Chrysler Stratus Convertible. Manual — part 369
stretching or other damage. Replace drain plug and
gasket if damaged.
(6) Install drain plug in crankcase.
(7) Lower vehicle and fill crankcase with specified
type and amount of engine oil described in this sec-
tion.
(8) Install oil fill cap.
(9) Start engine and inspect for leaks.
(10) Stop engine and inspect oil level.
ENGINE OIL FILTER CHANGE
FILTER SPECIFICATION
All engines are equipped with a high quality full-
flow, disposable type oil filter. Replace oil filter with
a Mopar
t or the equivalent.
OIL FILTER REMOVAL
Refer to Removal and Installation Section in Group
9, Engine for procedure.
USED ENGINE OIL DISPOSAL
Care should be exercised when disposing used
engine oil after it has been drained from a vehicle
engine. Refer to the WARNING listed above.
FORM-IN-PLACE GASKETS & SEALERS
There are numerous places where form-in-place
gaskets are used on the engine. Care must be taken
when
applying
form-in-place
gaskets
to
assure
obtaining the desired results. Do not use form-in-
place gasket material unless specified. Bead size,
continuity, and location are of great importance. Too
thin a bead can result in leakage while too much can
result in spill-over which can break off and obstruct
fluid feed lines. A continuous bead of the proper
width is essential to obtain a leak-free gasket.
There are numerous types of form-in-place gasket
materials that are used in the engine area. Mopar
t
Engine RTV GEN II, Mopar
t ATF-RTV, and Mopart
Gasket Maker gasket materials, each have different
properties and can not be used in place of the other.
MOPAR
t ENGINE RTV GEN II
Mopar
t Engine RTV GEN II is used to seal com-
ponents exposed to engine oil. This material is a spe-
cially designed black silicone rubber RTV that
retains
adhesion
and
sealing
properties
when
exposed to engine oil. Moisture in the air causes the
material to cure. This material is available in three
ounce tubes and has a shelf life of one year. After one
year this material will not properly cure. Always
inspect the package for the expiration date before
use.
MOPAR
t ATF RTV
Mopar
t ATF RTV is a specifically designed black
silicone rubber RTV that retains adhesion and seal-
ing properties to seal components exposed to auto-
matic
transmission
fluid,
engine
coolants,
and
moisture. This material is available in three ounce
tubes and has a shelf life of one year. After one year
this material will not properly cure. Always inspect
the package for the expiration date before use.
MOPAR
t GASKET MAKER
Mopar
t Gasket Maker is an anaerobic type gasket
material. The material cures in the absence of air
when squeezed between two metallic surfaces. It will
not cure if left in the uncovered tube. The anaerobic
material is for use between two machined surfaces.
Do not use on flexible metal flanges.
MOPAR
t BED PLATE SEALANT
Mopar
t Bed Plate Sealant is a unique (green-in-
color) anaerobic type gasket material that is specially
made to seal the area between the bedplate and cyl-
inder block without disturbing the bearing clearance
or alignment of these components. The material
cures slowly in the absence of air when torqued
between two metallic surfaces, and will rapidly cure
when heat is applied.
MOPAR
t GASKET SEALANT
Mopar
t Gasket Sealant is a slow drying, perma-
nently soft sealer. This material is recommended for
sealing threaded fittings and gaskets against leakage
of oil and coolant. Can be used on threaded and
machined parts under all temperatures. This mate-
rial is used on engines with multi-layer steel (MLS)
cylinder head gaskets. This material also will pre-
vent corrosion. Mopar
t Gasket Sealant is available in
a 13 oz. aerosol can or 4oz./16 oz. can w/applicator.
FORM-IN-PLACE GASKET AND SEALER
APPLICATION
Assembling parts using a form-in-place gasket
requires care but it’s easier then using precut gas-
kets.
Mopar
t Gasket Maker material should be applied
sparingly 1 mm (0.040 in.) diameter or less of sealant
to one gasket surface. Be certain the material sur-
rounds each mounting hole. Excess material can eas-
ily be wiped off. Components should be torqued in
place within 15 minutes. The use of a locating dowel
is recommended during assembly to prevent smear-
ing material off the location.
