4) Reverse removal procedures for installation.
CAMSHAFT
REMOVAL
NOTE: SEE AUTO LASH ADJUSTER FUNCTION
CHECK BEFORE DISASSEMBLY
(1) Install auto lash adjuster retainers (Fig. 26).
(2) Remove distributor adaptor (Fig. 27).
(3) When removing camshaft bearing caps do not
remove the bolts from the bearing caps. Remove the
rocker arm, rocker shafts and bearing cap as an
assembly.
CAMSHAFT INSPECTION
(1) Inspect camshaft bearing journals for damage
and binding (Fig. 28). If journals are binding, also
check the cylinder head for damage. Also check cyl-
inder head oil holes for clogging.
(2) Front cylinder head camshaft check the tooth
surface of the distributor drive gear teeth of the cam-
shaft and replace if abnormal wear is evident (Fig.
28).
(3) Check the cam surface for abnormal wear and
damage and replace if defective. Also measure the
cam height (Fig. 28) and replace if out of limit, stan-
dard value is 41.25 mm (1.624 in.), wearlimitis
40.75 mm (1.604 in.).
CAMSHAFT INSTALL
Lubricate camshaft journals and cams with engine
oil and install camshaft on cylinder head.
Fig. 25 Rocker Cover
Fig. 26 Auto Lash Adjuster Retainers
NS3.0L ENGINE 9 - 71
REMOVAL AND INSTALLATION (Continued)

(3) Clean the area of the cylinder head where the
new cam plug will be installed.
(4)
Apply a light coating of Mopar Silicone Rubber
Adhesive Sealant to the outer diameter of the NEW cam
plug.
(5) Using a suitable installing tool and a hammer,
install the new cam plug to a depth of 0.5 mm (0.020
in.) below the surface of the cylinder head.
(6) Replace air cleaner assembly.
CAMSHAFT OIL SEAL PLUGÐ OUT OF
VEHICLE SERVICE
(1) Apply light coat of engine oil to the camshaft
oil seal lip.
(2) Install the oil seal using camshaft oil seal
installer tool MD-998713 (Fig. 31).
CAMSHAFT END SEAL (PLUG) SERVICE Ð
OUT OF VEHICLE SERVICE
Install end seal plug with Special Tool MD-998306
(Fig. 32).
Fig. 29 Rocker Arm Shaft Direction
Fig. 30 Distributor Drive
Fig. 31 Camshaft Oil SealÐInstallation
Fig. 32 Camshaft End Seal PlugÐInstallation
NS3.0L ENGINE 9 - 73
REMOVAL AND INSTALLATION (Continued)

(5) Turn crankshaft two full turns in clockwise
direction.Turn smoothly and in clockwise direc-
tion ONLY.
(6) Align the timing marks on the sprockets and
tighten the timing belt tensioner locking bolt to 25
N´m (250 in. lbs.) torque.
(7) Reassembly belt covers, engine bracket, insula-
tor, crankshaft pulleys, accessories and accessory
drive belts in reverse order.
OIL PAN
Oil pan to crankcase sealing is provided with
MopartSilicone Rubber Adhesive Sealant or equiva-
lent gasket material. See Form-In-Place Gaskets in
Standard Service Procedures.
(1) Apply sealant as shown in (Fig. 42).
(2) Install pan and tighten screws to 6 N´m (50 in.
lbs.) in sequence shown in (Fig. 43).
Fig. 41 Positioning Belt Tensioner
Fig. 42 Oil Pan Sealing
Fig. 43 Oil Pan Screw Tightening Sequence
Fig. 40 Timing Belt Tensioner
NS3.0L ENGINE 9 - 77
REMOVAL AND INSTALLATION (Continued)

FITTING PISTON RINGS
(1) Wipe cylinder bore clean. Insert ring and push
down with piston to ensure it is square in bore. The
ring gap measurement must be made with the ring
positioning at least 16 mm (0.63 in.) from bottom of
cylinder bore. Check gap with feeler gauge (Fig. 49).
Refer to Piston Ring Specification Chart.
(2) Check piston ring to groove clearance (Fig. 50).
Refer to Piston Ring Specification Chart.PISTON RINGSÐINSTALLATION
(1) The No. 1 and No. 2 piston rings have a differ-
ent cross section. Install rings with manufacturers
mark and size mark facing up, to the top of the pis-
ton (Fig. 51).
CAUTION: Install piston rings in the following
order:
a. Oil ring expander.
b. Upper oil ring side rail.
PISTON RING SPECIFICATION CHART
Ring Position Ring Gap Ring Gap Wear
LimitGroove Clearance Maximum Groove
Clearance
Upper Ring 0.30 - 0.45 mm
(0.012 - 0.018 in.)0.8 mm (0.031 in.) 0.05 - 0.09 mm
(0.002 - 0.0035 in.)0.10 mm (0.004 in.)
Intermediate Ring 0.25 - 0.40 mm
(0.010 - 0.016 in.)0.8 mm (0.031 in.) 0.02 - 0.06 mm
(0.0007 - 0.002 in.)0.10 mm (0.004 in.)
Oil Control Ring 0.30 - 0.90 mm
(0.012 - 0.035 in.)1.0 mm (0.039 in.) Oil Ring Side Rails Must Be Free To Rotate
After Assembly
Fig. 48 Piston Clearance and Wear
Fig. 49 Check Gap on Piston Rings
Fig. 50 Piston Ring Clearance
Fig. 51 Piston RingÐInstallation
NS3.0L ENGINE 9 - 79
REMOVAL AND INSTALLATION (Continued)

