Chrysler RAM TRUCK 2500 1994 Service Manual page 777

J9309-46
Fig. 8 Installing Oil Seal
(14) Fill cooling system (refer to Group 7, Cooling
System for the proper procedure).
(15) Connect the negative cable to the battery.
FRONT CRANKSHAFT OIL SEAL REPLACEMENT
The oil seal can be replaced without removing the
timing chain cover provided the cover is not mis­
aligned.
(1) Disconnect the negative cable from the battery.
(2) Remove vibration damper.
(3) I f front seal is suspected of leaking, check front
oil seal alignment to crankshaft. The seal installa­
tion/alignment tool 6635, should fit with minimum
interference. I f tool does not fit, the cover must be re­
moved and installed properly.
(4) Place a suitable tool behind the lips of the oil
seal to pry the oil seal outward. Be careful not to
damage the crankshaft seal surface of cover.
(5) Place the smaller diameter of the oil seal over
Front Oil Seal Installation Tool 6635 (Fig. 6). Seat
the oil seal i n the groove of the tool.
(6) Position the seal and tool onto the crankshaft
(Fig. 7).
(7) Using the vibration damper bolt, tighten the
bolt to draw the seal into position on the crankshaft
(Fig. 8).
(8) Remove the vibration damper bolt and seal in­
stallation tool.
(9) Install the vibration damper.
(10) Connect the negative cable to the battery.
CAMSHAFT
This procedure requires that the engine is removed
from the vehicle.
The camshaft has an integral oil pump and distrib­
utor drive gear (Fig. 9).
THRUST
PLATE
PUMP A N D
DISTRIBUTOR DRIVE
GEAR INTEGRAL
WITH CAMSHAFT
•CAMSHAFT SPROCKET
J9309-71
Fig. 9 Camshaft and Sprocket Assembly
REMOVAL
(1) Remove intake manifold.
(2) Remove cylinder head covers.
(3) Remove timing case cover and timing chain.
(4) Remove rocker arms.
(5) Remove push rods and tappets. Identify each
part so i t can be installed i n its original location.
(6) Remove distributor and lift out the oil pump
and distributor drive shaft.
(7) Remove camshaft thrust plate, note location of
oil tab (Fig. 10).
THRUST PLATE
REAR SIDE
J 9 2 0 9 - 1 3 2
Fig. 10 Timing Chain Oil Tab installation
(8) Install a long bolt into front of camshaft to fa­
cilitate removal of the camshaft. Remove camshaft,
being careful not to damage cam bearings with the
cam lobes.
REMOVAL—BEARING
(1) With engine completely disassembled, drive out
rear cam bearing core hole plug.