engine oil DODGE NEON 2000 Service Manual Online

(5) Slide the rocker arms and spacers off the shaft.
Keep the spacers and rocker arms in the same loca-
tion for reassembly.
NOTE: Inspect the rocker arm for scoring, wear on
the roller or damage to the rocker arm (Fig. 49)
Replace if necessary. Check the location where the
rocker arms mount to the shafts for wear or dam-
age. Replace if damaged or worn. The rocker arm
shaft is hollow and is used as a lubrication oil duct.
Check oil holes for clogging with small wire, clean
as required. Lubricate the rocker arms and spacers.
Install onto shafts in their original position (Fig. 48).
INSTALLATION
CAUTION: Set crankshaft to 3 notches before TDC
before installing rocker arm shafts. Refer to Timing
Belt System and Camshaft Seal Service of this sec-
tion for procedure.
(1) Install rocker arm/hydraulic lash adjuster
assembly making sure that adjusters are at least
partially full of oil. This is indicated by little or no
plunger travel when the lash adjuster is depressed. If
there is excessive plunger travel. Place the rocker
arm assembly into clean engine oil and pump the
plunger until the lash adjuster travel is taken up. If
travel is not reduced, replace the assembly. Hydraulic
lash adjuster and rocker arm are serviced as an
assembly.(2) Install rocker arm and shaft assemblies with
NOTCH in the rocker arm shafts pointing up and
toward the timing belt side of the engine (Fig. 50).
Install the retainers in their original positions on the
exhaust and intake shafts (Fig. 48).
CAUTION: When installing the intake rocker arm
shaft assembly be sure that the plastic spacers do
not interfere with the spark plug tubes. If the spac-
ers do interfere rotate until they are at the proper
angle. To avoid damaging the spark plug tubes, do
not attempt rotating the spacers by forcing down
the shaft assembly.
(3) Tighten bolts to 28 N´m (250 in. lbs.) in
sequence shown in (Fig. 51).
(4) Install cylinder head cover. Refer to procedures
in this section.
Fig. 48 Rocker Arm Shaft Assemblies
1 ± EXHAUST ROCKER ARM ASSEMBLY
2 ± PLASTIC SHAFT SPACERS
3 ± INTAKE ROCKER ARM ASSEMBLY
4 ± ROCKER ARM SHAFT RETAINERS
Fig. 49 Rocker Arm Assemblies
1 ± EXHAUST ROCKER ARM
2 ± HYDRAULIC LASH ADJUSTERS
3 ± INTAKE ROCKER ARM
4 ± ROLLERS
Fig. 50 Rocker Arm Shaft Notches
1 ± NOTCHES FACING UP AND TOWARD THE TIMING BELT
SIDE OF THE ENGINE
PL2.0L SOHC ENGINE 9 - 35
REMOVAL AND INSTALLATION (Continued)

HYDRAULIC LASH ADJUSTER NOISE
A tappet-like noise may be produced from several
items. Refer to Lash Adjuster Noise - Diagnosis in
Standard Service Procedures, in this Group.Lash
adjusters are replaced with the rocker arm as
an assembly.
VALVE SEALS AND SPRINGSÐIN VEHICLE
REMOVAL
(1) Remove rocker arm shafts assemblies. Refer to
procedure in this section.
(2) Rotate crankshaft until piston is at TDC on
compression stroke.
(3) With air hose attached to adapter tool installed
in spark plug hole, apply 90-120 psi air pressure.
(4) Using Special Tool MD-998772A with adapter
6779 (Fig. 52) compress valve springs and remove
valve locks.
(5) Remove valve spring.
(6) Remove valve stem seal by using a valve stem
seal tool (Fig. 53).
INSTALLATION
(1) Install valve seal/valve spring seat assembly.
Refer to Valve Installation procedure in this section.
(2) Using Special Tool MD-998772A compress valve
springs only enough to install locks. Correct align-
ment of tool is necessary to avoid nicking valve stems
(air pressure required), piston at TDC.
(3) Install rocker arm shaft assemblies. Refer to
procedure in this section.
(4) Install cylinder head cover. Refer to procedure
in this section.
Fig. 51 Rocker Arm Shaft Tightening Sequence
Fig. 52 Valve SpringÐRemoving and Installing
1 ± VALVE SPRING COMPRESSOR SPECIAL TOOL MD-998772A
2 ± ADAPTER 6779
3 ± AIR HOSE
Fig. 53 Valve Stem Oil Seal Tool
1 ± VALVE SEAL TOOL
2 ± VALVE STEM
Fig. 54 Valve Spring Assembly
1 ± VALVE RETAINING LOCKS
2 ± VALVE SPRING
3 ± VALVE SEAL AND VALVE SPRING SEAT ASSEMBLY
4 ± VALVE SPRING RETAINER
9 - 36 2.0L SOHC ENGINEPL
REMOVAL AND INSTALLATION (Continued)

