Chrysler Colt/Vista 1990-1993 Repair Information

Camshaft

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REMOVAL & INSTALLATION



1990 1.5L Engine

See Figures 1 and 2

Due to clearance problems, it may be necessary to remove the cylinder head.

  1. Disconnect the negative battery cable.
  2.  
  3. Tag and remove the spark plug wires.
  4.  
  5. Remove the distributor.
  6.  
  7. Remove the rocker cover.
  8.  



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Fig. Fig. 1: Camshaft and related parts - 1990 1.5L engine



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Fig. Fig. 2: Installing camshaft seal - 1990 1.5L engine

  1. Remove the timing belt.
  2.  
  3. Remove the camshaft sprocket and front seal.
  4.  
  5. Remove the rocker arm assemblies.
  6.  
  7. Remove the camshaft rear cover and gasket.
  8.  
  9. Remove the camshaft thrust plate and case.
  10.  
  11. Carefully slide the camshaft out of the rear of the cylinder head.
  12.  

To install:
  1. Carefully slide the camshaft and thrust case into the cylinder head from the front.
  2.  
  3. Install the thrust plate, gasket and rear cover.
  4.  
  5. Install the rocker arm assemblies.
  6.  
  7. Install the sprocket and timing belt.
  8.  
  9. Install the distributor, rocker cover and plug wires.
  10.  
  11. Connect the negative battery cable. Start the engine and test engine performance and check for leaks.
  12.  

1991-93 1.5L Engine

Due to clearance problems, it may be necessary to remove the cylinder head.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the rocker cover.
  4.  

  1. Remove the timing belt.
  2.  
  3. Remove the camshaft sprocket and front seal.
  4.  
  5. Remove the rocker arm assemblies.
  6.  
  7. Carefully slide the camshaft out of the cylinder head.
  8.  

To install:
  1. Carefully install the camshaft in the head with the dowel pin at the 12 o'clock position.
  2.  
  3. Install the rocker arm assemblies.
  4.  
  5. Coat a new seal with oil and install the seal, with the lip facing out.
  6.  
  7. Install the sprocket and timing belt.
  8.  
  9. Install the rocker cover.
  10.  
  11. Connect the negative battery cable. Start the engine and test engine performance and check for leaks.
  12.  

1.6L Engine

See Figures 3 through 7



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Fig. Fig. 3: Camshaft and related parts - 1.6L engine



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Fig. Fig. 4: Camshaft differences - 1.6L engine



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Fig. Fig. 5: Camshaft positioning - 1.6L engine

  1. Disconnect the negative battery cable. Remove the cylinder head.
  2.  
  3. Remove the crank angle sensor. Remove both camshaft drive sprockets.
  4.  
  5. Remove both rear (opposite end of the drive sprockets) camshaft bearing caps.
  6.  



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Fig. Fig. 6: Crankshaft angle sensor installation - 1.6L engine



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Fig. Fig. 7: Apply sealant as shown - 1.6L engine

  1. Remove both front bearing caps and front oil seals.
  2.  
  3. Remove the remaining camshaft bearing caps alternating from the rear of the head to the front.
  4.  
  5. Remove the camshafts.
  6.  
  7. Clean and inspect all parts. Check the rollers on the end of the rocker arms. If the rollers are warn on do not rotate smoothly, replace as necessary.
  8.  

To install:
  1. Lubricate the camshafts. Place the camshafts in position. The intake side camshaft has a slit in the rear to drive the crank angle sensor. The bearing caps No. 2-5 are the same shape. When installing them, check the top markings to identify the intake or exhaust side. Left or Right is marked on the front caps, L for the intake side; R for the exhaust side.
  2.  
  3. Tighten the bearing caps, in 2 or 3 steps, to 14-15 ft. lbs. (20-22 Nm).
  4.  
  5. Make sure the rocker arm is properly mounted on the lash adjuster and valve stem tip.
  6.  
  7. Install the front oil seals. Turn the intake camshaft until the front dowel pin is facing straight up at the 12 o'clock position. Install the crank angle sensor with the punch mark on the sensor housing aligned with the notch in the plate. Install the drive sprocket and tighten the bolts to 58-72 ft. lbs. (79-98 Nm).
  8.  