Mopar
t Engine RTV GEN II or ATF RTV gasket
material should be applied in a continuous bead
approximately 3 mm (0.120 in.) in diameter. All
mounting holes must be circled. For corner sealing, a
3.17 or 6.35 mm (1/8 or 1/4 in.) drop is placed in the
center of the gasket contact area. Uncured sealant
may be removed with a shop towel. Components
should be torqued in place while the sealant is still
wet to the touch (within 10 minutes). The usage of a
JX
ENGINE
9 - 17
SERVICE PROCEDURES (Continued)
locating dowel is recommended during assembly to
prevent smearing material off the location.
Mopar
t Gasket Sealant in an aerosol can should be
applied using a thin, even coat sprayed completely
over both surfaces to be joined, and both sides of a
gasket. Then proceed with assembly. Material in a
can w/applicator can be brushed on evenly over the
sealing surfaces. Material in an aerosol can should be
used on engines with multi-layer steel gaskets.
ENGINE GASKET SURFACE PREPARATION
To ensure engine gasket sealing, proper surface
preparation must be performed, especially with the
use of aluminum engine components and multi-layer
steel cylinder head gaskets.
Never use the following to clean gasket surfaces:
• Metal scraper
• Abrasive pad or paper to clean cylinder block
and head
• High speed power tool with an abrasive pad or a
wire brush (Fig. 12)
NOTE: Multi-Layer
Steel
(MLS)
head
gaskets
require a scratch free sealing surface.
Only use the following for cleaning gasket surfaces:
• Solvent or a commercially available gasket
remover
• Plastic or wood scraper (Fig. 12)
• Drill motor with 3M Rolocy Bristle Disc (white
or yellow) (Fig. 12)
CAUTION: Excessive
pressure
or
high
RPM
(beyond the recommended speed), can damage the
sealing surfaces. The mild (white, 120 grit) bristle
disc is recommended. If necessary, the medium
(yellow, 80 grit) bristle disc may be used on cast
iron surfaces with care.
REPAIR OF DAMAGED OR WORN THREADS
Damaged or worn threads (including aluminum
head spark plug threads) can be repaired. Essen-
tially, this repair consists of drilling out worn or
damaged threads, tapping the hole with a special
Heli-Coil Tap, (or equivalent) and installing an insert
into the tapped hole. This brings the hole back to its
original thread size.
CAUTION: Be sure that the tapped holes maintain
the original centerline.
Heli-Coil tools and inserts are readily available
from automotive parts jobbers.
CYLINDER BORE—HONING
(1) Used carefully, the cylinder bore resizing hone,
recommended tool C-823 or equivalent, equipped
with 220 grit stones, is the best tool for this honing
procedure. In addition to deglazing, it will reduce
taper and out-of-round as well as removing light
scuffing, scoring or scratches. Usually a few strokes
will clean up a bore and maintain the required lim-
its.
(2) Deglazing of the cylinder walls may be done
using a cylinder surfacing hone, recommended tool
C-3501 or equivalent, equipped with 280 grit stones,
if the cylinder bore is straight and round. 20–60
strokes depending on the bore condition, will be suf-
ficient to provide a satisfactory surface. Inspect cyl-
inder walls after each 20 strokes, using a light
honing oil. Do not use engine or transmission oil,
mineral spirits or kerosene.
(3) Honing should be done by moving the hone up
and down fast enough to get a cross-hatch pattern.
When hone marks intersect at 50-60 degrees, the
cross hatch angle is most satisfactory for proper seat-
ing of rings (Fig. 13).
(4) A
controlled
hone
motor
speed
between
200–300 RPM is necessary to obtain the proper cross-
hatch angle. The number of up and down strokes per
minute can be regulated to get the desired 50–60
degree angle. Faster up and down strokes increase
the cross-hatch angle.
(5) After honing, it is necessary that the block be
cleaned again to remove all traces of abrasive.