CYLINDER HEAD
REMOVAL
(1) Perform fuel system pressure release procedure
before attempting any repairs.Refer to Group 14,
Fuel System
(2) Disconnect negative battery cable.
(3) Remove power steering/air conditioning drive
belt. Refer to Group 7, Cooling System Accessory
Drive for procedure.
(4) Raise vehicle.
(5) Drain cooling system. Refer to Group 7, Cooling
System.
(6) Remove exhaust pipe from manifold.
(7) Remove right front wheel.
(8) Remove right side splash shield.
(9) Remove generator belt. Refer to Group 7, Cool-
ing System Accessory Drive Belts for procedure.
(10) Remove crankshaft damper. Refer to proce-
dure in this section.
(11) Remove lower torque strut.
(12) Lower vehicle and remove upper torque strut.
(13) Remove ground strap and power steering hose
support clip from engine mount bracket.
(14) Remove power steering pump assembly and
set aside.
(15) Support engine from beneath with a suitable
jack.
(16) Remove right side engine mount to bracket
through bolt.
(17) Remove the lower engine mount bracket bolt.
Raise engine slightly and remove the upper engine
mount bracket bolts.(18) Remove engine mount bracket. This procedure
may require additional raising/lowering of engine
until bracket will clear engine components.
(19) Remove front timing belt cover.
(20) Rotate engine until timing marks are aligned.
(21) Remove timing belt and tensioner. Refer to
procedures in this section.
(22) Remove camshaft sprocket. Refer to proce-
dures in this section.
(23) Remove rear timing belt cover.
(24) Disconnect fuel line at fuel rail.
(25) Remove coolant recovery container.
(26) Remove ground wire to cylinder head.
(27) Remove upper radiator hose.
(28) Remove intake manifold. Refer to procedure
in this section.
(29) Disconnect ignition coil electrical connector.
Remove coil pack and spark plug cables from engine.
(30) Remove Crankcase Closed Ventilation (CCV)
hose from cylinder head cover.
(31) Disconnect cam sensor and coolant tempera-
ture electrical connectors.
(32) Remove heater tube to cylinder head attach-
ing fasteners.
(33) Remove heater hose from thermostat housing
connector.
(34) Remove cylinder head cover.
(35) Remove cylinder head bolts.
(36) Remove cylinder head and gasket (Fig. 55).
PL2.0L SOHC ENGINE 9 - 37
REMOVAL AND INSTALLATION (Continued)

(2) Apply MopartGasket Sealant (aerosol can) to
both sides of the new cylinder head gasket.
(3) Position a new cylinder head gasket on the
locating dowels.
(4) Position crankshaft sprocket to TDC, then
rotate crankshaft until mark is three teeth before
TDC (Fig. 59). This will ensure that no piston-to-
valve contact occurs upon installation of cylinder
head in the event of camshaft rotation.
(5) Position the cylinder head onto the cylinder
block. Make sure the cylinder head seats fully over
the locating dowels.
(6) Before installing cylinder head bolts, the
threads should be oiled with engine oil. The 4 shorter
bolts 164 mm (6.45 in.), are to be installed in posi-
tions 7, 8, 9, and 10 (Fig. 60).
(7) Tighten the cylinder head bolts in the sequence
shown in (Fig. 60). Using the 4 step torque method,
tighten according to the following values:²First All to 34 N´m (25 ft. lbs.)
²Second All to 68 N´m (50 ft. lbs.)
²Third All to 68 N´m (50 ft. lbs.)
²Fourth Turn an additional 1/4 Turn.Do not use
a torque wrench for this step.
(8) Install cylinder head cover.
(9) Install heater hose to thermostat housing con-
nector.
(10) Install heater tube to cylinder head attaching
fasteners.
(11) Connect cam sensor and coolant temperature
electrical connectors.
(12) Connect Crankcase Closed Ventilation (CCV)
hose to cylinder head cover.
Fig. 56 Checking Cylinder Head Flatness
1 ± FEELER GAUGE
2 ± STRAIGHT EDGE
Fig. 57 Checking Bolts for Stretching (Necking)
1 ± STRETCHED BOLT
2 ± THREADS ARE NOT STRAIGHT ON LINE
3 ± THREADS ARE STRAIGHT ON LINE
4 ± UNSTRETCHED BOLT
Fig. 58 Proper Tool Usage for Surface Preparation
1 ± ABRASIVE PAD
2 ± 3M ROLOCYBRISTLE DISC
3 ± PLASTIC/WOOD SCRAPER
Fig. 59 Crankshaft Sprocket Position
1 ± TDC MARK
PL2.0L SOHC ENGINE 9 - 39
REMOVAL AND INSTALLATION (Continued)

