1999 DODGE NEON engine oil

(11) Install oil pump. If crankshaft end play is to
be checked refer to service procedures in this section.
(12) Install crankshaft sprocket.
(13) Install oil filter adapter and filter.
(14) Install oil pan and structural collar. Refer to
procedures outlined in the section.
(15) 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.
OIL FILTER ADAPTER
REMOVE AND INSTALL
Ensure O-ring is in the groove on adapter. Align
roll pin into engine block and tighten assembly to 80
N´m (60 ft. lbs.) (Fig. 83).
OIL FILTER
REMOVE AND INSTALL
CAUTION: When servicing the oil filter (Fig. 84)
avoid deforming the filter, install tool band strap
against the seam at the base of the filter. The seam,
joining the can to the base is reinforced by the
base plate.
(1) Turn counterclockwise to remove.
(2) To install, lubricate new filter gasket. Check
filter mounting surface. The surface must be smooth,
flat and free of debris or old pieces of rubber. Screw
filter on until gasket contacts base. Tighten to 21
N´m (15 ft. lbs.).
OIL PUMP
REMOVAL
(1) Disconnect negative cable from battery.(2) Remove Timing Belt. Refer to procedure in this
section.
(3) Remove Oil Pan. Refer to procedure in this sec-
tion.
(4) Remove Crankshaft Sprocket using Special Tool
6793 and insert C-4685-C2 (Fig. 85).
(5) Remove oil pick-up tube.
(6) Remove oil pump (Fig. 86) and front crankshaft
seal.
INSTALLATION
(1) Make sure all surfaces are clean and free of oil
and dirt.
(2) Apply MopartGasket Maker to oil pump as
shown in (Fig. 87). Install oil ring into oil pump body
discharge passage.
(3) Prime oil pump before installation.
(4) Align oil pump rotor flats with flats on crank-
shaft as you install the oil pump to the block.
NOTE: Front crankshaft seal MUST be out of pump
to align, or damage may result.
Fig. 83 Engine Oil Filter Adapter to Engine Block
Fig. 84 Engine Oil Filter
Fig. 85 Crankshaft SprocketÐRemoval
9 - 42 2.0L SOHC ENGINEPL
REMOVAL AND INSTALLATION (Continued)

(5) Torque all oil pump attaching bolts to 28 N´m
(250 in. lbs.)
(6) Install new front crankshaft seal using Special
Tool 6780 (Fig. 88).
(7) Install crankshaft sprocket, using Special Tool
6792 (Fig. 89).
(8) Install oil pump pick-up tube and oil pan.
(9) Install Timing Belt. Refer to procedure outlined
in this section.
(10) Connect negative cable to battery.
Fig. 86 Oil Pump and Tube
Fig. 87 Oil Pump Sealing
Fig. 88 Front Crankshaft SealÐInstallation
PL2.0L SOHC ENGINE 9 - 43
REMOVAL AND INSTALLATION (Continued)

PISTON AND CONNECTING ROD
REMOVAL
(1) Remove top ridge of cylinder bores with a reli-
able ridge reamer before removing pistons from cyl-
inder block.Be sure to keep tops of pistons
covered during this operation. Mark piston with
matching cylinder number (Fig. 90).
(2) Remove oil pan. Scribe the cylinder number on
the side of the rod and cap (Fig. 91) for identification.(3) Pistons will have a stamping in the approxi-
mate location shown in (Fig. 90). These stamps will
be either a directional arrow or a weight identifica-
tion for the assembly. L is for light and H is for
heavy. These assemblies should all be the same
weight class. Service piston assemblies are marked
with a S and can be used with either L or H produc-
tion assemblies. The weight designation stamps
should face toward the timing belt side of the engine.
(4) Pistons and connecting rods must be removed
from top of cylinder block. Rotate crankshaft so that
each connecting rod is centered in cylinder bore.
(5) Remove connecting rod cap boltsDo not use
old bolts if reinstalling connecting rod.Push
each piston and rod assembly out of cylinder bore.
NOTE: Be careful not to nick crankshaft journals.
(6) After removal, install bearing cap on the mat-
ing rod.
(7) Piston and Rods are serviced as an assembly.
PISTON RINGÐREMOVAL
(1) ID mark on face of upper and intermediate pis-
ton rings must point toward piston crown.
(2) Using a suitable ring expander, remove upper
and intermediate piston rings (Fig. 92).
(3) Remove the upper oil ring side rail, lower oil
ring side rail and then oil ring expander from piston.
(4) Clean ring grooves of any carbon deposits.
PISTON RINGSÐINSTALLATION
(1) Install rings with manufacturers I.D. mark fac-
ing up, to the top of the piston (Fig. 93).
CAUTION: Install piston rings in the following
order:
a. Oil ring expander.
b. Upper oil ring side rail.
Fig. 89 Crankshaft SprocketÐInstallation
Fig. 90 Piston Markings
Fig. 91 Identify Connecting Rod to Cylinder
Fig. 92 Piston RingsÐRemoving and Installing
9 - 44 2.0L SOHC ENGINEPL
REMOVAL AND INSTALLATION (Continued)

