Question about 1993 Plymouth Laser

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Timming belt broke on 93 plymouth lazer and need instalation directions

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  • Duane Morse
    Duane Morse May 11, 2010

    timing belt or serpentine belt ?

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  • Plymouth Master
  • 17,970 Answers

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

  1. If possible, position the engine so the No. 1 piston is at TDC.
  2. Disconnect the negative battery cable.
  3. Remove the timing belt covers.
  4. Remove the timing (outer) belt tensioner and remove the outer timing belt.
  5. Remove the outer crankshaft sprocket and flange.
  6. Remove the silent shaft (inner) belt tensioner and remove the belt.
timming belt broke on 93 plymouth lazer and need - 6dd1bcf.jpg

Fig. 1: Silent shaft belt timing marks-1.8L engine

b474c8c.jpg

Fig. 2: Checking the silent stimming belt broke on 93 plymouth lazer and need - 1b23c0f.jpgroper positioning

1b23c0f.jpg

Fig. 3: Timing belt timing mark alignment-1.8L engine

To install:
  1. Align the timing marks of the silent shaft sprockets and the crankshaft sprocket with the timing marks on the front case. Wrap the timing belt around the sprockets so there is no slack in the upper span of the belt and the timing marks are still aligned.
  2. Install the tensioner pulley and move the pulley by hand so the long side of the belt deflects about 1 / 4 in.
  3. Hold the pulley tightly so the pulley cannot rotate when the bolt is tigthened. Tighten the bolt to 15 ft. lbs. (20 Nm) and recheck the deflection amount.
  4. Install the timing belt tensioner fully toward the water pump and tighten the bolts. Place the upper end of the spring against the water pump body.
  5. Align the timing marks of the camshaft, crankshaft and oil pump sprockets with their corresponding marks on the front case or rear cover.
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.
  1. Before installing the timing belt, ensure that the left side (rear) silent shaft (oil pump sprocket) is in the correct position as follows:
    1. Remove the plug from the rear side of the block and insert a tool with shaft diameter of 0.31 in. (8mm) into the hole.
    2. With the timing marks still aligned, the shaft of the tool must be able to go in at least 2 1/2 in. If the tool can only go in about 1 in., the shaft is not in the correct orientation and will cause a vibration during engine operation. Remove the tool from the hole and turn the oil pump sprocket 1 complete revolution. Realign the timing marks and insert the tool. The shaft of the tool must go in at least 2 1/3 in.
    3. Recheck and realign the timing mark.
    4. Leave the tool in place to hold the silent shaft while continuing.
  2. Install the belt to the crankshaft sprocket, oil pump sprocket, then camshaft sprocket, in that order. While doing so, make sure there is no slack between the sprocket except where the tensioner is installed.
  3. Recheck the timing marks' alignment. If all are aligned, loosen the tensioner mounting bolt and allow the tensioner to apply tension to the belt.
  4. Remove the tool that is holding the silent shaft and rotate the crankshaft a distance equal to 2 teeth on the camshaft sprocket. This will allow the tensioner to automatically apply the proper tension on the belt. Do not manually overtigthen the belt or it will howl.
  5. Tigthen the lower mounting bolt first, then the upper spacer bolt.
  6. To verify correct belt tension, check that the deflection at the longest span of the belt is about 1 / 2 in.
  7. Install the timing belt covers and all related items.
  8. Connect the negative battery cable.
2.0L Engine
1990-94 VEHICLES
See Figures 4, 5, 6 and 7
  1. Disconnect the negative battery cable.
  2. Remove the timing belt upper and lower covers.
  3. Rotate the crankshaft clockwise and align the timing marks so No. 1 piston will be at TDC of the compression stroke. At this time the timing marks on the camshaft sprocket and the upper surface of the cylinder head should coincide, and the dowel pin of the camshaft sprocket should be at the upper side.
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.

