2001 DODGE RAM Service Repair Manual

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Page 1161 of 2889

DODGE RAM 2001 Service Repair Manual SPECIFICATIONS
3.9L ENGINE
GENERAL DESCRIPTION
DESCRIPTION SPECIFICATION
Engine Type 90É V-6 OHV
Bore and Stroke 99.3 x 84.0 mm
(3.91 x 3.31 in.)
Displacement 3.9L (238 c.i.)
Compression Ratio 9.1:1

Page 1162 of 2889

DODGE RAM 2001 Service Repair Manual DESCRIPTION SPECIFICATION
Main Journal Beraing
Clearance
No. 1 0.013 - 0.038 mm
(0.0005 - 0.0015 in.)
No.2-40.013 - 0.051 mm
(0.0005 - 0.0020 in.)
Service Limit 0.064 mm
(0.0025 in.)
End Play 0.051 -

Page 1163 of 2889

DODGE RAM 2001 Service Repair Manual DESCRIPTION SPECIFICATION
Number of Coils 6.8
Installed Height 41.66 mm
(1.64 in.)
Wire Diameter 4.50 mm
(0.177 in.)
HYDRAULIC TAPPETS
Body Diameter 22.949 - 22.962 mm
(0.9035 - 0.9040 in.)
Clearance

Page 1164 of 2889

DODGE RAM 2001 Service Repair Manual DESCRIPTION SPECIFICATION
End Play None
Length 75.946 - 76.454 mm
(2.990 - 3.010 in.)
PISTON RINGS
Ring Gap
Compression Rings 0.254 - 0.508 mm
(0.010 - 0.020 in.)
Oil Control (Steel Rails) 0.254 - 1.2

Page 1165 of 2889

DODGE RAM 2001 Service Repair Manual TORQUE
TORQUE CHART 3.9L ENGINE
DESCRIPTION N´m In. Ft.
Lbs. Lbs.
Camshaft SprocketÐBolt 68 Ð 50
Camshaft Thrust
PlateÐBolts24 210 Ð
Timing Chain Case
CoverÐ41 Ð 30
Bolts
Connecting Rod
CapÐBo

Page 1166 of 2889

DODGE RAM 2001 Service Repair Manual SPECIAL TOOLS
ENGINEÐ3.9L
Oil Pressure Gauge C-3292
Engine Support Fixture C-3487±A
Valve Spring Compressor MD-998772±A
Adapter 6633
Adapter 6716A
Valve Guide Sleeve C-3973
Dial Indicator C-3339
Pu

Page 1167 of 2889

DODGE RAM 2001 Service Repair Manual Distributor Bushing Puller C-3052
Distributor Bushing Driver/Burnisher C-3053
Piston Ring Compressor C-385
Crankshaft Main Bearing Remover C-3059
Cylinder Bore Gauge C-119
Pressure Tester Kit 7700
Blo

Page 1168 of 2889

DODGE RAM 2001 Service Repair Manual AIR CLEANER ELEMENT
REMOVAL - 3.9L/5.2L/5.9L
For air cleaner element required maintenance
schedules (listed in time or mileage intervals), refer
to 0, Lubrication and Maintenance.
CAUTION: Do not atte

AIR CLEANER ELEMENT
REMOVAL - 3.9L/5.2L/5.9L
For air cleaner element required maintenance
schedules (listed in time or mileage intervals), refer
to 0, Lubrication and Maintenance.
CAUTION: Do not attempt to remove air cleaner ele-
ment (filter) from housing by removing top cover
only. To prevent damage to air cleaner housing, the
entire air cleaner housing assembly must be
removed from engine for air cleaner element
replacement.
(1) Remove air inlet tube (Fig. 4) at side of air
cleaner housing.(2) A band-type screw clamp secures the air
cleaner housing to throttle body. Loosen, but do not
remove, this screw clamp (Fig. 4). Note clamp posi-
tioning tabs on air cleaner housing.
(3) All Engines: Disconnect breather hose at rear
of air cleaner housing.
(4) 5.9L V-8 HDC Engine Only: Disconnect air
pump hose at air cleaner housing.
(5) The bottom/front of air cleaner housing is
equipped with a rubber grommet (Fig. 4). A mounting
stud is attached to intake manifold (Fig. 4) and is
used to position air cleaner housing into this grom-
met. Lift assembly from throttle body while slipping
assembly from mounting stud (Fig. 4).
(6) Check condition of gasket at throttle body and
replace as necessary.
(7) The housing cover is equipped with three (3)
spring clips (Fig. 4) and is hinged at rear with plastic
tabs. Unlatch clips from top of air cleaner housing
and tilt housing cover up and rearward for cover
removal.
(8) Remove air cleaner element from air cleaner
housing.
(9) Before installing new air cleaner element, clean
inside of air cleaner housing.
INSTALLATION - 3.9L/5.2L/5.9L
For air cleaner element required maintenance
schedules (listed in time or mileage intervals), refer
to Group 0, Lubrication and Maintenance.
(1) Position air cleaner cover to tabs on rear of air
cleaner housing. Latch three spring clips to seal
cover to housing.
(2) Position air cleaner housing assembly to throt-
tle body while guiding rubber grommet over mount-
ing stud. The lower part of screw clamp should be
below top lip of throttle body.
(3) Push down on air cleaner housing at rubber
grommet to seat housing at intake manifold.
(4) Tighten throttle body-to-air cleaner housing
clamp to 4 N´m (35 in. lbs.) torque.
(5) Install air inlet tube at air cleaner housing
inlet.
(6) Install breather hose.
(7) Install secondary air hose (if equipped).
Fig. 4 Air Cleaner HousingÐ3.9L/5.2L/5.9L Engines
1 - AIR INLET TUBE
2 - HOUSING TOP COVER
3 - CLAMP
4 - AIR FILTER ELEMENT
5 - MOUNTING STUD
6 - RUBBER GROMMET
7 - SPRING CLIPS
BR/BEENGINE 3.9L 9 - 21

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