c. Lower oil ring side rail.
d. No. 2 Intermediate piston ring.
e. No. 1 Upper piston ring.
(2) Install the side rail by placing one end between
the piston ring groove and the expander. Hold end
firmly and press down the portion to be installed
until side rail is in position.Do not use a piston
ring expander(Fig. 52).
(3) Install upper side rail first and then the lower
side rail.
(4) Install No. 2 piston ring and then No. 1 piston
ring (Fig. 53).
(5)
Position piston ring end gaps as shown in (Fig. 54).
(6) Position oil ring expander gap at least 45É from
the side rail gaps butnoton the piston pin center or
on the thrust direction.
(7) Connecting rod front mark 72 must always face
forward, toward timing belt end. (Fig. 55)
(8) Install the piston and connecting rod assembly
into there respective bore from the cylinder block top.
CAUTION: Piston assemblies are not to be inter-
changed from bank to bank.(9) Check alignment marks made during disassem-
bly and that bearing position notches new or used
are on the same side as shown in (Fig. 56).
Fig. 52 Side RailÐInstallation
Fig. 53 Installing Upper and Intermediate Rings
Fig. 54 Piston Ring End Gap Position
Fig. 55 Identify Piston and Rod Assembly for
Cylinder Installation
Fig. 56 Connecting Rod and Cap
9 - 80 3.0L ENGINENS
REMOVAL AND INSTALLATION (Continued)

CRANKSHAFT
REMOVAL
(1) Remove front mounted oil pump assembly and
gasket (Fig. 57) and (Fig. 58).
(2) Remove rear oil seal retainer and seal as
assembly (Fig. 59).(3) Release mono-block main bearing cap bolts
evenly. Remove lower bearing shells and identify for
reassembly.
(4) Lift out crankshaft and remove upper thrust
washers from each side of number three main bear-
ing in the crankcase (Fig. 57).
Fig. 57 Crankshaft and Cylinder Block
Fig. 58 Oil Pump Assembly
Fig. 59 Rear Seal Assembly
NS3.0L ENGINE 9 - 81
REMOVAL AND INSTALLATION (Continued)

CRANKSHAFT BEARINGSÐINSTALLATION
(1) Install upper main bearing shells making cer-
tain oil holes are in alignment, and bearing tabs seat
in block tabs. All upper bearings have oil grooves
(Fig. 60).
(2)THRUST BEARINGS.Crankshaft thrust
bearings (washers) are installed at journal #3 sepa-
rately from the radial bearings. Thrust bearings
shown in (Fig. 60) are different, one has end position-
ing tabs, while the other is plain. Onepairof each
thrust washers are installed into the block and one
pairinto the main bearing cap (Fig. 60).(3) Apply a thin film of grease to plain side of
thrust washers and position them on each side of
number three main bearing. Grooved surface towards
crankshaft.
(4) Oil the bearings and journals and install
crankshaft.
(5) Install lower main bearing shells without oil
grooves in mono-block cap.
(6) Install one pair of thrust washers in cap. Refer
to Thrust Bearings (Fig. 60).
(7) Carefully install bearing cap with arrows (Fig.
61) toward timing belt end.
(8) Oil the bearing cap bolt threads, install and
tighten bolts progressively in sequence shown in (Fig.
61) to 80 N´m (60 ft. lbs.) torque.
Fig. 60 Main BearingsÐInstallation
9 - 82 3.0L ENGINENS
REMOVAL AND INSTALLATION (Continued)

REAR CRANKSHAFT SEAL
REAR CRANKSHAFT SEAL RETAINER
(1) Install rear crankshaft oil seal in housing with
Special Tool MD-998718 (Fig. 62).
(2) Apply Mopar Silicone Rubber Adhesive Sealant
or equivalent to oil seal housing (Fig. 63) per proce-
dure detailed in form-in-place gasket section in Stan-
dard Service Procedures.(3) Apply light coating of engine oil to the entire
circumference of oil seal lip.
(4) Install seal assembly on cylinder block and
tighten bolts to 12 N´m (104 in. lbs.)
FRONT CRANKSHAFT OIL SEAL
(1) Install oil pump gasket and oil pump case (Fig.
65) and (Fig. 64).
CAUTION: Install bolts, depending on length in
locations shown in (Fig. 64).
(2) Using front crankshaft oil seal installer Special
Tool MD-998717 install oil seal in oil pump (Fig. 65).
Fig. 62 Rear Crankshaft Oil SealÐInstallation
Fig. 61 Crankshaft Main Bearing Cap
Fig. 63 Apply Sealant to Oil Seal Housing
NS3.0L ENGINE 9 - 83
REMOVAL AND INSTALLATION (Continued)