Isuzu_Amigo_1998-2000

Valve Lash

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Adjustment



2.2L Engine

The 2.2L DOHC engine is equipped with hydraulic lash adjusters. No valve adjustment is necessary.

3.2L Engine

NOTE
Measure valve clearance with the engine cold.

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Remove the valve covers.
  4.  
  5. Check the valve clearance with the camshafts positioned as shown. Intake valve clearance should be 0.0091-0.0130 in. (0.2311-0.3302mm). Exhaust valve clearance should be 0.0098-0.0138 in. (0.2489-0.3505mm).

    Click image to see an enlarged view

    Fig. Cross section of the 3.2L DOHC cylinder head. Note the position of the camshaft lobe (1), adjustment shim (2) and the tappet (3)

  6.  
  7. If adjustment is required, replace the shims as follows:
    1. Step 1: Position special tool J-42689 on the edge of the tappet.
    2.  
    3. Step 2: Rotate the crankshaft until the maximum lift portion of the camshaft lobe contacts the upper edge of the special tool and presses the tappet down to create enough clearance between the adjustment shim and the camshaft for the shim to be removed.
    4.  
    5. Step 3: Replace shims as necessary to achieve correct valve clearance.
    6.  
    7. Step 4: Repeat for each valve to be adjusted.

      Click image to see an enlarged view

      Fig. Insert special tool J-42689 (1) and use the camshaft to press the tappet down-3.2L DOHC engine



      Click image to see an enlarged view

      Fig. Rotate the camshaft to depress the valve with special tool J-42689-3.2L DOHC engine

    8.  

  8.  
  9. Replace the valve covers. Tighten the bolts to 80 inch lbs. (9 Nm).
  10.  

 
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