(13) Install ignition coil and spark plug cables.
Connect coil electrical connector.
(14) Install intake manifold. Refer to procedure in
this section.
(15) Install upper radiator hose.
(16) Install ground wire to cylinder head.
(17) Install coolant recovery container.
(18) Connect fuel line to fuel rail.
(19) Install rear timing belt cover, camshaft
sprocket, and timing belt tensioner and timing belt.
Refer to procedures in this section.
(20) Install front timing belt cover.
(21) Install engine mount bracket.
(22) Position engine and install right side engine
mount to engine mount bracket bolt. Tighten bolt to
118 N´m (87 ft. lbs.). Remove jack from beneath
engine.
(23) Install power steering pump assembly.
(24) Install power steering hose support clip and
ground strap to engine mount bracket.
(25) Install upper torque strut.
(26) Raise vehicle.
(27) Install lower torque strut.
(28) Install crankshaft damper.
(29) Install accessory drive belts. Refer to Group 7,
Cooling System Accessory Drive Belt for procedure.
(30) Install right side splash shield and front
wheel.
(31) Install exhaust pipe to exhaust manifold
flange.
(32) Lower vehicle and fill cooling system. Refer to
Group 7, Cooling System for procedure.
(33) Connect negative cable to battery.
(34) Perform camshaft and crankshaft timing
relearn procedure as follows:
²Connect the DRB scan tool to the data link
(diagnostic) connector. This connector is located in
the passenger compartment; at the lower edge of
instrument panel; near the steering column.
²Turn the ignition switch on and access the ªmis-
cellaneousº screen.
²Select ªre-learn cam/crankº option and follow
directions on DRB screen.
CRANKSHAFT DAMPER
REMOVAL
(1) Remove accessory drive belts. Refer to Group 7,
Cooling System for procedure.
(2) Raise vehicle on a hoist and remove right inner
splash shield.
(3) Remove crankshaft damper bolt. Remove
damper using the large side of Special Tool 1026 and
insert 6827-A (Fig. 61).
INSTALLATION
(1) Install crankshaft damper using M12±1.75 x
150 mm bolt, washer, thrust bearing and nut from
Special Tool 6792 (Fig. 62).
Fig. 62 Crankshaft DamperÐInstallation
1 ± M12 Ð 1.753150 MM BOLT, WASHER AND THRUST
BEARING FROM SPECIAL TOOL 6792
Fig. 60 Cylinder Head Tightening Sequence
Fig. 61 Crankshaft DamperÐRemoval
1 ± SPECIAL TOOL 6827±A INSERT
2 ± SPECIAL TOOL 1026 THREE JAW PULLER
9 - 40 2.0L SOHC ENGINEPL
REMOVAL AND INSTALLATION (Continued)

TIMING BELT
CHECKING BELT TIMINGÐCOVER INSTALLED
²Remove number one spark plug.
²Using a dial indicator, set number one cylinder
to TDC on the compression stroke.
²Remove the access plug from the outer timing
belt cover (Fig. 67).
²Check the timing mark on the camshaft
sprocket, it should align with the arrow on the rear
belt cover (Fig. 68).
REMOVALÐTIMING BELT
(1) Remove accessory drive belts. Refer to Group 7,
Cooling System for procedures.
(2) Raise vehicle on a hoist and remove right inner
splash shield.(3) Remove crankshaft damper bolt. Remove
damper using Special Tools 1026 three jaw puller
and 6827-A insert (Fig. 69).
(4) Remove lower torque strut.
(5) Lower vehicle and place a jack under engine.
(6) Remove upper torque strut.
(7) Remove right engine mount to engine mount
bracket through bolt.
(8) Remove power steering pump assembly and set
aside.
(9) Remove engine mount bracket (Fig. 70).
(10) Remove front timing belt cover (Fig. 71).
CAUTION: Align camshaft and crankshaft timing
marks before removing the timing belt by rotating
the engine with the crankshaft.
Fig. 67 Timing Belt System
1 ± CAMSHAFT SPROCKET
2 ± REAR TIMING BELT COVER
3 ± TIMING BELT TENSIONER ASSEMBLY
4 ± WATER PUMP
5 ± OIL PUMP BODY
6 ± CRANKSHAFT SPROCKET7 ± TIMING BELT
8 ± BOLT
9 ± CRANKSHAFT DAMPER
10 ± FRONT TIMING BELT COVER
11 ± ACCESS PLUG
12 ± CAMSHAFT BOLT AND WASHER
PL2.0L SOHC ENGINE 9 - 43
REMOVAL AND INSTALLATION (Continued)

