Dodge Dakota Sport 2001 Service Manual page 1108

AN
ENGINE 3.9L (Continued)
DESCRIPTION
Outer Rotor Clearance
(Max)
Outer Rotor Diameter
(Min)
Outer Rotor Thickness
(Min)
Tip Clearance Between
Rotors
(Max)
PISTONS
Clearance at Top of Skirt
Land Clearance
(Diameter)
Piston Length
Ring Groove Depth
#1 & 2
Weight
PISTON PINS
Clearance in Piston
Clearance in Rod
(Interference)
SPECIFICATION
0.3556 mm
(0.014 in.)
62.7126 mm
(2.469 in.)
20.955 mm
(0.825 in.)
0.2032 mm
(0.008 in.)
0.0127 - 0.0381 mm
(0.0005 - 0.0015 in.)
0.635 - 1.016 mm
(0.025 - 0.040 in.)
86.360 mm
(3.40 in.)
4.572 - 4.826 mm
(0.180 - 0.190 in.)
#3 3.810 - 4.064 mm
(0.150 - 0.160 in.)
592.6 - 596.6 grams
(20.90 - 21.04 oz.)
0.0064 - 0.0191 mm
(0.00025 - 0.00075 in.)
0.0178 - 0.0356 mm
(0.0007 - 0.0014 in.)
DESCRIPTION
Diameter
End Play
Length
PISTON RINGS
Ring Gap
Compression Rings
Oil Control (Steel Rails)
Ring Side Clearance
Compression Rings
Oil Control (Steel Rails)
Ring Width
Compression Rings
Oil Control (Steel Rails)
VALVE TIMING
Exhaust Valve
Closes
Opens
Duration
Intake Valve
Closes
Opens
Duration
Valve Overlap
ENGINE 3.9L 9 - 79
SPECIFICATION
24.996 - 25.001 mm
(0.9841 - 0.9843 in.)
None
75.946 - 76.454 mm
(2.990 - 3.010 in.)
0.254 - 0.508 mm
(0.010 - 0.020 in.)
0.254 - 1.270 mm
(0.010 - 0.050 in.)
0.038 - 0.076 mm
(0.0015 - 0.0030 in.)
0.06 - 0.21 mm
(0.002 - 0.008 in.)
1.971 - 1.989 mm
(0.0776 - 0.0783 in.)
3.848 - 3.975 mm
(0.1515 - 0.1565 in.)
16° (ATDC)
52° (BBDC)
248°
50° (ABDC)
10° (BTDC)
240°
26°