lock CHRYSLER VOYAGER 1996 Service Manual

(3) Slowly rotate crankshaft clockwise, forcing out
upper half of bearing shell.
INSTALLATION
NOTE: Only one main bearing should be selec-
tively fitted while all other main bearing caps are
properly tightened.
When installing a new upper bearing shell, slightly
chamfer the sharp edges from the plain side.
(1) Start bearing in place, and insert Main Bearing
Tool C-3059 into oil hole of crankshaft (Fig. 64).
(2) Slowly rotate crankshaft counterclockwise slid-
ing the bearing into position. Remove Special Main
Bearing Tool C-3059.
(3) Install each main cap and tighten bolts finger
tight.
(4) Tighten number 1, 3 and 4 main cap bolts to 41
N´m + 1/4 Turn (30 ft. lbs.+ 1/4 Turn).(5) Rotate the crankshaft until number 6 piston is
at TDC.
(6) To ensure correct thrust bearing alignment the
following procedure must be done:
a. Move crankshaft all the way to the rear of its
travel.
b. Then, move crankshaft all the way to the front
of its travel.
c. Wedge a appropriate tool between the rear of
the cylinder block and rear crankshaft counter-
weight. This will hold the crankshaft in it's most for-
ward position.
d. Tighten the #2 Thrust Bearing cap bolts to 41
N´m + 1/4 Turn (30 ft. lbs.+ 1/4 Turn). Remove the
holding tool.
(7) Install oil pan.
(8) Fill engine crankcase with proper oil to correct
level.
CRANKSHAFT OIL SEALÐFRONT
REMOVAL
(1) Disconnect negative cable from battery.
(2) Raise vehicle on hoist. Remove right wheel and
inner splash shield.
(3) Remove drive belt. Refer to Group 7, Cooling
System for procedure.
(4) Remove crankshaft damper (Fig. 65).
(5) Using Tool 6341A to remove oil seal (Fig. 66).
Be careful not to damage that crankshaft seal sur-
face of cover.
INSTALLATION
(1) Install new seal by using Tool C-4992 (Fig. 67).
(2) Place seal into opening with seal spring
towards the inside of engine. Install seal until flush
with cover.
(3) Install crankshaft pulley using plate L-4524.
Thrust Bearing/washer and 5.9 inch screw (Fig. 68).
Fig. 63 Main Bearing Identification
Fig. 64 Removing and Installing Upper Main Bearing
With Special Tool C-3059
Fig. 65 Crankshaft DamperÐRemoval
NS3.3/3.8L ENGINE 9 - 117
REMOVAL AND INSTALLATION (Continued)

(4) Install drive belt Refer to Group 7, Cooling
System for installation procedure.
(5) Install inner splash shield and wheel.
(6) Lower vehicle and connect negative cable to
battery.
CRANKSHAFT OIL SEALÐREAR
REMOVAL
(1) Insert a 3/16 flat bladed pry tool between the
dust lip and the metal case of the crankshaft seal.
Angle the pry tool (Fig. 69) through the dust lip
against metal case of the seal. Pry out seal.
CAUTION: Do not permit the pry tool blade to con-
tact crankshaft seal surface. Contact of the pry toolblade against crankshaft edge (chamfer) is permit-
ted.
INSTALLATION
CAUTION: If burr or scratch is present on the
crankshaft edge (chamfer), cleanup with 400 grit
sand paper to prevent seal damage during installa-
tion of new seal.
(1) Place Special Tool 6926-1 magnetic pilot tool on
crankshaft (Fig. 70).
(2) Lightly coat seal O.D. with MopartStud N'
Bearing Mount Adhesive or equivalent.
(3) Place seal over Special Tool 6926-1 Pilot. Using
Special Tool 6926-2 Installer with C-4171 Handle,
drive seal into the retainer housing (Fig. 70).
REAR CRANKSHAFT SEAL RETAINER
When retainer removal is required, remove
retainer and clean engine block and retainer of old
gasket. Make sure surfaces are clean and free of oil.
Fig. 66 Front Crankshaft Oil SealÐRemoval
Fig. 67 Crankshaft Oil SealÐInstallation
Fig. 68 Crankshaft DamperÐInstallation
Fig. 69 Rear Crankshaft Oil SealÐRemoval
9 - 118 3.3/3.8L ENGINENS
REMOVAL AND INSTALLATION (Continued)

Install new gasket and tighten screws to 12 N´m (105
in. lbs.).
