Jeep UNIVERSAL CJ-2A - Page 79

E
F4-134 ENGINE
E-68. Oil Pan
Examine the oil pan carefully for evidence of cor-
rosion,
dents, or other damage. Special attention
should be given to the mounting flange to be sure
of proper alignment and a tight seal at the cylinder
block, oil pan, and engine front plate. Whenever
the oil pan is removed, it is best to install a new
oil pan gasket.
E-69._ Flywheel
The flywheel is mounted on the rear flange of the
crankshaft. The crankshaft, flywheel, and clutch
assembly are statically and dynamically balanced
separately and as a unit; therefore, these com-
ponents should be assembled in their original rela-
tive positions to maintain this balance.
E-70. F"lywhe~l Inspection
Clean the flywheel thoroughly with cleaning sol-
vent. Inspect the clutch face of the flywheel for
a
burned or scuffed condition or rivet grooves.
Check the flywheel for run-out or improper mount-
ing according to the installation procedure given
in Par. E-88.
If the inner ends of the flywheel ring gear teeth are
only slightly burred or snubbed, remove the burrs
and reshape the teeth using a small emery wheel.
If, however, the teeth are broken, cracked, or
seriously burred, the ring gear should be replaced.
E-71. Ring Gear Replacement
The ring gear is secured on the flywheel by a shrink
fit. Before starting the operation of replacing the
ring gear, place the new ring gear agaip.st ~he old
gear to make certain both have the same number of
teeth.
To remove the ring gear from the flywheel, drill a
%" [9,5 mm.] hole through the ring gear and cut
through any remaining metal with a cold chisel.
Remove the ring gear from the flywheel. Thorough-
ly clean the ring gear surface of the flywheel. Heat
the new ring gear evenly to a range of 650°F. to
700°F. [343°C. a 371 °C.] and place it on the cold
flywheel,
making certain that the chamfer on the
teeth is on the crankshaft side of the flywheel. Be
sure that the ring gear is firmly seated on the fly-
wheel. Allow
the ring gear to cool slowly to shrink
it onto the flywheel. Do not quench the ring gear;
allow it to slowly air cool.
FIG. 100-CYLINDER HEAD
78
]· .. ·--Pan Head Screw
2·-Cable Lower Clip
3·····Cable Upper Clip
4-·Nut
5·-· Washer
6--·Cable Bracket
7-·0il Seal
8-···Rocker Arm Cover
9-Gasket
I 0--Cover Stud
1 1---Connector
12-Pipe Plug
13-Cy!inder Head
14-Gasket
IS-Thermostat
16-Gasket
17-'--Water Outlet Fitting
18-Screw and Lockwasher
19-Carburetor Mounting Stud
20-Pipe Plug Yz"
21-Pipe Plug )4'