Mazda Tribute 2001-06

Valve Lash (Clearance) Adjustment

Print

2.3L Engine




NOTE
Before removing the camshafts, measure the clearance of each valve at base circle, with the lobe pointed away from the tappet. Failure to measure all clearances prior to removing the camshafts will necessitate repeated removal and installation and wasted labor time.

  1. Use a feeler gauge to measure the clearance of each valve and record its location.
  2.  


NOTE
The number on the valve tappet only reflects the digits that follow the decimal. For example, a tappet with the number 0.650 has the thickness of 3.650 mm.


NOTE
A midrange clearance is the most desirable:



Intake: 0.22-0.28 mm (0.008-0.011 inch)
 
Exhaust: 0.27-0.33 mm (0.010-0.013 inch)
 

  1. Select tappets using this formula: tappet thickness = measured clearance + the base tappet thickness-most desirable thickness.
  2.  
  3. Select the tappets and mark the installation location.
  4.  
  5. If any tappets do not measure within specifications, install new tappets in these locations.
  6.  


NOTE
Before removing the camshafts, measure the clearance of each valve at base circle, with the lobe pointed away from the tappet. Failure to measure all clearances prior to removing the camshafts will necessitate repeated removal and installation and wasted labor time.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
    NOTE
    To deplete the backup power supply energy, disconnect the negative battery cable and wait at least one minute. Be sure to disconnect auxiliary batteries and power supplies, if equipped.

  4.  
  5. Remove the rocker cover.
  6.  
  7. Use a feeler gauge to measure the clearance of each valve and record its location.
    NOTE
    The number on the valve tappet only reflects the digits that follow the decimal. For example, a tappet with the number 0.650 has the thickness of 3.650 mm.


    NOTE
    A midrange clearance is the most desirable:



    Intake: 0.22-0.28 mm (0.008-0.011 inch)
     
    Exhaust: 0.27-0.33 mm (0.010-0.013 inch)
     

  8.  
  9. Select tappets using this formula: tappet thickness = measured clearance + the base tappet thickness-most desirable thickness.
  10.  
  11. Select the tappets and mark the installation location.
  12.  
  13. If any tappets do not measure within specifications, install new tappets in these locations.
  14.  

3.0L Engine



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Camshaft followers
     
    Hydraulic lash adjusters
     

  4.  


NOTE
Mark the position of the hydraulic lash adjusters to assure they are assembled in their original position

  1. Inspect the adjusters for scoring or uneven wear in the bore and replace them as required.
  2.  

To install:

  1. Install or connect the following:

    Hydraulic lash adjusters after lubricating them with clean engine oil
     
    Camshaft followers
     
    Negative battery cable
     

  2.  

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
    NOTE
    To deplete the backup power supply energy, disconnect the negative battery cable and wait at least one minute. Be sure to disconnect auxiliary batteries and power supplies, if equipped.

  4.  
  5. Remove or disconnect the following:
    NOTE
    Mark the position of the hydraulic lash adjusters to assure they are assembled in their original position



    Camshaft followers
     
    Hydraulic lash adjusters
     

  6.  
  7. Inspect the adjusters for scoring or uneven wear in the bore and replace them as required.
  8.  

To install:

  1. Install or connect the following:

    Hydraulic lash adjusters after lubricating them with clean engine oil
     
    Camshaft followers
     
    Negative battery cable
     

  2.  

 
label.common.footer.alt.autozoneLogo