OIL FILTER
CAUTION: When servicing the oil filter (Fig. 71)
avoid deforming the filter can by installing the
remove/install tool band strap against the can-to-
base lock seam. The lock seam joining the can to
the base is reinforced by the base plate.
(1) Using Tool C-4065, turn filter counterclockwise
to remove from base. Properly discard filter.
(2) Wipe base clean, then inspect gasket contact
surface.
(3) Lubricate gasket of new filter with clean
engine oil.
(4) Install new filter until gasket contacts base.
Tighten filter 1 turn or 20 N´m (15 ft. lbs.). Use filter
wrench if necessary.
(5) Start engine and check for leaks.
ENGINE OIL GALLERY PLUGS
REMOVAL
Using a blunt tool such as a drift and a hammer,
strike the bottom edge of the cup plug. With the cup
plug rotated, grasp firmly with pliers or other suit-
able tool and remove plug (Fig. 72).CAUTION: Do not drive cup plug into the casting
as restricted cooling can result and cause serious
engine problems.
INSTALLATION
Thoroughly clean inside of cup plug hole in cylin-
der block or head. Be sure to remove old sealer.
Lightly coat inside of cup plug hole with Loctite Stud
N' Bearing Mount or equivalent. Make certain the
new plug is cleaned of all oil or grease. Using proper
drive plug, drive plug into hole so that the sharp
edge of the plug is at least 0.5 mm (0.020 in.) inside
the lead-in chamfer.
DISASSEMBLY AND ASSEMBLY
OIL PUMP
It is necessary to remove the oil pan, oil pickup
and chain case cover to service the oil pump rotors.
The oil pump pressure relief valve can be serviced by
removing the oil pan and oil pickup tube. Refer to
Timing Chain Cover Removal and Installation of this
section for procedures.
DISASSEMBLY
(1) To remove the relief valve, proceed as follows:
Fig. 70 Rear Crankshaft Oil SealÐInstallation
Fig. 71 Oil Filter
Fig. 72 Core Hole Plug Removal
NS3.3/3.8L ENGINE 9 - 119
REMOVAL AND INSTALLATION (Continued)

(2) Drill a 3.175 mm (1/8 inch) hole into the relief
valve retainer cap and insert a self-threading sheet
metal screw into cap.
(3) Clamp screw into a vise and while supporting
chain case cover, remove cap by tapping chain case
cover using a soft hammer. Discard retainer cap and
remove spring and relief valve (Fig. 73).
(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. 76).
OIL PUMP ASSEMBLY
(1) Assemble pump, using new parts as required.
Install the inner rotor with chamfer facing the
cast iron oil pump cover.
(2) Tighten cover screws to 12 N´m (105 in. lbs.).
(3) Prime oil pump before installation by filling
rotor cavity with engine oil.
(4) Install chain case cover. Refer to Timing Chain
Cover Installation of this section.
HYDRAULIC TAPPETS
DISASSEMBLY
(1) Pry out plunger retainer spring clip (Fig. 74).
(2) Clean varnish deposits from inside of tappet
body above plunger cap.
(3) Invert tappet body and remove plunger cap,
plunger, flat or ball check valve, check valve spring,
check valve retainer and plunger spring. Check valve
could be flat or ball.
ASSEMBLY
(1) Clean all tappet parts in a solvent that will
remove all varnish and carbon.
(2) Replace tappets that are unfit for further ser-
vice with new assemblies.(3) If plunger shows signs of scoring or wear, valve
is pitted, or valve seat on end of plunger indicates
any condition that would prevent valve from seating,
install a new tappet assembly.
(4) Assemble tappets (Fig. 74).
CLEANING AND INSPECTION
CYLINDER HEAD
(1) Before cleaning, check for leaks, damage and
cracks.
(2) Clean cylinder head and oil passages.
(3) Check cylinder head for flatness (Fig. 75).
(4) Inspect all surfaces with a straightedge if there
is any reason to suspect leakage. If out of flatness
exceeds 0.019 mm (0.00075 in.) times the span length
in inches, in any direction, either replace head or
lightly machine the head surface. As an example, if a
12 inch span is 0.1 mm (.004 in.) out of flat, allow-
able is 12 x .019 mm (.00075 in.) equals .22 mm (.009
in.) This amount of out of flat is acceptable. Maxi-
mum of 0.2 mm (.008 in.) for grinding is permitted.
CAUTION: This is a combined total dimension of
stock removal from cylinder head and block top
surface.