Fig. 12 Proper Tool Usage For Surface Preparation
1 – ABRASIVE PAD
2 – 3M ROLOC
Y
BRISTLE DISC
3 – PLASTIC/WOOD SCRAPER
9 - 18
ENGINE
JX
SERVICE PROCEDURES (Continued)
CAUTION: Ensure all abrasives are removed from
engine parts after honing. It is recommended that a
solution of soap and hot water be used with a
brush and the parts then thoroughly dried. The bore
can be considered clean when it can be wiped
clean with a white cloth and cloth remains clean.
Oil the bores after cleaning to prevent rusting.
CYLINDER—BORING
Examine cylinder walls for scuffs, scoring and mea-
sure cylinder bore for out-of-round or taper. If defec-
tive, bore cylinder to oversize. Measure at points
shown in (Fig. 14).
Four oversize pistons are available (0.25mm (.010
inch) 0.50mm (.020 inch) 0.75mm (.030 inch) and
1.0mm (.039 inch). Determine oversize piston on
basis of largest cylinder bore.
(1) Bore to specified clearance between the piston
O. D. and cylinder. The measuring point of the piston
O. D. is shown in (Fig. 15).
(2) Based on measured piston O. D., calculate bor-
ing finish dimension. Boring finish dimension equals
piston O. D. plus 0.03 to 0.05 mm (.0012 to.002 inch)
(clearance between piston O. D. and cylinder) minus
0.02 mm which is the boring margin.
(3) Bore all cylinders to calculated boring finish
dimension. Then bore the final finish dimension (pis-
ton O. D. plus cylinder clearance).
(4) Check clearance between piston and cylinder,
clearance should be 0.02 to 0.04 mm (0.0008 to
0.0016 inch).
PISTON—FITTING
Measure approximately 2 mm (0.080 in.) above the
bottom of the piston skirt and across the thrust face
(Fig. 16). Refer to Cylinder Boring.
PISTON RING—FITTING
(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
Fig. 13 Cylinder Bore Cross-Hatch Pattern
1 – CROSS-HATCH PATTERN
Fig. 14 Measure Cylinder Bore
Fig. 15 Measure Piston
Fig. 16 Measuring Piston for Clearance and Wear
JX
ENGINE
9 - 19
SERVICE PROCEDURES (Continued)
cylinder bore. Check gap with feeler gauge (Fig. 17).
Refer to Engine Specifications.
(2) Check piston ring to groove clearance (Fig. 18).
Refer to Engine Specifications.
CONNECTING ROD—FITTING
(1) Follow the procedures in the Standard Service
Procedures Section for Measuring Main Bearing and
Connecting Rod Bearing Clearances. (Fig. 19). Refer
to Engine Specifications.
(2) Tighten connecting rod nuts to 51 N·m (37 ft.
lbs.).
(3) Remove connecting rod cap and measure Plas-
tigage (Fig. 19). Refer to Engine Specifications
CAUTION: Do not rotate crankshaft or the Plasti-
gage may be smeared.
CONNECTING ROD SIDE CLEARANCE
Using a feeler gauge, check connecting rod side
clearance (Fig. 20). Refer to Engine Specifications.
CRANKSHAFT MAIN BEARING—FITTING
MAIN BEARING JOURNAL MEASUREMENT
Measure the journal outside diameter (Fig. 21). If
the clearance exceeds the specifications limit, replace
the main bearing(s), and if necessary, replace the
crankshaft. Refer to Engine Specifications.
PLASTIGAGE MEASUREMENT
(1) Remove oil from journal and bearing shell.
(2) Install crankshaft.
(3) Cut plastigage to same length as width of the
bearing and place it in parallel with the journal axis
(Fig. 22).
(4) Install the main bearing cap carefully and
tighten the bolts to specified torque.
Fig. 17 Check Gap on Piston Rings
1 – FEELER GAUGE
Fig. 18 Piston Ring Groove Clearance
Fig. 19 Checking Connecting Rod Bearing
Clearance
Fig. 20 Checking Connecting Rod Side Clearance
9 - 20
ENGINE
JX
SERVICE PROCEDURES (Continued)
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