It is recommended that the timing belt be replaced periodically to
assure correct engine performance. Because of their composition, timing
belts wear over a period of time and mileage. To avoid vehicle break
down and possible engine damage, the manufacturer recommends timing
belt replacement at 60,000 miles.
REMOVAL & INSTALLATION1.8L Engine
See Figures 1, 2 and 3
Fig. 1: Silent shaft belt timing marks-1.8L engine
Fig. 2: Chetimming belt broke on 93 plymouth lazer and need - 1b23c0f.jpgilent shafts for proper positioning
Fig. 3: Timing belt timing mark alignment-1.8L engine
To install:
There is a possibility to align all timing marks and have the oil
pump sprocket and silent shaft out of time, causing an engine vibration
during operation. If the following step is not followed exactly, there
is a 50 percent chance that the silent shaft alignment will be 180
degrees off.
2.0L Engine
1990-94 VEHICLES
See Figures 4, 5, 6 and 7
Always rotate the crankshaft in a clockwise direction. Make a mark
on the back of the timing belt indicating the direction of rotation so
it may be reassembled in the same direction if it is to be reused.
Fig. 4: Exploded view of the timing belt and sprockets-1990-94 2.0L engines
continue...To install the oil pump sprocket, insert a Phillips screwdriver
with a shaft 0.31 in. (8mm) in diameter into the plug hole in the left
side of the cylinder block to hold the left silent shaft. Tighten the
nut to 36-43 ft. lbs. (50-60 Nm).
Using a wrench, hold the camshaft at its' hexagon between journal
No. 2 and 3 and tighten camshaft sprocket mounting bolt, if removed, to
58-72 ft. lbs. (80-100 Nm). If no hexagon is present between journal
No. 2 and 3, hold the sprocket stationary with a spanner wrench while
tightening the sprocket retainer bolt.
Carefully push the auto tensioner rod in until the set hole in
the rod aligned up with the hole in the cylinder. Place a wire into the
hole to retain the rod.
Install the tensioner pulley onto the tensioner arm. Locate the
pinhole in the tensioner pulley shaft to the left of the center bolt.
Then, tighten the center bolt finger-tight.
When installing the timing belt, turn the 2 camshaft sprockets so
their dowel pins are located on top. Align the timing marks facing each
other and with the top surface of the cylinder head. When you let go of
the exhaust camshaft sprocket, it will rotate 1 tooth in the
counterclockwise direction. This should be taken into account when
installing the timing belts on the sprocket.
Both camshaft sprockets are used for the intake and exhaust
camshafts and are provided with 2 timing marks. When the sprocket is
mounted on the exhaust camshaft, use the timing mark on the right with
the dowel pin hole on top. For the intake camshaft sprocket, use the 1
on the left with the dowel pin hole on top.
Align the crankshaft sprocket and oil pump sprocket timing marks.
After alignment of the oil pump sprocket timing marks, remove the
plug on the cylinder block and insert a Phillips screwdriver with a
shaft diameter of 0.31 in. (8mm) through the hole. If the shaft can be
inserted 2.4 in. deep, the silent shaft is in the correct position. If
the shaft of the tool can only be inserted 0.8-1.0 in. (20-25mm) deep,
turn the oil pump sprocket 1 turn and realign the marks. Reinsert the
tool making sure it is inserted 2.4 in. deep. Keep the tool inserted in
hole for the remainder of this procedure.
The above step assures that the oil pump socket is in correct
orientation to the silent shafts. This step must not be skipped or a
vibration may develop during engine operation.
Install the timing belt as follows:
Install the timing belt around the intake camshaft sprocket and retain it with 2 spring clips or binder clips.
Install the timing belt around the exhaust sprocket, aligning the
timing marks with the cylinder head top surface using 2 wrenches.
Retain the belt with 2 spring clips.
Install the timing belt around the idler pulley, oil pump
sprocket, crankshaft sprocket and the tensioner pulley. Remove the 2
spring clips.
Lift upward on the tensioner pulley in a clockwise direction and
tighten the center bolt. Make sure all timing marks are aligned.
Rotate the crankshaft
1
/
4
turn counterclockwise. Then, turn in clockwise until the timing marks are aligned again.
To adjust the timing (outer) belt, turn the crankshaft
1
/
4
turn counterclockwise, then turn it clockwise to move No. 1 cylinder to TDC.
Loosen the center bolt. Using tool MD998738 or equivalent and a
torque wrench, apply a torque of 1.88-2.03 ft. lbs. (2.6-2.8 Nm).
Tighten the center bolt.
Screw the special tool into the engine left support bracket until
its end makes contact with the tensioner arm. At this point, screw the
special tool in some more and remove the set wire attached to the auto
tensioner, if the wire was not previously removed. Then remove the
special tool.
Rotate the crankshaft 2 complete turns clockwise and let it sit
for approximately 15 minutes. Then, measure the auto tensioner
protrusion (the distance between the tensioner arm and auto tensioner
body) to ensure that it is within 0.15-0.18 in. (3.8-4.5mm). If out of
specification, repeat Step 1-4 until the specified value is obtained.
If the timing belt tension adjustment is being performed with the
engine mounted in the vehicle, and clearance between the tensioner arm
and the auto tensioner body cannot be measured, the following
alternative method can be used:
Screw in special tool MD998738 or equivalent, until its end makes contact with the tensioner arm.
After the special tool makes contact with the arm, screw it in
some more to retract the auto tensioner pushrod while counting the
number of turns the tool makes until the tensioner arm is brought into
contact with the auto tensioner body. Make sure the number of turns the
special tool makes conforms with the standard value of 2 1
/
2
-3 turns.
Install the rubber plug to the timing belt rear cover.Install the timing belt covers and all related items.
Connect the negative battery cable.
I hope help you with this. Remember rated this.
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