Dodge Omni/Horizon/Rampage 1978-1989 Repair Guide

Timing Sprockets and Oil Seal

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REMOVAL & INSTALLATION



1.7L Engine

The camshaft, intermediate shaft, and crankshaft pulleys are located by keys on their respective shafts and each is retained by a bolt. To remove any or all of the pulleys, first remove the timing belt cover and belt and then use the following procedure.


WARNING
When removing the crankshaft pulley, don't remove the four socket head bolts which retain the outer belt pulley to the timing belt pulley.



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Fig. Fig. 1 Remove the center bolt

  1. Remove the timing cover(s).
  2.  
  3. Matchmark the timing belt and gear for installation.
  4.  
  5. Pull the timing belt off the gear.
  6.  



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Fig. Fig. 2 Remove the pulley from the shaft

  1. Remove the center bolt.
  2.  
  3. Gently pry the pulley off the shaft.
  4.  
  5. If the pulley is stubborn in coming off, use a gear puller. Do not hammer on the pulley.
  6.  
  7. Remove the pulley and key. The oil seal may now be removed.
  8.  



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Fig. Fig. 3 The oil seal can now be removed



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Fig. Fig. 4 Use tool L-4424 or an equivalent, to remove the front oil seal on the 1.7L engine

To install:

  1. Install the pulley in the reverse order of removal.
  2.  
  3. Install a new seal using a seal installation tool.
  4.  



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Fig. Fig. 5 To install the seal, use tool L-4422 or an equivalent

  1. Tighten the center bolt to 58 ft. lbs. (78 Nm).
  2.  
  3. Install the timing belt, check valve timing, tension belt, then install the cover.
  4.  

2.2L Engine
  1. Raise and support the car on jackstands.
  2.  
  3. Remove the right inner splash shield.
  4.  
  5. Remove the crankshaft pulley.
  6.  
  7. Unbolt and remove both halves of the timing belt cover.
  8.  
  9. Take up the weight of the engine with a jack.
  10.  
  11. Remove the right engine mount bolt and raise the engine slightly.
  12.  
  13. Remove the timing belt tensioner and remove the belt.
  14.  
  15. Remove the crankshaft sprocket bolt, and with a puller, remove the sprocket.
  16.  
  17. Using special Tool C-4679 or its equivalent, remove the crankshaft seal.
  18.  
  19. Unbolt and remove the camshaft and intermediate shaft sprockets.
  20.  



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Fig. Fig. 6 Using tools C-4687 and C-4687-1, remove the camshaft and intermediate shaft sprockets

To install:

  1. To install the crankshaft seal, first polish the shaft with 400 grit emery paper. If the seal has a steel case, lightly coat the OD of the seal with Loctite® Stud N' Bearing Mount or its equivalent. If the seal case is rubber coated, generously apply a soap and water solution to facilitate installation. Install the seal with a seal driver.
  2.  



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Fig. Fig. 7 To install the crankshaft seal use C-6342, for the intermediate and camshaft seal use tool C-4680



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Fig. Fig. 8 Install the sprockets making sure that the timing marks are aligned as illustrated. When installing the camshaft sprocket, make certain that the arrows on the sprocket are in line with the No. 1 camshaft bearing cap-to-cylinder head line



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Fig. Fig. 9 When installing the camshaft sprocket, make certain that the arrows on the sprocket are in line with the No. 1 camshaft bearing cap-to-cylinder head line

  1. Install the sprockets making sure that the timing marks are aligned as illustrated. When installing the camshaft sprocket, make certain that the arrows on the sprocket are in line with the No. 1 camshaft bearing cap-to-cylinder head line.
  2.  
  3. The small hole in the camshaft sprocket must be at the top and in line with the vertical center line of the engine.
  4.  
  5. Rotate the engine two full revolutions and recheck timing mark positioning.
  6.  
  7. Install the belt.
  8.  
  9. Rotate the engine to the No. 1 piston TDC position.
  10.  
  11. Install the belt tensioner and place tool C-4703 on the large hex nut.
  12.  
  13. Reset the belt tension so that the axis of the tool is about 15° off of horizontal.
  14.  
  15. Turn the engine clockwise two full revolutions to No. 1 TDC.
  16.  
  17. Tighten the tensioner locknut using a weighted wrench to the following:

    Timing belt cover bolts-105 inch lbs. (12 Nm)
     
    Camshaft sprocket bolt-65 ft. lbs. (88 Nm)
     
    Crankshaft sprocket bolt-50 ft. lbs. (68 Nm)
     
    Intermediate shaft sprocket bolt-65 ft. lbs. (88 Nm)
     

  18.  

 
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