Dodge Dakota Sport 2001 Service Manual page 1107

9 - 78 ENGINE 3.9L
ENGINE 3.9L (Continued)
DESCRIPTION
Valve Seat Width (Finish)
Intake
Exhaust
Valve Face Angle
Valve Head Diameter
Intake
Exhaust
Valve Length (Overall)
Intake
Exhaust
Valve Lift (@ Zero Lash)
Valve Stem Diameter
Valve Guide Bore
Diameter
Valve Stem to Guide
Clearance
Valve Stem to Guide
Clearance
Service Limit (Rocking
Method)
VALVE SPRINGS
Free Length
Spring Tension
Valve Closed
Valve Open
SPECIFICATION
1.016 - 1.542 mm
(0.040 - 0.060 in.)
1.524 - 2.032 mm
(0.040 - 0.060 in.)
43.25° - 43.75°
48.666 mm
(1.916 in.)
41.250 mm
(1.624 in.)
124.28 - 125.92 mm
(4.893 - 4.918 in.)
124.64 - 125.27 mm
(4.907 - 4.932 in.)
10.973 mm
(0.432 in.)
7.899 - 7.925 mm
(0.311 - 0.312 in.)
7.950 - 7.976 mm
(0.313 - 0.314 in.)
0.0254 - 0.0762 mm
(0.001 - 0.003 in.)
0.4318 mm
(0.017 in.)
49.962 mm
(1.967 in.)
378 N @ 41.66 mm
(85 lbs. @ 1.64 in.)
890 N @ 30.89 mm
(200 lbs. @ 1.212 in.)
DESCRIPTION
Number of Coils
Installed Height
Wire Diameter
HYDRAULIC TAPPETS
Body Diameter
Clearance in Block
Dry Lash
Push Rod Length
OIL PRESSURE
@ Curb Idle (Min.)*
@ 3000 rpm
Bypass Valve Setting
Switch Actuating
Pressure
* If oil pressure is zero at curb idle, DO NOT RUN
ENGINE.
OIL PUMP
Clearance Over Rotors
(Max)
Cover Out of Flat
(Max)
Inner Rotor Thickness
(Min)
AN
SPECIFICATION
6.8
41.66 mm
(1.64 in.)
4.50 mm
(0.177 in.)
22.949 - 22.962 mm
(0.9035 - 0.9040 in.)
0.0279 - 0.0610 mm
(0.0011 - 0.210 in.)
1.524 - 5.334 mm
(0.060 - 0.210 in.)
175.64 - 176.15 mm
(6.915 - 6.935 in.)
41.4 kPa
(6 psi)
207 - 552 kPa
(30 - 80 psi)
62 - 103 kPa
(9 - 15 psi)
34.5 - 48.3 kPa
(5 - 7 psi)
0.1016 mm
(0.004 in.)
0.0381 mm
(0.0015 in.)
20.955 mm
(0.825 in.)