c. Lower oil ring side rail.
d. No. 2 Intermediate piston ring.
e. No. 1 Upper piston ring.
f. 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. 94).
(2) Install upper side rail first and then the lower
side rail.
(3) Install No. 2 piston ring and then No. 1 piston
ring (Fig. 93).
(4) Position piston ring end gaps as shown in (Fig.
95).
(5) Position oil ring expander gap at least 45É from
the side rail gaps butnoton the piston pin center or
on the thrust direction. Staggering ring gap is impor-
tant for oil control.PISTON AND ROD ÐINSTALLATION
(1) Before installing pistons and connecting rod
assemblies into the bore, be sure that compression
ring gaps are staggered so that neither is in line with
oil ring rail gap.
(2) Before installing the ring compressor, make
sure the oil ring expander ends are butted and the
rail gaps located as shown in (Fig. 95).
(3) Immerse the piston head and rings in clean
engine oil, slide the ring compressor, over the piston
(Fig. 96).Be sure position of rings does not
change during this operation.
(4) The weight stamp designation L or H will be in
the front half of the piston should face toward the
front of the engine for SOHC engine. The arrow
should face toward the front of the engine for DOHC
engine (Fig. 90).
(5) Rotate crankshaft so that the connecting rod
journal is on the center of the cylinder bore. Insert
rod and piston assembly into cylinder bore and guide
rod over the crankshaft journal.
Fig. 93 Piston Ring Installation
Fig. 94 Installing Side Rail
Fig. 95 Piston Ring End Gap Position
Fig. 96 Installing Piston
PL2.0L SOHC ENGINE 9 - 45
REMOVAL AND INSTALLATION (Continued)

DISASSEMBLY AND ASSEMBLY
OIL PUMP
(1) To remove the relief valve, proceed as follows:
(2) Remove the threaded plug and gasket from the
oil pump (Fig. 101).
CAUTION: Oil pump pressure relief valve must be
installed as shown in (Fig. 101) or serious damage
may occur.
(3) Remove spring and relief valve (Fig. 101).
(4) Remove oil pump cover screws, and lift off
cover.
(5) Remove pump rotors.
(6) Wash all parts in a suitable solvent and inspect
carefully for damage or wear (Fig. 102).
VALVE SERVICE WITH THE CYLINDER HEAD
REMOVED
REMOVAL
(1) With cylinder head removed, compress valve
springs using Special Tool C-3422-B or equivalent.
(2) Remove valve retaining locks, valve spring
retainers, valve stem seals and valve springs.
(3) Before removing valves,remove any burrs
from valve stem lock grooves to prevent dam-
age to the valve guides.Identify valves to insure
installation in original location.
VALVE INSPECTION
(1) Clean valves thoroughly and discard burned,
warped and cracked valves.
(2) Measure valve stems for wear. Measure stem
about 60 mm beneath the valve lock grooves.
(3) If valve stems are worn more than 0.05 mm
(.002 in.), replace valve.
VALVE GUIDES
(1) Remove carbon and varnish deposits from
inside of valve guides with a reliable guide cleaner.
(2) Using a small hole gauge and a micrometer,
measure valve guides in 3 places top, middle and bot-
tom (Fig. 103). Refer to Valve Guide Specification
Chart for specifications. Replace guides if they are
not within specification.
(3) Check valve guide height (Fig. 104).
TESTING VALVE SPRINGS
(1) Whenever valves have been removed for inspec-
tion, reconditioning or replacement, valve springs
should be tested Special Tool C-647. As an example,
the compression length of the spring to be tested is
Fig. 101 Oil Pressure Relief Valve
Fig. 102 Oil Pump
Fig. 103 Checking Wear on Valve GuideÐTypical
PL2.0L SOHC ENGINE 9 - 47

