Monday, April 23, 2012

Dodge and Chrysler VIN N Engine TIMING BELT Removal?

The complete procedure to replace The Engine.
The Vin N Engine removal.

Please Note that this Procedure Covers all U.S. and Canadian models of the Chrysler/Dodge Avenger, Chrysler Sebring Coupe and Dodge Stratus/ Stratus Coupe models for Year 1999 to 2005.

2.5L (VIN N) Engine:---

  1. Disconnect the negative battery cable.
  2. Remove the accessory drive belts.
  3. Using Crankshaft Holding Tools MB990767 and MB998754, remove the crankshaft bolt and remove the pulley.
  4. Remove the heated oxygen sensor connection.
  5. Remove the power steering pump with the hose attached and position it aside.
  6. Remove the power steering pump bracket.
  7. Place a floor jack under the engine oil pan, with a block of wood in between, and raise the engine so that the weight of the engine is no longer being applied to the engine support bracket.
  8. Remove the upper engine mount. Spraying lubricant, slowly remove the reamer (alignment) bolt and remaining bolts and remove the engine support bracket.
    The reamer bolt is sometimes heat-seized on the engine support bracket.
  9. Remove the front timing belt covers.
  10. If the timing belt is to be reused, draw an arrow indicating the direction of rotation on the back of the belt for reinstallation.
  11. Align the timing marks by turning the crankshaft with MD998769 Crankshaft Turning tool. Loosen the center bolt on the timing belt tensioner pulley and remove the belt.
    Do not rotate the crankshaft or camshaft after removing the timing belt or valvetrain components may be damaged. Always align the timing marks before removing the timing belt.
  12. Check the belt tensioner for leaks and check the pushrod for cracks.
  13. If the timing belt tensioner is to be replaced, remove the retaining bolts and remove the timing belt tensioner. When the timing belt tensioner is removed from the engine, it is necessary to compress the plunger into the tensioner body.
  14. Place the tensioner in a vise and slowly compress the plunger. Take care not to damage the pushrod.
    Position the tensioner in the vise the same way it will be installed on the engine. This is to ensure proper pin orientation for when the tensioner is installed on the engine.
  15. When the plunger is compressed into the tensioner body, install a pin through the body and plunger to hold the plunger in place until the tensioner is installed. 

    Fig. Camshaft and crankshaft alignment marks-Chrysler 2.5L (VIN N) engines
To install:
  1. Install the timing belt tensioner and tighten the retaining bolts to 17 ft. lbs. (24 Nm), but do not remove the pin at this time.
  2. Check that all timing marks are still aligned.
  3. Use bulldog clips (large paper binder clips) or other suitable tool to secure the timing belt and to prevent it from slacking. Install the timing belt. Starting at the crankshaft, go around the idler pulley, then the front camshaft sprocket, the water pump pulley, the rear camshaft sprocket and the tensioner pulley.
  4. Be sure the belt is tight between the crankshaft and front camshaft sprocket, between the camshaft sprockets and the water pump. Gently raise the tensioner pulley, so that the belt does not sag, and temporarily tighten the center bolt.
  5. Move the crankshaft 1 / 4 turn counterclockwise, then turn it clockwise to the position where the timing marks are aligned.
  6. Loosen the center bolt of the tensioner pulley. Using MD998767 tensioner tool, and a torque wrench apply 3.3 ft. lbs. (4.4 Nm) tensional torque to the timing belt and tighten the center bolt to 35 ft. lbs. (48 Nm). When tightening the bolt, be sure that the tensioner pulley shaft does not rotate with the bolt.
  7. Remove the tensioner plunger pin. Pretension is correct when the pin can be removed and installed easily. If the pin cannot be easily removed and installed it is still satisfactory as long as it is within its standard value.
  8. Check that the tensioner pushrod is within the standard value. When the tensioner is engaged the pushrod should measure 0.149-0.177 in. (3.8-4.5mm).
  9. Rotate the crankshaft two revolutions and check the timing marks. If the timing marks are not properly aligned remove the belt and repeat Steps 17 through 23.
  10. Install the timing belt covers.
  11. Install the engine mounting bracket.
  12. Lower the engine enough to install the engine mount onto bracket and remove the floor jack.
  13. Install the power steering pump bracket and pump.
  14. Install the crankshaft pulley and tighten the retaining bolt to 13 ft. lbs. (18 Nm).
  15. Install the accessory drive belts.
  16. Properly fill the cooling system.
  17. Connect the negative battery cable.
  18. Check for leaks and proper engine and cooling system operation.

These details will help.


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