Fig. 73 Oil Pressure Relief Valve
Fig. 74 Hydraulic Roller Tappet Assembly
Fig. 75 Check Cylinder Head
9 - 120 3.3/3.8L ENGINENS
DISASSEMBLY AND ASSEMBLY (Continued)

OIL PAN
(1) Clean oil pan in solvent and wipe dry with a
clean cloth. Clean all gasket material from mounting
surfaces of pan and block.
(2) Inspect oil drain plug and plug hole for
stripped or damaged threads and repair as necessary.
Install a new drain plug gasket. Tighten to 27 N´m
(20 ft. lbs.).
(3) Inspect oil pan mounting flange for bends or
distortion. Straighten flange if necessary.
(4) Clean oil screen and pipe in clean solvent.
Inspect condition of screen.
OIL PUMP
INSPECTION AND REPAIR
(1) Clean all parts thoroughly. Mating surface of
the chain case cover should be smooth. Replace pump
cover if scratched or grooved.
(2) Lay a straightedge across the pump cover sur-
face (Fig. 77). If a 0.025 mm (0.001 in.) 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 in.)
or less (Fig. 78), or if the diameter is 79.95 mm
(3.148 inches.) or less, replace outer rotor.
(4) If inner rotor measures 7.64 mm (0.301 in.) or
less replace inner rotor (Fig. 79).
(5) Slide outer rotor into chain case cover, press to
one side with fingers and measure clearance between
rotor and chain case cover (Fig. 80). If measurement
is 0.39 mm (0.015 in.) or more, replace CCC only if
outer rotor is in specification.
(6) Install inner rotor into chain case cover. If
clearance between inner and outer rotors (Fig. 81) is
0.203 mm (0.008 in.) or more, replace both rotors.
(7) Place a straightedge across the face of the
chain case cover, between bolt holes. If a feeler gaugeof 0.10 mm (0.004 in.) or more can be inserted
between rotors and the straightedge, replace pump
assembly (Fig. 82).ONLYif rotors are in specs.
(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 49.5 mm (1.95 inches) it should test
between 19.5 and 20.5 pounds when compressed to
34 mm (1-11/32 inches). Replace spring that fails to
meet specifications (Fig. 73).
(10) If oil pressure is low and pump is within spec-
ifications, inspect for worn engine bearings or other
reasons for oil pressure loss.
ENGINE BLOCK AND BORE
CLEANING AND INSPECTION
(1) Clean cylinder block thoroughly and check all
core hole plugs for evidence of leaking.
Fig. 76 Oil Pump
Fig. 77 Checking Oil Pump Cover Flatness
Fig. 78 Measuring Outer Rotor Thickness
NS3.3/3.8L ENGINE 9 - 121
CLEANING AND INSPECTION (Continued)

(2) If new core plugs are installed, see Engine Core
Oil and Cam Plugs.
(3) Examine block for cracks or fractures.
CYLINDER BORE INSPECTION
The cylinder walls should be checked for out-of-
round and taper with Tool C-119 (Fig. 83). If the cyl-
inder walls are badly scuffed or scored, the cylinder
block should be replaced.
Measure the cylinder bore at three levels in direc-
tions A and B (Fig. 83). Top measurement should be
12 mm (0.50 in.) down and bottom measurement
should be 12 mm (0.50 in.) up from bottom of bore.
Refer to Cylinder Bore and Piston Specification
Chart.
Fig. 79 Measuring Inner Rotor Thickness
Fig. 80 Measuring Outer Rotor Clearance in
Housing
Fig. 81 Measuring Clearance Between Rotors
Fig. 82 Measuring Clearance Over Rotors
Fig. 83 Checking Cylinder Bore Size
9 - 122 3.3/3.8L ENGINENS
CLEANING AND INSPECTION (Continued)

ADJUSTMENTS
ENGINE MOUNTS
ENGINE MOUNT INSULATOR ADJUSTMENT
(1) Remove the load on the engine motor mounts
by carefully supporting the engine and transmission
assembly with a floor jack.
(2) Loosen the right engine mount insulator verti-
cal fastener and the fore and aft fasteners, and the
front engine mount bracket to front crossmember
screws.
(3) Pry the engine right or left as required to
achieve the proper drive shaft assembly length. Refer
to Group 2, Suspension and Driveshafts for drive-
shaft identification and related assembly length mea-
suring.
