Dodge Dakota (ND). Manual — part 843
DESCRIPTION
SPECIFICATION
Weight
383.5 grams (13.52 oz)
Ring Groove Diameter
No. 1
83.37 - 83.13 mm
(3.296 - 3.269 in.)
No. 2
82.833 - 83.033 mm
(3.261 - 3.310 in.)
No. 3
83.88 - 84.08 mm
(3.302 - 3.310 in.)
PISTON PINS
Type
Full Floating
Clearance In Piston
0.010 - 0.019 mm
(0.0004 - 0.0008 in.)
Clearance in Rod
0.015 - 0.028 mm
(0.0006 - 0.0011 in.)
Diameter
24.017 - 24.020 mm
(0.9456 - 0.9457 in.)
PISTON RINGS
Ring Gap
Top Compression Ring
0.20 - 0.36 mm
(0.0079 - 0.0142 in.)
Second Compression Ring
0.37 - 0.63 mm
(0.0146 - 0.0249 in.)
Oil Control (Steel Rails)
0.25 - 0.76 mm
(0.0099 - 0.30 in.)
Side Clearance
Top Compression Ring
.051 - .094 mm
(0.0020 - 0.0037 in.)
Second Compression Ring
0.040 - 0.080 mm
(0.0016 - 0.0031 in.)
Oil Ring (Steel Ring)
.019 - .229 mm
(.0007 - .0091 in.)
Ring Width
Top Compression Ring
1.472 - 1.490 mm
(0.057 - 0.058 in.)
Second Compression Ring
1.472 - 1.490 mm
(0.057 - 0.058 in.)
Oil Ring (Steel Rails)
0.445 - 0.470 mm
(0.017 - 0.018 in.)
9 - 910
ENGINE - 4.7L SERVICE INFORMATION
ND
DESCRIPTION
SPECIFICATION
CONNECTING RODS
Bearing Clearance
0.015 - 0.055 mm
(0.0006 - 0.0022 in.)
Side Clearance
0.10 - 0.35 mm
(0.004 - 0.0138 in.)
Piston Pin Bore Diameter
24.045 - 24.035 mm
(0.94665 - 0.94626 in.)
Bearing Bore Out of Round
0.004 mm
(MAX)
(0.0002 in.)
Total Weight (Less Bearing)
555 grams (19.5771 ounces)
CRANKSHAFT
Main BearingJournal
Diameter
63.488 - 63.512 mm
(2.4996 - 2.5005 in.)
Bearing Clearance
0.018 - 0.052 mm
(0.0008 - 0.0021 in.)
Out of Round (MAX)
0.005 mm (0.0002 in.)
Taper (MAX)
0.008 mm (0.0004 in.)
End Play
0.052 - 0.282 mm
(0.0021 - 0.0112 in.)
End Play (MAX)
0.282 mm (0.0112 in)
Connecting Rod Journal
Diameter
50.992 - 51.008 mm
(2.0076 - 2.0082 in.)
Bearing Clearance
0.015 - 0.055 mm
(0.0006 -0.0022 in.)
Out of Round (MAX)
0.005 mm (0.0002 in.)
Taper (MAX)
0.008 mm (0.0004 in.)
CAMSHAFT
Bore Diameter
26.02 - 26.04 mm
(1.0245 - 1.0252 in.)
Bearing Journal Diameter
25.975 - 25.995 mm
(1.0227 - 1.0235 in.)
Bearing Clearance
0.025 - 0.065 mm
(0.001 - 0.0026 in.)
Bearing Clearance (MAX)
0.065 mm (0.0026 in.)
ND
ENGINE - 4.7L SERVICE INFORMATION
9 - 911
DESCRIPTION
SPECIFICATION
End Play
.075 - .200 mm
(0.003 - 0.0079 in.)
End Play (MAX)
.200 mm (0.0079 in.)
VALVE TIMING
Intake
Opens (BTDC)
3.0°
Closes (ATDC)
233.0°
Duration
236.0°
Exhaust
Opens (BTDC)
235.0°
Closes (ATDC)
15.0°
Duration
250.0°
Valve Overlap
18.0°
VALVES
Face Angle
45° - 45.5°
Head Diameter
Intake
48.52 - 48.78 mm
(1.9103 - 1.9205 in.)
Exhaust
36.87 - 37.13 mm
1.4516 - 1.4618 in.)
Length (Overall)
Intake
113.45 - 114.21 mm
(4.4666 - 4.4965)
Exhaust
114.92 - 115.68 mm
(4.5244 - 4.5543 in.)
Stem Diameter
Intake
6.931 - 6.957 mm
(0.2729 - 0.2739 in.)
Exhaust
6.902 - 6.928 mm
(0.2717 - 0.2728 in.)
Stem - to - Guide Clearance
Intake
.018 - .069 mm
(0.0008 - 0.0028 in.)
Exhaust
.047 - .098 mm
(0.0019 - 0.0039 in.)
9 - 912
ENGINE - 4.7L SERVICE INFORMATION
ND
DESCRIPTION
SPECIFICATION
Max. Allowable Stem - to -
Guide Clearance (Rocking
Method)
Intake
0.069 mm (0.0028 in.)
Exhaust
0.098 mm (0.0039 in.)
Valve Lift (Zero Lash)
Intake
12.00 mm (0.4724 in.)
Exhaust
10.90 mm (0.4292 in.)
VALVE SPRING
Free Length (Approx)
Intake and Exhaust
48.92 mm (1.9259 in.)
Spring Force (Valve Closed)
Intake
361.0 - 390.0 N @40.12 mm
(81.1560 - 87.6755 lbs. @1.5795 in.)
Exhaust
390.0 - 430.0 N @40.12 mm
(87.6755 - 96.6678 lbs. @ 1.5795 in.)
Spring Force (Valve Open)
Intake
984.0 - 1040.0 N @ 28.12 mm
(221.212 - 233.801 lbs. @ 1.107 in.)
Exhaust
965.0 - 1055 N@ 29.12 mm
(216.940 - 237.173 lbs. @ 1.146 in.)
Number of Coils
Intake
7.30
Exhaust
7.45
Wire Diameter
Intake and Exhaust
4.77 +/- 0.03 mm x 3.80+/- .03mm
Installed Height (Spring
Seat to Bottom of Retainer)
Nominal
Intake
40.12 mm (1.579 in.)
Exhaust
40.12 mm (1.579 in.)
CYLINDER HEAD
Gasket Thickness
(Compressed)
.7 mm (0.0276 in.)
Valve Seat Angle
44.5° - 45.0°
Valve Seat Runout (MAX)
0.051 mm (0.002 in.)
Valve Seat Width
Intake
1.75 - 2.36 mm
(0.0698 - 0.0928 in.)
Exhaust
1.71 - 2.32 mm
ND
ENGINE - 4.7L SERVICE INFORMATION
9 - 913
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