Dodge 2000 DURANGO - Page 697

DESCRIPTION SPECIFICATION
Valves
Face Angle 43.25° – 43.75°
Head Diameter – Intake 47.752 mm (1.88 in.)
Head Diameter –
Exhaust
41.072 (1.617 in.)
Length (Overall) – Intake 126.21 – 126.85 mm
(4.969 – 4.994 in.)
Length (Overall) –
Exhaust
126.44 – 127.30 mm
(4.978 – 5.012 in.)
Lift (@ zero lash) –
Intake
10.414 mm (0.410 in.)
Lift (@ zero lash) –
Exhaust
10.592 mm (0.417 in.)
Stem Diameter – Intake 9.449 – 9.474 mm
(0.372 – 0.373 in.)
Stem Diameter – Exhaust 9.423 – 9.449 mm
(0.371 – 0.372 in.)
Guide Bore 9.500 – 9.525 mm
(0.374 – 0.375 in.)
Stem to Guide
Clearance—
Intake 0.0254 – 0.0762 mm
(0.001 – 0..003 in.)
Stem to Guide
Clearance—
Exhaust 0.0508 – 0.1016 mm
(0.002 – 0.004 in.)
Service Limit 0.4318 (0.017 in.)
Valve Springs
Free Length 49.962 mm (1.967 in.)
Spring Tension – (valve
closed)
378 N @ 41.66 mm
(85 lbs. @ 1.64 in.)
Spring Tension – (valve
open)
890 N @ 30.89 mm
(200 lbs. @ 1.212 in.)
Number of Coils 6.8
Installed Height 41.66 mm (1.64 in.)
DESCRIPTION SPECIFICATION
HYDRAULIC TAPPETS
Body Diameter 22.949 – 22.962 mm
(0.9035 – 0.9040 in.)
Clearance (to bore) 0.0279 – 0.0610 mm
(0.0011 – 0.0024 in.)
Dry Lash 1.524 – 5.334 mm
(0.060 – 0.210 in.)
Push Rod Length 175.64 – 176.15 mm
(6.915 – 6.935 in.)
OIL PRESSURE
Curb Idle (Min.*) 41.4 kPa (6 psi)
3000 rpm 207 – 552 kPa (30 – 80
psi)
Oil Pressure Bypass
Valve—
Setting 62 – 103 kPa (9 – 15 psi)
Switch Actuating
Pressure
34.5 – 48.3 kPa (5 – 7
psi)
* If oil pressure is zero at curb idle, DO NOT RUN
ENGINE.
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.)
Outer Rotor Diameter
(Min.)
62.7126 mm (2.469 in.)
Outer Rotor Thickness
(Min.)
20.955 mm (0.825 in.)
Tip Clearance between
Rotors—
(Max.) 0.2032 mm (0.008 in.)
DN 5.9L ENGINE 9 - 187
SPECIFICATIONS (Continued)