(4) Tighten engine mounts and fasteners in the
following order:
(a) Right engine mount insulator vertical bolts
to 102 N´m (75 ft. lbs.) and the fore and aft bolts to
150 N´m (110 ft. lbs.).
(b) Front engine mount screws to 54 N´m (40 ft.
lbs.) the clearance between the snubbers and the
engine should be 2 mm (0.078 inch.) each side.
(c) Left engine mount through bolt to 75 N´m (55
ft. lbs.).
(5) Recheck driveshaft length.
SPECIFICATIONS
3.3/3.8L ENGINE
Type.........................60É V-6 Engine
Bore±3.3L..................93.0 mm (3.66 in.)
Bore±3.8L.................96.0 mm (3.779 in.)
Stroke±3.3L...............81.0 mm (3.188 in.)
Stroke±3.8L...............87.0 mm (3.425 in.)
Compression Ratio±3.3L.................8.9:1
Compression Ratio±3.8L.................9.6:1
Displacement±3.3L..........3.3L (201 Cubic in.)
Displacement±3.8L..........3.8L (231 Cubic in.)
Brake Horsepower±3.3L........158 @ 4850 RPM
Brake Horsepower±3.8L........180 @ 4400 RPM
Torque±3.3L............203 lb. ft. @ 3600 RPM
Torque±3.8L............240 lb. ft. @ 3600 RPM
Firing Order....................1±2±3±4±5±6
Compression Pressure.Refer to Engine Performance
in Standard Service Procedures.
Cylinder Number (Front to Rear)
Front Bank...........................2,4,6
Rear Bank............................1,3,6
Cylinder Block
Cylinder Bore (Standard)±3.3L.........93.0 mm
(3.66 in.)
Cylinder Bore (Standard)±3.8L.........96.0 mm
(3.779 in.)
Out-of-Round (Max.)........0.076 mm (0.003 in.)
Taper (Max.)..............0.051 mm (0.002 in.)
Cylinder Bore Oversize (Max.).........0.508 mm
(0.020 in.)
Tappet Bore Diameter.....22.9896 - 23.0099 mm
(0.9051 - 0.9059 in.)
Pistons
Type Material.......Aluminum Alloy Tin Coated
Clearance at Size Location......0.025 - 0.057 mm
(0.001 - 0.0022 in.)
Weight (Standard Only)±3.3L......38165 grams
(13.439460.1764 oz.)
Weight (Standard Only)±3.8L......43865 grams
(15.450160.1764 oz.)
Pistons for Service..............Standard Only
Piston Pins
Type .......................Press Fit in Rod
(Serviced as an Assembly)
Diameter.........................22.88 mm
(0.9009 - 0.9007 in.)
Length±3.3L................67.25 - 67.75 mm
(2.648 - 2.667 in.)
Lenth±3.8L.................71.25 - 71.75 mm
(2.805 - 2.824 in.)
Clearance in Piston @ 70É......0.006 - 0.019 mm
(0.0002 - 0.0007 in.)
Clearance in Rod................(Interference)
CYLINDER BORE AND PISTON
SPECIFICATION CHART
EngineStandard
BoreMaximum
Out-Of-
RoundMaximum
Taper
3.3L 92.993 -
93.007 mm0.076 mm 0.51 mm
(3.661 -
3.6617 in.)(0.003 in.) (0.002 in.)
3.8L 95.993 -
96.007 mmSame Same
3.7792 -
3.780 in.
Standard Piston Size
3.3L 92.950 - 92.968 mm
(3.6594 - 3.6602 in.)
3.8L 95.950 - 95.968 mm
(3.7776 - 3.7783 in.)
Piston to Bore Clearance: 0.025 - 0.057 mm
(0.0009 - 0.0022 in.)
Measurements taken at Piston Size Location.
NS3.3/3.8L ENGINE 9 - 123
CLEANING AND INSPECTION (Continued)

Piston Rings
Number of Rings..........................3
Compression.............................2
Oil Control..............................1
Oil Ring Type . . .3±Piece, Steel Rail, Chrome Face
Piston Ring Gap
Top & 2nd Compression ing.......0.30 - 0.55 mm
(0.0118 - 0.0217 in.)
Oil Control (Steel Rails).........0.25 - 1.00 mm
(0.0098 - 0.0394 in.)
Service Rings
Ring Gap±Compression........0.300 - 0.550 mm
(0.0118 - 0.0217 in.)
Ring Gap±Oil Control..........0.250 - 1.00 mm
(0.0098 - 0.0394 in.)
