Engine Replacement; Engine Mounting - Jeep J-10 Series 1982 Technical & Service Manual

ENGINES
Eight-Cylinder Engine
Four-Cylinder Engine
SECTION INDEX
Page
1B-66
1B-1
1B-1
Page
Six-Cylinder Engine 1B-28
Tools 1 B-104
FOUR-CYLINDER ENGINE
GENERAL
The 151 CID (2.5 liter) four-cylinder engine (fig. 1B-1,
2 and 3) installed in CJ vehicles has a cross-flow cylinder
head, five main crankshaft bearings, hydraulic valve
tappets, conventional ball socket valve rocker arms, a
camshaft that is gear driven directly from the crank
shaft and a coolant heated aluminum intake manifold.
Idintiflcatlon
The two-character engine identification code is
stamped into the left hand rear top corner of the block
(fig. 1B-4).
In addition, engines built for sale in Georgia and Ten
nessee have a nonrepeating number stamped into the
left rear block flange (fig. 1B-4).
Two-Character Engine Code
The following the two-character engine ID codes rep
resent the data listed adjacent to each code.
• 4P—49S, Manual Trans, WO/AC
•4Z—Calif. Manual Trans, WO/AC
Page
Cimshaft and Drive
1B-7
Crankshaft Replacement
1B-24
Crankshaft Vibration Damper Pulley Hub
and OH Seal Replacement
1B-11
Cylinder Block
1B-25
Cylinder Hud
1B-14
Cylinder Head Cover
1B-14
Engine Lubrication System
1B-16
Engine Replacement
1B-1
Exhaust Manifold 1B-13
-
Engine Mounting
Page
General 1B-1
Hydraulic Valve Tappets
1B-9
Intake Manifold
1B-12
Main Bearings
1B-22
Pistons and Connecting Rods
10-19
Push Rod Cover 1B-14
Specifications
1B-26
Timing Case Cover Replacement
1B-11
Valves and Actuating Components
IB-b
Resilient rubber cushions support the engine (fig. 1B-
5) and transmission at three points: at each side on the
centerline of the engine and at the rear between the
transmission extension housing and the rear support
crossmember. Replacement of a cushion may be accom
plished by supporting the weight of the engine or trans
mission at the area of the cushion.
NOTE: Remove the screws that attach the shroud to
the radiator to prevent damage to the shroud by the fan.
ENGINE REPLACEMENT
Removal
(1) Open hood.
(2) Remove battery negative cable from battery.
Remove body ground wire from dash panel.