²Exhaust valve seat diameter is 28 mm (1.102
in.)
(6) Valve seats which are worn or burned can be
reworked, provided that correct angle and seat width
are maintained. The intake valve seat must be ser-
viced when the valve seat width is 2.0 mm (0.079 in.)
or greater. The exhaust valve seat must be serviced
when the valve seat width is 2.5 mm (0.098 in.) or
greater. Otherwise the cylinder head must be
replaced.
(7) When seat is properly positioned the width of
intake and exhaust seats should be 0.75 to 1.25 mm
(0.030 to 0.049 in.) (Fig. 107).
(8) Check valve tip to spring seat dimensions A
after grinding the valve seats or faces. Grind valve
tip to 43.51 - 44.57 mm (1.71 - 1.75 in.) for exhaust
valve and 45.01 - 46.07 mm (1.77 - 1.81 in.) for
intake valve over spring seat when installed in thehead (Fig. 108). The valve tip chamfer may need to
be reground to prevent seal damage when the valve
is installed.
CLEANING
Clean all valve guides, valves and valve spring
assemblies thoroughly with suitable cleaning solution
before reassembling.
VALVE INSTALLATION
(1) Coat valve stems with clean engine oil and
insert in cylinder head.
(2) Install new valve stem seals on all valves using
a valve stem seal tool (Fig. 109). The valve stem
seals should be pushed firmly and squarely over
valve guide.
CAUTION: If oversize valves are used, there is only
one oversize valve available. The same stem seal is
used on both the standard and oversize valve.
(3) Install valve springs and retainers. Compress
valve springs only enough to install locks, taking
care not to misalign the direction of compression.
Nicked valve stems may result from misalignment of
the valve spring compressor.
VALVE SPECIFICATION CHART
Face Angle
Intake and
Exhaust:45 - 45 1/2É
Head Diameter
Intake: 33.12 - 33.37 mm (1.303 - 1.313 in.)
Exhaust: 28.57 - 28.83 mm (1.124 - 1.135 in.)
Length (Overall)
Intake: 114.69 - 115.19 mm (4.515 - 4.535 in.)
Exhaust: 116.94 - 117.44 mm (4.603 - 4.623 in.)
Stem Diameter
Intake: 5.934 - 5.952 mm (0.2337 - 0.2344 in.)
Exhaust: 5.906 - 5.924 mm (0.2326 - 0.2333 in.)
Valve Margin
Intake: 1.15 - 1.48 mm (0.0452 - 0.0582 in.)
Exhaust: 1.475 - 1.805 mm (0.0580 - 0.0710 in.)
Fig. 107 Valve Seat Refacing
Fig. 108 Spring Installed Height and Valve Tip to
Spring Seat Dimensions
Fig. 109 Valve Stem Oil Seal Tool
PL2.0L SOHC ENGINE 9 - 49
DISASSEMBLY AND ASSEMBLY (Continued)

