DESCRIPTION SPECIFICATION
Valve Stem Tip
Height—Intake
42.366–43.655 mm
(1.6680–1.7187 in.)
Valve Stem Tip
Height—Exhaust
44.705–45.986 mm
(1.760–1.8105 in.)
Valve Springs
Free Length—Intake
(Approx.)
43.675 mm
(1.7195 in.)
Free Length—Exhaust
(Approx.)
44.319 mm
(1.7448 in.)
Spring Force—Intake
(Valve Closed)
309–358 N @ 38.0 mm
(69.5–80.5 lbs. @ 1.4961
in.)
Spring Force—Exhaust
(Valve Closed)
314–354 N @ 38.0 mm
(71–79 lbs. @ 1.4961 in.)
Spring Force—Intake
(Valve Open)
836–907 N @ 29.85 mm
(188–204 lbs. @ 1.1594
in.)
Spring Force—Exhaust
(Valve Open)
579–640 N @ 31.47 mm
(130–144 lbs. @ 1.239
in.)
Number of Coils—Intake 6.86
Number of Coils—
Exhaust
7.66
Color of Spring (Top of
Coils)
—Intake (Right Hand Coil
Direction)
Orange
—Exhaust (Left Hand
Coil Direction)
Yellow
Wire Diameter—Intake 4.29–4.34 mm
(0.1689–0.1709 in.)
DESCRIPTION SPECIFICATION
Wire Diameter—Exhaust 4.16–4.22 mm
(0.1638–0.1661 in.)
Spring Installed Height
(Spring Seat to Bottom of
Retainer)—Intake &
Exhaust
38.0 mm
(1.4961 in.)
Oil Pump
Clearance Over Rotors 0.077 mm
(0.003 in.)
Cover Out-of-Flat (Max.) 0.025 mm
(0.001 in.)
Inner & Outer Rotor
Thickness (MIn.)
14.299 mm
(0.563 in.)
Outer Rotor Thickness
(Max.)
0.39 mm
(0.015 in.)
Outer Rotor Diameter
(Min.)
79.997 mm
(3.149 in.)
Tip Clearance Between
Rotors (Max.)
0.20 mm
(0.008 in.)
Oil Pressure
(NOTE: At Normal Operating Temperatures)
Pressure @ Curb Idle
Speed*
34.47 kPa Min.
(5 psi) Min.
Pressure @ 3000 RPM 300–724 kPa
(45–105 psi)
*CAUTION: If pressure is zero at curb idle, DO NOT
run engine at 3000 RPM.
9 - 104 ENGINE 3.5L LH
ENGINE 3.5L (Continued)