Question about 1990 Plymouth Laser

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Timming bailt marks for 1990 plym laser rs - 1990 Plymouth Laser

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  • Expert
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WHAT ENGINE YOU HAVE ??? WHAT SIZE DUAL CAM OR SINGLE CAM?? THIS US ONE LET ME KNOW IF YOU NEED THE OTHER ONE I CAN SEND IT TO YOU. ORLET ME SEE IF I CAN UP LOAD THE OTHER SINGLE CAM TOO K OH SEND ME A TESTIMONIAL OR A FEEDBACK PLEASE .
AND ONE IT FOR THE 2.0 TWIN CAM AND THE OTHER IS FOR THE 1.8 SINGLE CAM. timming bailt marks for 1990 plym laser rs - 00db076.gife4f2067.gif

Posted on Aug 02, 2010

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  • Plymouth Master
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REMOVAL & INSTALLATION 1.8L Engine

  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. Fig. 1: Silent shaft belt timing marks — 1.8L engine timming bailt marks for 1990 plym laser rs - 89573g93.gif
    Fig. 2: Checking the silent shafts for proper positioning 89573g94.gif
    Fig. 3: Timing belt timing mark alignment — 1.8L engine 89573g95.gif
    To install:
  7. 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.
  8. Install the tensioner pulley and move the pulley by hand so the long side of the belt deflects about 1⁄4 in.
  9. 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.
  10. 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.
  11. Align the timing marks of the camshaft, crankshaft and oil pump sprockets with their corresponding marks on the front case or rear cover. NOTE: 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.
  12. 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.
  13. 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.
  14. Recheck the timing marks' alignment. If all are aligned, loosen the tensioner mounting bolt and allow the tensioner to apply tension to the belt.
  15. 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.
  16. Tigthen the lower mounting bolt first, then the upper spacer bolt.
  17. To verify correct belt tension, check that the deflection at the longest span of the belt is about 1⁄2 in.
  18. Install the timing belt covers and all related items.
  19. Connect the negative battery cable.

Posted on Aug 02, 2010

  • Duane Wong
    Duane Wong Aug 02, 2010

    2.0L Engine
    1990–94 VEHICLES


    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.
      NOTE: 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.


    4. Remove the auto tensioner and remove the outermost timing belt.





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




    5. Remove the timing belt tensioner pulley, tensioner arm, idler pulley, oil pump sprocket, special washer, flange and spacer.
    6. Remove the silent shaft (inner) belt tensioner and remove the belt.
    7. Remove the crankshaft retaining bolts, then remove the pulley.
    8. 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.
    9. 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:

    10. Install the sprockets to their appropriate shafts. Install the retainer bolts and tighten the camshaft sprocket bolt to 65 ft. lbs. (90 Nm).
    11. Check both tensioner and idler pulley for bearing wear, and replace if needed.
    12. Align the timing marks on the crankshaft sprocket and the silent shaft sprocket. Fit the inner timing belt over the crankshaft and silent shaft sprocket. Ensure that there is no slack in the belt.





      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 engine







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







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




    13. 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.
      NOTE: 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.


    14. 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.

    (There's more to this post)

  • Duane Wong
    Duane Wong Aug 02, 2010

    2.4L Engine


    1. If possible, position the engine so the No. 1 piston is at TDC.
    2. Disconnect the negative battery cable.
    3. Remove the splash shield under the engine.
    4. Safely support the weight of the engine and remove the engine mount and bracket assembly.
    5. Remove the drive belts and the timing belt covers.
      NOTE: If timing belts are going to be reused, mark the direction of rotation on the belt. This will ensure the belt is reinstalled in same direction, extending belt life.


    6. To loosen the timing (outer) belt tensioner, install special tool MD998738 or equivalent, to the slot and screw inward to move tensioner toward the water pump. Once the tension has been relieved, remove the outer timing belt.
    7. If tensioner replacement is required, align the pin hole in the tensioner rod to the hole in the tensioner cylinder. Insert a 0.055 inch (1.4 mm) wire in the hole and remove the special tool from the slot. With the cylinder tension relieved, remove the auto tensioner cylinder assembly two mounting bolts.
    8. Remove the outer crankshaft sprocket and flange.
    9. Loosen the silent shaft (inner) belt tensioner and remove the belt. If pulley replacement is required, remove the center adjusting bolt.





      Fig. 32: Exploded view of the inner (B) timing belt and related components — 2.4L engine




    10. Remove the crankshaft pulley retainer bolts and remove the pulley.





      Fig. 33: You will probably have to use a special tool to remove the crankshaft pulley bolt — 2.4L engine




    11. Remove the crankshaft sprocket retainer bolt and washer from the sprocket, if used, and remove sprocket. If sprocket is difficult to remove, the appropriate puller may be used. If no bolts are used on the sprocket, use the appropriate puller to remove.





      Fig. 34: If you're having trouble removing the sprocket, you may have to use a suitable puller




    12. 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:

    13. Install the sprockets to their appropriate shafts. Install the retainer bolts and Tighten the camshaft sprocket bolt to 65 ft. lbs. (90 Nm)
      Inspect the timing belts in detail for any flaw or wear. Check the sprockets and tensioner for wear. The sprocket teeth should be well defined, not rounded and the valleys between the teeth should be clean. Turn both tensioner pulleys and check for any signs of bearing wear. If sprockets or pulleys show any sign of wear, they must be replaced.
      WARNING
      Do not spray or immerse the sprockets or tensioners in cleaning solvent. The sprocket may absorb the solvent and transfer it to the belt. The tensioners are internally lubricated and the solvent will dilute or dissolve the lubricant.


    14. 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.
    15. Install the tensioner pulley and move the pulley by hand so the long side of the belt deflects about 1⁄4 inch.
    16. Hold the pulley tightly so the pulley cannot rotate when the bolt is tigthened. Tighten the bolt to 14 ft. lbs. (19 Nm) and recheck the deflection amount.
    17. Align the timing marks of the camshaft, crankshaft and oil pump sprockets with their corresponding marks on the front case or rear cover.
      NOTE: 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.





      Fig. 35: Proper timing component alignment points — 2.4L engines




    18. 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 inches. (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 inches. 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 1⁄4 inches.
      3. Recheck and realign the timing mark.
      4. Leave the tool in place to hold the silent shaft while continuing.

    19. If the camshaft belt tensioner was removed, use a vise to 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. Mount the tensioner to the engine block and tighten the mounting bolt to 17 ft. lbs. (23 Nm).
    20. 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.
    21. To adjust the timing (outer) belt perform the following steps:

      1. Turn the crankshaft 1⁄4 turn counterclockwise, then turn it clockwise to move No. 1 cylinder to TDC.
      2. Loosen the center bolt. Using tool MD998752 or equivalent and a torque wrench, apply a torque of 2.6 ft. lbs. (3.6 Nm). Tighten the center bolt.
      3. 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.
      4. Rotate the crankshaft two 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 inch (3.8–4.5mm). If out of specification, repeat Step 1–4 until the specified value is obtained.
        NOTE: Do not manually overtigthen the belt or it will howl.


    22. Install the upper and lower timing belt covers. Tighten the bolts to the specifications shown in the accompanying figure.





      Fig. 36: Timing belt cover retainer specifications — 2.4L engine




    23. Install the drive belts and properly adjust.
    24. Reinstall the engine mount and bracket assembly and safely lower the engine.
    25. Install the splash shield.
    26. Connect the negative battery cable. Start the engine and let it idle.
    27. Run engine until thermostat opens. Check and adjust ignition timing.


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