Piston Ring Side Clearance
Top & 2nd Compression Rings . . .0.030 - 0.095 mm
(0.0012 - 0.0037 in.)
Oil Ring (Steel Rails)..........0.014 - 0.226 mm
(0.0005 - 0.0089 in.)
Piston Ring Width
Compression Rings.............1.46 - 1.50 mm
(0.0575 - 0.0591 in.)
Oil Ring (Steel Rails)................0.510 mm
(0.0201 in.)
Connecting Rods
Bearing Type.........Aluminum Lead (Bimetal)
Bearing Clearance............0.019 - 0.065 mm
(0.00075 - 0.0026 in.)
Max. Allowable..........0.076 mm (0.003 in.)
Side Clearance..............0.127 - 0.381 mm
(0.005 - 0.015 in.)
Crankshaft
Type......................Cast Nodular Iron
Bearing Type.........Aluminum Lead (Bimetal)
Thrust Location.................No. 2 Bearing
Connecting Rod
Journal Diameter..........53.950 - 53.975 mm
(2.124 - 2.125 in.)
Main Bearing Diametrical
Clearance No. 1- 4............0.011 - 0.059 mm
(0.0043 - 0.0023 in.)
Max. Allowable..........0.102 mm (0.004 in.)
End Play.....0.09 - 0.24 mm (0.0036 - 0.0095 in.)
Max. Allowable..........0.381 mm (0.015 in.)
Main Bearing Journals
Diameter.................64.013 - 63.993 mm
(2.5202 - 2.5195 in.)
Out-of-Round (Max.)........0.025 mm (0.001 in.)
Taper (Max.)..............0.025 mm (0.001 in.)
Connecting Rod Journals
Diameter.................58.005 - 57.979 mm
(2.2837 - 2.2827 in.)
Out-of-Round (Max.)........0.025 mm (0.001 in.)
Taper (Max.)..............0.025 mm (0.001 in.)Camshaft
Drive...............................Chain
Bearings.................Steel Backed Babbitt
Number.................................4
Diametrical Clearance.........0.025 - 0.101 mm
(0.001 - 0.004 in.)
Max. Allowable..........0.127 mm (0.005 in.)
Thrust Taken By.................Thrust Plate
End Play...................0.127 - 0.304 mm
(0.005 - 0.012 in.)
Max. Allowable..........0.304 mm (0.012 in.)
Camshaft Journals
Bearing Journal
Diameter No. 1............50.724 - 50.775 mm
(1.997 - 1.999 in.)
Bearing Journal
Diameter No. 2............50.317 - 50.368 mm
(1.9809 - 1.9829 in.)
Bearing Journal
Diameter No. 3............49.936 - 49.987 mm
(1.9659 - 1.9679 in.)
Bearing Journal
Diameter No. 4............49.530 - 49.581 mm
(1.9499 - 1.9520 in.)
Camshaft Bearings
Diameter No. 1.............50.825 - 50.800 mm
(2.0009 - 1.9999 in.)
Diameter No. 2.............50.419 - 50.393 mm
(1.9849 - 1.9839 in.)
Diameter No. 3.............50.038 - 50.013 mm
(1.9699 - 1.9690 in.)
Diameter No. 4.............49.632 - 49.606 mm
(1.954 - 1.9529 in.)
Oil Clearance..............0.0254 - 0.0762 mm
(0.001 - 0.003 in.)
Valve Timing Exhaust Valve
Closes (ATC)...........................12É
Opens (BBC)...........................48É
Duration.............................240É
Valve Timing Intake Valve
Closes (BTDC)..........................58É
Opens.................................2É
Duration.............................240É
Valve Overlap..........................14É
Timing Chain
Number of Links.........................64
Pitch............................0.375 inch
Width...........................0.750 inch
Hydraulic Tappets
Type .......................Roller Hydraulic
Body Diameter...............22.95 - 22.96 mm
(0.9035 - 0.9040 in.)
Clearance in Block..............0.02 - 0.06 mm
(0.0007 - 0.0024 in.)
