Dodge ram truck 3500 1996 Service Manual page 1043

BR — _ _ _ _ _
SPECIFICATIONS (Continued)
Oil
Pump
Clearance Over Rotors (Max.) . . . . . 0.1016 mm
(0.004 in)
Cover Out-of-Flat (Max.) . . . . . . . . . 0.0381 mm
(0.0015 in)
Inner Rotor Thickness (Min.) . . . . . . . 20.955 mm
(0.825 in)
Outer Rotor
Clearance (Max.) 0.3556 mm
(0.014 in)
Diameter (Min.) 62.7126 mm
(2.469 in)
Thickness (Min.) . . . . . . . . . . . . . . 20.955 mm
(0.825 in)
Tip Clearance Between Rotors (Max). . 0.2032 mm
(0.008 in)
Oil Pressure
At Curb Idle Speed (Minimum)*. . 41.4 kPa
(6 psi)
. At 3000 rpm 207-552 kPa
(30-80 psi)
Oil Pressure Switch
Actuating Pressure (Min.) . . . . . . . 34.5-48.3 kPa
(5-7 psi)
* C A U T I O N : If pressure is ZERO at curb idle,
DO NOT run engine at 3,000 rpm.
Oil Filter
Bypass Valve Setting . . . . 62-103 kPa
(9-15 psi)
Pistons
Clearance at Top of Skirt 0.0127-0.0381 mm
(0.0005-0.0015 in)
Land Clearance (Diametrical) . . . . . 0.635-1.016 mm
(0.025-0.040 in)
Piston Length 86.360 mm
(3.40 in)
Piston Ring Groove Depth
Nos. 1 and 2 4.572-4.826 mm
(0.180-0.190 in)
No. 3 3.810-4.064 mm
(0.150-0.160 in)
Weight 592.6-596.6 grams
(20.90-21.04 oz)
3.9L ENGINE 9 - 53
Piston Pins
Clearance
In Piston 0.00635-0.01905 mm
(0.00025-0.00075 in)
In Rod (Interference) 0.0178-0.0356 mm
(0.0007-0.0014 in)
Diameter . 24.996-25.001 mm
(0.9841-0.9843 in)
End Play . N O N E
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) 0.254-1.270 mm
(0.010-0.050 in)
Ring Side Clearance
Compression Rings 0.038-0.076 mm
(0.0015-0.0030 in)
Oil Ring (Steel Rails) 0.06-0.21 mm
(0.002-0.008 in)
Ring Width
Compression Rings 1.971-1.989 mm
(0.0776-0.0783 in)
Oil Ring (Steel Rails) 3.848-3.975 mm
(0.1515-0.1565 in)
Valves
Face Angle 43.25°-43.75°
Head Diameter
Intake 48.666 mm
(1.916 in)
Exhaust 41.250 mm
(1.624 in)
Length (Overall)
Intake . 124.28-125.92 mm
(4.893-4.918 in)
Exhaust 124.64-125.27 mm
(4.907-4.932 in)
Lift (Zero Lash) 10.973 mm
(0.432 in)
Stem Diameter 7.899-7.925 mm
(0.311-0.312 in)
Stem-to-Guide Clearance . 0.0254-0.0762 mm
(0.001-0.003 in)
Max. Allowable (Rocking Method). . 0.4318 mm
(0.017 in)
Guide Bore Diameter (Std) . . . . . . . 7.950-7.976 mm
(0.313-0.314 in)
ENGINE SPECIFICATIONS—CONT.
19509-67