CAMSHAFT AND CRANKSHAFT TIMING
PROCEDURE AND BELT INSTALLATION
(1) Set crankshaft sprocket to TDC by aligning the
sprocket with the arrow on the oil pump housing,
then back off to 3 notches before TDC (Fig. 73).(2) Set camshaft to TDC by aligning mark on
sprocket with the arrow on the rear of timing belt
cover (Fig. 73).
(3) Move crankshaft to 1/2 mark before TDC (Fig.
75) for belt installation.
(4) Install timing belt. Starting at the crankshaft,
go around the water pump sprocket and then around
the camshaft sprocket.
(5) Move crankshaft sprocket to TDC to take up
belt slack.
(6) Remove the pin or 1/8º or 3 mm Allen wrench
from belt tensioner.
(7) Rotate crankshaft 2 revolutions and check the
alignment of the timing marks (Fig. 76).
(8) Install front timing belt cover.
(9) Install engine mount bracket.
Fig. 72 Timing Belt Removal
1 ± CAMSHAFT TIMING MARKS
2 ± BELT TENSIONER
3 ± CRANKSHAFT AT TDC
4 ± 1/8º OR 3mm ALLEN WRENCH
5 ± 8 mm ALLEN WRENCH
Fig. 73 Crankshaft Sprocket Timing
1 ± TDC MARK
Fig. 74 Camshaft Timing Mark
1 ± CAM SPROCKET TIMING MARK
2 ± ARROW ON REAR COVER
Fig. 75 Adjusting Crankshaft Sprocket for Timing
Belt Installation
1 ± TDC REFERENCE MARK
2 ± 1/2 NOTCH LOCATION
3 ± TDC MARK
PL2.0L SOHC ENGINE 9 - 45
REMOVAL AND INSTALLATION (Continued)

(10) Install right engine mount to engine mount
bracket through bolt.
(11) Remove jack from under engine.
(12) Install upper torque strut.
(13) Install power steering pump assembly.
(14) Raise vehicle and install lower torque strut.
(15) Install crankshaft damper using M12-1.75 x
150 mm bolt, washer, thrust bearing and nut from
Special Tool 6792. Install crankshaft damper bolt and
tighten to 142 N´m (100 ft. lbs.) (Fig. 77).
(16) Install accessory drive belts. Refer to Group 7,
Cooling System for procedures.
(17) Install right inner splash shield.
(18) Lower vehicle and perform camshaft and
crankshaft timing relearn procedure as follows:
²Connect the DRB scan tool to the data link
(diagnostic) connector. This connector is located in
the passenger compartment; at the lower edge of
instrument panel; near the steering column.
²Turn the ignition switch on and access the ªmis-
cellaneousº screen.
²Select ªre-learn cam/crankº option and follow
directions on DRB screen.
TIMING BELT TENSIONER
REMOVAL
(1) Remove timing belt. Refer to procedure in this
section.
(2) Remove tensioner assembly attaching bolts
(Fig. 78).
(3) Remove tensioner assembly.
CAUTION: The timing belt tensioner is serviced as
an assembly. To prevent premature timing belt fail-
ure, DO NOT separate the tensioner pulley from
mounting bracket.
INSTALLATION
(1) Install timing belt tensioner assembly. Tighten
attaching bolts to 31 N´m (275 in. lbs.).
(2) Install timing belt. Refer to procedure in this
section.
CAMSHAFT OIL SEAL
REMOVAL
CAUTION: Do Not Rotate the camshaft or crank-
shaft when timing belt is removed damage to the
engine may occur.
(1) Remove crankshaft damper, front timing belt
cover, timing belt and tensioner assembly. Refer to
procedures in this section.
(2) Hold camshaft sprocket with Special Tools
C-4687 and modified C-4687-1 as shown in (Fig. 79),
while removing attaching bolt.
(3) Remove sprocket from camshaft.
(4) Remove rear timing belt cover.
Fig. 76 Crankshaft and Camshaft Timing
1 ± CAMSHAFT TIMING MARKS
2 ± CRANKSHAFT AT TDC
Fig. 77 Crankshaft DamperÐInstallation
1 ± M12 Ð 1.753150 MM BOLT, WASHER AND THRUST
BEARING FROM SPECIAL TOOL 6792
9 - 46 2.0L SOHC ENGINEPL
REMOVAL AND INSTALLATION (Continued)

