Eight-Cylinder Engine Specifications - Jeep 1979 CJ-5 Technical & Service Manual

1B-7Q ENGINES
(b) Turn oil pump shaft with long screw driver
to allow distributor shaft to engage oil pump.
(c) With rotor pointing to No. 1 spark plug wire
position, rotate housing counterclockwise until leading
edge of trigger wheel segment is aligned with center of
sensor. Tighten distributor clamp.
(d) When engine is installed and running, check
ignition timing as outlined in Chapter 1A—General
Service and Diagnosis.
(23) Remove engine from stand.
(24) Install engine assembly as outlined in Engine
Installation.
. SPECIFICATIONS
Eight-Cylinder Engine Specifications
(USA)
Inches
Unless
Otherwise
Specified
(METRIC)
Millimeters
Unless
Otherwise'
Specified
Bore
304 3.75 95.25 '
360 4.08 103.63
Stroke
304 3.44 87.38
360 3.44 87.38
Displacement
304 . 304 cu.in. 5 liter
360 . 360 cu.in. 6 liter
Compression Ratio
304 8.40:1
360 8.25:1
Compression Pressure
304 140 psi (min) 965 kPa (min)
360 . 140 psi (min) 965 kPa (min)
Maximum Variation Between
Cylinders 20 psi 138 kPa (min)
Taxable Horsepower
304 . 45.00 33.56 kW
360 53.27 39.72 kW
Fuel unleaded
Camshaft
Fuel Pump Eccentric Diameter 2.182-2.192 - 55.423-55.677
Tappet Clearance Zero lash (hydraulic tappets)
End Play Zero (engine operating)
Bearing Clearance 0.001-0.003 0.0254-0.0762
(0.0017-0.0020 (0.0432-0.0508
preferred) preferred)
Bearing Journal Diameter
No. 1 2.1195-2.1205 53.835-53.861
No. 2 . . . . . . . . . . . . . . . . 2.0895-2.0905 53.073-53.099
No. 3 2.0595-2.0605 52.311-52.337
No. 4 2.0295-2.0305 51.549-51.575
No. 5 . . 1.9995-2.0005 50.787-50.813
Maximum Base Circle Runout . . . . . 0.001 0.0254
Cam Lobe Lift
304/360 0.266 6.7564
Intake Valve Timing
Opens 304/360 14.75° BTDC
Closes 304/360. 6 8 . 7 5 ° BTDC
Exhaust Valve Timing
Opens 304/360 5 6 . 7 5 ° BBDC
Closes 304/360 26.75° A T D C
Valve Overlap
304/360 4 1 . 5 0 °
Intake Duration
304/360 . 2 6 3 . 5 0 °
Exhaust Duration
304/360 . . . . . . . . . . . . . . . 2 6 3 . 5 0 °
(USA) (METRIC)
Inches Millimeters
Unless Unless
Otherwise Otherwise
Specified Specified
Connecting Rods
Total Weight (Less Bearings)
304/360 681-689 grams
Total Length (Center-to-Center)
304/360 5.873-5.877 149.17-149.28
Bearing Clearance 0.001-0.003 0.03-0.08
(0.0020-0.0025 (0.051 -0.064
preferred) preferred)
Side Clearance . . . . . . . . . . . . . . 0.006-0.018 0.15-0.46
Maximum Twist 0.0005 0.013
per inch per 25.4 m m
Maximum Bend 0.001 0.03
per inch per 25.4 m m
Crankshaft
End Play 0.003-0.008 0.08-0.20
Main Bearing Journal Diameter
No. 1 , 2 , 3 , 4 . . . . . . 2.7474-2.7489 69.784-69.822
Rear Main 2.7464-2.7479 69.759-69.797
Main Bearing Journal Width
304/360
No. 1 1.2635-1.2695 32.093-32.25
No. 2 1.246-1.248 31.65-31.70
No. 3 1.273-1.275 32.33-32.39
No. 4 1.246-1.248 31.65-31.70
No. 5 . 1.215-1.217 30.86-30.91
Main Bearing Clearance
No. 1 , 2 , 3 , 4 0.001-0.003 0.03-0.08
(0.0017-0.0020 (0.04-0.05
preferred) preferred)
Rear Main
No. 5 .
0.002-0.004
(0.0025-0.003
preferred)
Connecting Rod Journal Diameter
304/360 2.0934-2.0955
Connecting Rod Journal Width
304/360 . . . . . . . .
€
1.998-2.004
Connecting Rod Bearing
Clearance 0.001-0.003
(0.0020-0.0025
preferred)
Maximum Tapec^AII Journals) . . . . 0.0005
Maximum Out-of-Round
(All Journals) . 0.0005
Cylinder Block
Deck Height 9.205-9.211
Deck Clearance
304/360 0.0145
(below block)
0.05-0.10
(0.06-0.08
preferred)
53.172-53.266
50.75-50.90
0.03-0.08
(0.051-0.064
preferred)
0.013
0.013
233.81-233.96
0.368
(below block)
60271 A