CAUTION: When depressing the valve spring
retainers with valve spring compressor the locks
can become dislocated. Check to make sure both
locks are in their correct location after removing
tool.
(4) Check the valve spring installed height B after
refacing the valve and seat (Fig. 108). Make sure
measurements are taken from top of spring seat to
the bottom surface of spring retainer. If height is
greater than 40.18 mm (1.58 in.), install a 0.762 mm
(0.030 in.) spacer under the valve spring seat to
bring spring height back within specification.
(5) Install rocker arm shafts as previously
described in this section.
(6) Checking dry lash. Dry lash is the amount of
clearance that exists between the base circle of an
installed cam and the rocker arm roller when the
adjuster is drained of oil and completely collapsed.
Specified dry lash is 1.17 mm (0.046 in.) for intake
and 1.28 mm (0.050 in.) for exhaust. After performing
dry lash check, refill adjuster with oil and allow 10
minutes for adjuster/s to bleed down before rotating
cam.
CLEANING AND INSPECTION
CYLINDER HEAD AND CAMSHAFT JOURNALS
INSPECTING CYLINDER HEAD
Cylinder head must be flat within 0.1 mm (0.004
inch) (Fig. 110).
Inspect cylinder head camshaft bearings for wear.
Check camshaft journals for scratches and worn
areas. If light scratches are present, they may be
removed with 400 grit sand paper. If deep scratches
are present, replace the camshaft and check the cyl-
inder head for damage. Replace the cylinder head ifworn or damaged. Check the lobes for pitting and
wear. If the lobes show signs of wear, check the cor-
responding rocker arm roller for wear or damage.
Replace rocker arm/hydraulic lash adjuster if worn or
damaged. If lobes show signs of pitting on the nose,
flank or base circle; replace the camshaft.
CLEANING
Remove all gasket material from cylinder head and
block. Be careful not to gouge or scratch the alumi-
num head sealing surface.
OIL PUMP
(1) Clean all parts thoroughly. Mating surface of
the oil pump should be smooth. Replace pump cover
if scratched or grooved.
(2) Lay a straightedge across the pump cover sur-
face (Fig. 111). If a 0.076 mm (0.003 inch.) feeler
gauge can be inserted between cover and straight
edge, cover should be replaced.
(3) Measure thickness and diameter of outer rotor.
If outer rotor thickness measures 7.64 mm (0.301
inch.) or less (Fig. 112), or if the diameter is 79.95
mm (3.148 inches) or less, replace outer rotor.
(4) If inner rotor measures 7.64 mm (.301 inch) or
less replace inner rotor (Fig. 113).
(5) Slide outer rotor into pump housing, press to
one side with fingers and measure clearance between
rotor and housing (Fig. 114). If measurement is 0.39
mm (0.015 inch.) or more, replace housing only if
outer rotor is in specification.
(6) Install inner rotor into pump housing. If clear-
ance between inner and outer rotors (Fig. 115) is .203
mm (.008 inch) or more, replace both rotors.
(7) Place a straightedge across the face of the
pump housing, between bolt holes. If a feeler gauge
of .102 mm (.004 inch) or more can be inserted
between rotors and the straightedge, replace pump
assembly (Fig. 116).ONLYif rotors are in specs.
Fig. 110 Checking Cylinder Head Flatness
Fig. 111 Checking Oil Pump Cover Flatness
9 - 50 2.0L SOHC ENGINEPL
DISASSEMBLY AND ASSEMBLY (Continued)

(8) Inspect oil pressure relief valve plunger for
scoring and free operation in its bore. Small marks
may be removed with 400-grit wet or dry sandpaper.(9) The relief valve spring has a free length of
approximately 60.7 mm (2.39 inches) it should test
between 18 and 19 pounds when compressed to 40.5
mm (1.60 inches). Replace spring that fails to meet
specifications.
(10) If oil pressure is low and pump is within spec-
ifications, inspect for worn engine bearings, damaged
or missing oil pick-up tube o-ring, clogged oil pick-up
tube screen, clogged oil filter and stuck open pres-
sure relief valve or other reasons for oil pressure
loss.
CYLINDER BLOCK AND BORE
(1) Clean cylinder block thoroughly and check all
core hole plugs for evidence of leaking.
(2) If new core plugs are installed, Refer to Engine
Core Plugs outlined in this section.
(3) Examine block and cylinder bores for cracks or
fractures.
Fig. 112 Measuring Outer Rotor Thickness
Fig. 113 Measuring Inner Rotor Thickness
Fig. 114 Measuring Outer Rotor Clearance in
Housing
Fig. 115 Measuring Clearance Between Rotors
Fig. 116 Measuring Clearance Over Rotors
PL2.0L SOHC ENGINE 9 - 51
CLEANING AND INSPECTION (Continued)