(5) Remove camshaft seal by carefully using a suit-
able pry tool. Be careful not to nick or damage thecamshaft seal surface or cylinder head seal retaining
bore.
CAUTION: Do not nick shaft seal surface or seal
bore.
(6) Shaft seal lip surface must be free of varnish,
dirt or nicks. Polish with 400 grit paper, if necessary.
INSTALLATION
(1) Install camshaft seal flush with cylinder head
using Special Tool MD998306 (Fig. 80).
(2) Install rear timing belt cover.
(3) Install camshaft sprocket retaining bolt. Hold
camshaft sprocket with Special Tools C-4687 and
modified C-4687-1 (Fig. 79) and tighten bolt to 115
N´m (85 ft. lbs.).
(4) Install timing belt tensioner, timing belt, front
cover, and crankshaft damper. Refer to procedures in
this section.
OIL PAN
REMOVAL
(1) Disconnect negative cable from battery.
(2) Raise vehicle on hoist.
(3) Drain engine oil and remove oil filter.
(4) Remove oil filter adaptor from engine block
(Fig. 81).
(5) Remove structural collar. Refer to procedure in
this section.
(6) Remove lateral bending brace attaching bolts
(Fig. 82).
(7) Remove lateral bending brace (Fig. 82).
(8) Remove transaxle dust cover (Fig. 82).
(9) Remove oil pan bolts.
(10) Remove oil pan.
INSTALLATION
(1) Clean oil pan and all sealing surfaces.
Fig. 78 Timing Belt Tensioner AssemblyÐRemoval/
Installation
1 ± TIMING BELT TENSIONER ASSEMBLY
2 ± TENSIONER ASSEMBLY ATTACHING BOLTS
Fig. 79 Modification to Special Tool
1 ± GRIND LOCATION
2 ± 12.7 MM (1/2 IN.)
3 ± 50.8 MM (2 IN.)
Fig. 80 Camshaft Oil SealÐInstallation
1 ± SPECIAL TOOL MD 998306
PL2.0L SOHC ENGINE 9 - 47
REMOVAL AND INSTALLATION (Continued)

(2) Apply MopartSilicone Rubber Adhesive Seal-
ant at the oil pump to engine block parting line (Fig.
83).
(3) Position a new oil pan gasket onto pan.
(4) Install oil pan and tighten screws to 12 N´m
(105 in. lbs.).
(5) Install transaxle dust cover (Fig. 82).
(6) Install lateral bending brace (Fig. 82).(7) Install structural collar. Refer to procedure in
this section.
(8) Install oil filter adaptor and tighten assembly
to 80 N´m (60 ft. lbs.) (Fig. 81).
(9) Install oil filter.
(10) Lower vehicle and fill engine crankcase with
proper oil to correct level.
CRANKSHAFT OIL SEALÐFRONT
REMOVAL
(1) Remove accessory drive belts. Refer to Group 7,
Cooling System for procedures.
(2) Remove crankshaft damper. Refer to procedure
in this section.
(3) Remove front timing belt cover and timing belt.
Refer to procedures in this section.
(4) Remove crankshaft sprocket using Special Tool
6793 and insert C-4685-C2 (Fig. 84).
(5) Remove crankshaft sprocket key from crank-
shaft (Fig. 85).
CAUTION: Do not nick shaft seal surface or seal
bore.
Fig. 81 Oil Filter Adaptor
1 ± O-RING
2 ± LOCATING ROLL PIN
3 ± OIL FILTER ADAPTER
Fig. 82 Bending Brace, Structural Collar, and Dust
Cover
1 ± LATERAL BENDING BRACE
2 ± STRUCTURAL COLLAR
3 ± DUST COVER
Fig. 83 Oil Pan Sealing
1 ± PLACE A 1/8 INCH BEAD OF SEALER AT THE PARTING
LINE OF THE OIL PUMP TO ENGINE BLOCK
Fig. 84 Crankshaft SprocketÐRemoval
1 ± SPECIAL TOOL 6793
2 ± SPECIAL TOOL C-4685-C2
3 ± CRANKSHAFT SPROCKET
9 - 48 2.0L SOHC ENGINEPL
REMOVAL AND INSTALLATION (Continued)