Timing Chain Cover External Oil Seal; Removing Oil Seal; Installing Vibration Damper With Tool C-3688; Installing Oil Seal - Dodge D150 1990 Service Manual

TIMING CHAIN COVER EXTERNAL OIL SEAL
REMOVAL
(1) Disconnect battery.
(2) Loosen and remove belts from crankshaft p u l -
ley.
(3) Remove radiator shroud retainer bolts and set
shroud back over engine.
(4) Remove fan and shroud f r o m engine.
(5) Remove crankshaft pulley and v i b r a t i o n damper
bolt and washer from end of crankshaft.
(6) I n s t a l l b a r 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 o f
crankshaft (Fig. 3).
(7) U s i n g a suitable tool behind the lips of the o i l
seal p r y outward, being careful n o t t o damage t h e
crankshaft seal surface o f cover (Fig. 6).
Fig. 6 Removing Oil Seal
INSTALLATION
(1) I n s t a l l new seal b y i n s t a l l i n g the threaded shaft
p a r t o f tool (C-4251) into t h e threads o f the crank-
shaft.
(2) Place seal i n t o opening w i t h seal s p r i n g towards
the inside of the engine.
(3) Place t h e 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 the n u t
u n t i l tool is flush w i t h t h e t i m i n g chain cover (Fig.
7).
Fig. 7 Installing Oil Seal
(4) I n s t a l l v i b r a t i o n damper u s i n g tool C-3688 (Fig.
8).
(5) I n s t a l l retainer bolt and washer and t i g h t e n the
bolt to 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 a n d t i g h t e n
the bolt to 23 N*m (200 i n . lbs.) torque.
(7) Set radiator shroud back over engine a n d i n -
s t a l l fan and belts.
(8) I n s t a l l radiator shroud t o radiator.
(9) Connect battery.
COVER INSTALLATION
(1) Be sure m a t i n g surfaces o f chain case cover a n d
cylinder block are clean and free from b u r r s .
(2) U s i n g a new cover gasket, carefully i n s t a l l
chain case cover to avoid damaging o i l pan gasket. A
3.175 m m (1/8 inch) diameter bead of R T V sealer, or
equivalent is recommended on t h e o i l pan gasket. D o
n o t t i g h t e n b o l t s a t t h i s t i m e .
(3) Lubricate seal l i p w i t h l u b r i p l a t e , or equivalent.
Position damper h u b slot i n crankshaft. D a m p e r w i l l
act as a pilot for the crankshaft seal.
(4) Place i n s t a l l i n g tool, p a r t o f Puller set Tool C-
3688 i n position a n d press v i b r a t i o n damper on
crankshaft (Fig. 8).
Fig. 8 Installing Vibration Damper with Tool C-3688
(5) Tighten chain case cover bolts to 4 1 N«m (30 f t .
lbs.) torque. Then t i g h t e n o i l p a n bolts t o 23 N»m
(200 i n . lbs.) torque.
(6) I n s t a l l v i b r a t i o n damper retainer bolt w i t h
washer and t i g h t e n to 183 N n n (135 ft. lbs.) torque.
(7) Position pulley on v i b r a t i o n damper a n d attach
w i t h bolts and lockwashers. T i g h t e n bolts t o 23 N»m
(200 i n . lbs.) torque.
(8) I n s t a l l fuel lines.
(9) I n s t a l l water pump and housing assembly u s i n g
new gaskets. Tighten bolts to 4 1 N n n (30 f t . lbs.)
torque.
(10) I n s t a l l power steering p u m p .
(11) I n s t a l l fan and belt, hoses and close drains.
(12) I n s t a l l radiator shroud.
(13) F i l l cooling system (see Group 7, Cooling Sys-
t e m for the proper procedure).