1990 1.8L Engine 2.0L Engine

See Figure 8

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the rocker cover. Matchmark the rocker arm bearing caps to the cylinder head.
  4.  



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Fig. Fig. 8: Camshaft and related parts - 2.0L engine

  1. Remove the bearing cap bolts from the cylinder head, but do not remove them from the bearing caps and shafts. Lift the rocker arm assembly from the cylinder head.
  2.  
  3. Make sure the timing marks on the camshaft sprocket and head are properly aligned, so No. 1 piston is at TDC of the compression stroke. If the camshaft sprocket is to be removed, do so before removing the camshaft from the head. If not, it will be difficult to remove the sprocket bolt. Prior to removing the bearing caps or belt, remove the camshaft sprocket bolt and lift off the sprocket and belt. Discard the camshaft oil seal.
  4.  
  5. Remove the camshaft from the bearing saddles.
  6.  

On some engines, a distributor drive gear and spacer are used on the front of the camshaft.

  1. The valves, valve springs and valve guide seals can now be removed from the cylinder head.
  2.  
  3. Installation is the reverse of removal. Coat all parts with clean engine oil prior to installation. Use a seal driver to install the new oil seal after the camshaft is in place.
  4.  

On the 2.0L engine, turn the camshaft until the dowel pin on the shaft end is in the 12 o'clock position. This will ensure correct camshaft sprocket installation.

  1. Tighten the sprocket bolt to 50-60 ft. lbs. (68-81 Nm). on the 2.0L and 44-55 ft. lbs. (60-75 Nm). on the 1.8L engines. Tighten the rocker cover bolts to 5 ft. lbs. (7 Nm).
  2.  

1992-93 1.8L Engine 2.4L Engine

See Figures 9, 10 and 11

  1. Disconnect the negative battery cable.
  2.  
  3. On the 1.8L engine, remove the battery and battery cover. Disconnect the air flow sensor connector and remove the air cleaner case cover.
  4.  
  5. Remove the breather hose. Disconnect the PCV hose.
  6.  



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Fig. Fig. 9: Remove these parts to prepare for camshaft removal - 1992-93 1.8L engine



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Fig. Fig. 10: Camshaft and related parts - 1992-93 1.8L engine



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Fig. Fig. 11: Camshaft and related parts - 2.4L engine

  1. Label and disconnect the spark plug cables.
  2.  
  3. On the 1.8L engine, remove the distributor assembly.
  4.  
  5. Remove the rocker cover and the timing belt.
  6.  
  7. Remove the camshaft sprocket retainer bolt while holding shaft stationary with appropriate spanner wrench. Remove the sprocket from the shaft.
  8.  
  9. Remove the camshaft oil seal.
  10.  
  11. Install lash adjuster retainers on the 2.4L engine. Remove both rocker arm shaft assemblies from the head. Do not disassembly rocker arms and rocker arm shaft assemblies.
  12.  
  13. Remove the camshaft from the cylinder.
  14.  
  15. Inspect the bearing journals on the camshaft, cylinder head, and bearing caps.
  16.  

To install:
  1. Lubricate the camshaft journals and camshaft with clean engine oil and install the camshaft in the cylinder head.
  2.  
  3. Install the rocker arm and shaft assemblies. On the 1.8L engine, tighten the rocker arm shaft retainer bolts to 21-25 ft. lbs. (29-35 Nm). On 2.4L engine, tighten the rocker arm, bearing caps and shaft assembly to 14 ft. lbs. (20 Nm).
  4.  
  5. Remove the lash adjuster retainers. Install new camshaft oil seal.
  6.  
  7. Install camshaft sprocket and retainer bolt torquing to 65 ft. lbs. (90 Nm).
  8.  
  9. Install the timing belt.
  10.  
  11. On the 1.8L engine, install the distributor.
  12.  
  13. On the 1.8L engine, check the valve lash adjustment using specifications for a cold engine. Install the rocker cover.
  14.  
  15. Connect the spark plug cables.
  16.  
  17. Install the breather hose and connect the PCV hose.
  18.  
  19. Connect the air flow sensor connector and install the air cleaner case cover.
  20.  
  21. On the 1.8L engine, install the battery and battery cover.
  22.  
  23. Connect the negative battery cable. Run the engine at idle until normal operating temperature is reached. Check idle speed and ignition timing and adjust as required.
  24.  

 
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