Dodge D150 1990 Service Manual page 637

g - 50 5.2L/5.9L ENGINE
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Fig. 4 Alignment of Timing Marks
up t o 0.254 m m (0.010 inch) end play w i t h a used
t h r u s t plate. I f not w i t h i n these l i m i t s i n s t a l l a new
t h r u s t plate.
TIMING CHAIN COVER EXTERNAL OIL SEAL
REMOVAL
(1) Disconnect battery.
(2) Loosen and remove belts f r o m crankshaft p u l -
ley.
(3) Remove r a d i a t o r shroud retainer screws and set
shroud back over engine.
(4) Remove fan and shroud from engine.
(5) Remove crankshaft p u l l e y and v i b r a t i o n damper
belt and washer f r o m end o f crankshaft.
(6) I n s t a l l bar f r o m Tool (C-3688) and screw from
Tool (C-3732A) and p u l l v i b r a t i o n damper from end
of crankshaft (Fig. 2).
(7) U s i n g a suitable tool behind t h e lips of the o i l
seal pry o u t w a r d , being careful not t o damage the
crankshaft seal surface of cover (Fig. 5).
Fig. 5 Removing Oil Seal
INSTALLATION
(1) I n s t a l l new seal by i n s t a l l i n g t h e threaded shaft
p a r t of Tool (C-4251) into the threads o f the crank-
shaft.
(2) Place seal i n t o opening w i t h seal spring towards
the inside of the engine.
(3) Place the i n s t a l l i n g adapter C-4251-3 w i t h t h e
t h r u s t bearing and n u t on the shaft. T i g h t e n n u t u n -
t i l t o o l i s flush w i t h the t i m i n g chain cover (Fig. 6).
Fig. 6 Installing Oil Seal
(4) I n s t a l l v i b r a t i o n damper using Tool C-3688
(Fig. 7).
(5) I n s t a l l retainer bolt and washer and torque t o
183 N - m (135 f t . lbs.) torque.
(6) I n s t a l l pulley on v i b r a t i o n damper and torque
to 23 N n n (200 i n . lbs.) torque.
(7) Set radiator shroud back over engine and i n -
s t a l l f a n and belts.
(8) I n s t a l l radiator shroud t o radiator.
(9) Connect battery.
Fig. 7 Installing Vibration Damper with Tool C-3688
COVER INSTALLATION
(1) Be sure m a t i n g surfaces of chain case cover and
cylinder block are clean and free from burrs.
(2) U s i n g a new cover gasket, carefully i n s t a l l
c h a i n case cover to avoid damaging o i l pan gasket. A
3.175 m m ( l / 8 t h inch) diameter bead of R T V sealer
is recommended on t h e o i l pan gasket. D O N O T
t i g h t e n bolts a t t h i s time.
(3) Lubricate seal lip w i t h lubriplate, position v i -
b r a t i o n damper hub slot on crankshaft. Damper w i l l
act as a p i l o t for the crankshaft seal.
(4) Place i n s t a l l i n g tool, p a r t of Puller set Tool C-
3688 i n position and press vibration damper on
crankshaft (Fig. 7).