  1. Rtimming belt broke on 93 plymouth lazer and need - 1f685f2.gifuto tensioner and remove the outermost timing belt.

1f685f2.gif

Fig. 4: Exploded view of the timing belt and sprockets-1990-94 2.0L engines

  1. Remove the timing belt tensioner pulley, tensioner arm, idler pulley, oil pump sprocket, special washer, flange and spacer.
  2. Remove the silent shaft (inner) belt tensioner and remove the belt.
  3. Remove the crankshaft retaining bolts, then remove the pulley.
  4. Remove the crankshaft sprocket retainer bolt and washer from the sprocket, if used, and remove the sprocket. If the sprocket is hard to removed, the proper puller may be used. If no bolts are used on the sprocket. Use the correct puller to remove.
  5. Hold the camshaft stationary using the hexagon cast between journals No. 2 and 3 and remove the retainer bolt. Remove the sprocket from the camshaft.

To install:
  1. Install the sprockets to their appropriate shafts. Install the retainer bolts and tighten the camshaft sprocket bolt to 65 ft. lbs. (90 Nm).
  2. Check both tensioner and idler pulley for bearing wear, and replace if needed.
  3. Align the timing marks on the crankshaft sprocket and the silent shaft sprocket.timming belt broke on 93 plymouth lazer and need - 79a47c7.jpgner timing belt over the crankshaft and silent shaft sprocket. Ensure that there is no slack in the belt.

79a47c7.jptimming belt broke on 93 plymouth lazer and need - 54d0ef5.jpg_mi

Fig. 5: Align the camshaft sprocket so marks face each other and are in alignment with the top surface of the cylinder head-1990-94 2.0L timming belt broke on 93 plymouth lazer and need - 73f137d.jpg/>
54d0ef5.jpg

Fig. 6: Align the crankshaft timing mark and the oil pump sprocket timing mark-1990-94 2.0L engine

73f137d.jpg

Fig. 7: Timing marks in alignment-1990-94 2.0L engine

  1. While holding the inner timing belt tensioner with your fingers, adjust the timing belt tension by applying a force towards the center of the belt, until the tension side of the belt is taut. Tighten the tensioner bolt.
When tightening the bolt of the tensioner, ensure that the tensioner pulley shaft does not rotate with the bolt. Allowing it to rotate with the bolt can cause excessive tension on the belt.
  1. Check belt for proper tension by depressing the belt on its' long side with your finger and noting the belt deflection. The desired reading is 0.20-0.28 in. (5-7mm). If tension is not correct, readjust and check belt deflection.
  2. Install the flange, crankshaft and washer to the crankshaft. The flange on the crankshaft sprocket must be installed towards the inner timing belt sprocket. Tighten bolt to 80-94 ft. lbs. (110-130 Nm).
  3. 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).
continue...

Posted on Sep 09, 2009

  • ZJ Limited
    ZJ Limited Sep 09, 2009

    continue...


    1. 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).



    2. 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.



    3. 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.



    4. 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.



    5. 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.






    1. Align the crankshaft sprocket and oil pump sprocket timing marks.


    2. 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.





    1. Install the timing belt as follows:



      1. Install the timing belt around the intake camshaft sprocket and retain it with 2 spring clips or binder clips.


      2. 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.



      3. Install the timing belt around the idler pulley, oil pump
        sprocket, crankshaft sprocket and the tensioner pulley. Remove the 2
        spring clips.



      4. Lift upward on the tensioner pulley in a clockwise direction and
        tighten the center bolt. Make sure all timing marks are aligned.




      5. Rotate the crankshaft
        1
        /
        4
        turn counterclockwise. Then, turn in clockwise until the timing marks are aligned again.




    2. To adjust the timing (outer) belt, turn the crankshaft
      1
      /
      4
      turn counterclockwise, then turn it clockwise to move No. 1 cylinder to TDC.



    3. 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.



    4. 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.



    5. 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.



    6. 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:




      1. Screw in special tool MD998738 or equivalent, until its end makes contact with the tensioner arm.


      2. 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.



      3. Install the rubber plug to the timing belt rear cover.


    7. Install the timing belt covers and all related items.


    8. Connect the negative battery cable.

    I hope help you with this. Remember rated this.

    For more details visit Autozone.com (free register).


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