9 - 124 3.3/3.8L ENGINENS
SPECIFICATIONS (Continued)

ENGINE
CONTENTS
page page
2.0L SOHC ENGINE...................... 12.5L VM DIESEL....................... 40
2.0L SOHC ENGINE
INDEX
page page
DESCRIPTION AND OPERATION
ENGINE COMPONENTS.................. 3
ENGINE IDENTIFICATION................. 1
ENGINE LUBRICATION SYSTEM............ 2
GENERAL SPECIFICATION................ 2
DIAGNOSIS AND TESTING
CHECKING ENGINE OIL PRESSURE........ 3
SERVICE PROCEDURES
CRANKSHAFT END PLAY................. 6
CYLINDER BORE AND PISTON SIZING....... 4
FITTING CONNECTING RODS.............. 5
FITTING CRANKSHAFT BEARINGS.......... 6
FITTING PISTON RINGS.................. 4
REMOVAL AND INSTALLATION
CAMSHAFT OIL SEAL................... 12
CAMSHAFT............................ 7
CRANKSHAFT OIL SEALÐREAR........... 20
CRANKSHAFT......................... 21
CYLINDER HEAD COVER................. 6
CYLINDER HEAD....................... 10
FRONT CRANKSHAFT OIL SEAL........... 18
OILFILTER ........................... 24
OIL FILTER ADAPTER................... 24OILPAN .............................. 17
OIL PUMP............................ 25
PISTON AND CONNECTING ROD.......... 25
ROCKER ARM/HYDRAULIC LASH ADJUSTER . . 8
SPARK PLUG TUBE...................... 7
TIMING BELT COVER................... 11
TIMING BELT SYSTEM.................. 13
VALVE SEALS AND SPRINGS IN VEHICLE . . . 10
VIBRATION DAMPER.................... 28
DISASSEMBLY AND ASSEMBLY
OIL PUMP............................ 29
VALVE SERVICE WITH THE CYLINDER HEAD
REMOVED.......................... 29
CLEANING AND INSPECTION
CYLINDER BLOCK AND BORE............ 34
CYLINDER HEAD AND CAMSHAFT
JOURNALS.......................... 32
OIL PUMP............................ 32
SPECIFICATIONS
ENGINE 2.0L SOHC..................... 34
TORQUE CHART 2.0L SOHC.............. 36
SPECIAL TOOLS
ENGINE 2.0L SOHC..................... 36
DESCRIPTION AND OPERATION
ENGINE IDENTIFICATION
The engine identification number is located on the
left rear of the cylinder block behind starter (Fig. 1).
Fig. 1 Engine Identification SOHC
NS/GSENGINE 9 - 1

GENERAL SPECIFICATION
Type .............In-Line OHV, DOHC & SOHC
Bore.....................87.5mm (3.445 Inch)
Stroke...................83.0mm (3.268 inch)
Compression Ratio....DOHC - 9.6:1 SOHC - 9.8:1
Displacement.........2.0Liters (122 Cubic Inch)
Firing Order........................1,3,4,2
Compression Pressure...........1172-1551 kPa
(170 - 225 psi)
Maximum Variation Between Cylinders......25%
Lubrication . . . Pressure Feed - Full Flow Filtration
(Crankshaft Driven Pump)
Engine Oil Capacity . . Refer to Group 0, Lubrication
and Maintenance
ENGINE LUBRICATION SYSTEM
ENGINE LUBRICATION
Refer to Group 0, Lubrication and Maintenance for
recommended oil to be used in various engine appli-
cation. System is full flow filtration, pressure feed
type. The oil pump is mounted in the front engine
cover and driven by the crankshaft. Pressurized oil is
then routed through the main oil gallery, running the
length of the cylinder block, supplying main and rodbearings with further routing. Rod bearing oil throw-
off lubricates the pistons from directed slots on the
side of the connecting rod assemblies. Camshaft and
valve mechanisms are lubricated from a full-length
cylinder head oil gallery supplied from the crankcase
main oil gallery.
PRESSURE LUBRICATION
Oil drawn up through the pickup tube is pressur-
ized by the pump and routed through the full flow fil-
ter to the main oil gallery running the length of the
cylinder block. A cylinder head restrictor, located in
the block, provides increased oil flow to the main oil
gallery (Fig. 2).
MAIN/ROD BEARINGS
A diagonal hole in each bulkhead feeds oil to each
main bearing. Drilled passages within the crankshaft
route oil from main bearing journals to connecting
rod journals.
CAMSHAFT/HYDRAULIC LASH ADJUSTERS
A vertical hole at the number five bulkhead routes
pressurized oil through a restrictor up into the cylin-
der head. The rocker shafts route oil to the rocker
arms/hydraulic lash adjuster assemblies.
Engine Lubrication Components
9 - 2 ENGINENS/GS
DESCRIPTION AND OPERATION (Continued)