Mitsubishi Endeavor 2004-06

Accessory Drive Belts

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Adjustment



Alternator & Air Conditioning Compressor
  1. Loosen the tensioner pulley fixing nut.
  2.  
  3. With the tensioner pulley fixing nut temporarily tightened to 7-15 ft. lbs. (11-19 Nm), set the belt tension or defection amount to the standard value (shown in the accompanying table) using the adjusting bolt.
    NOTE
    Because the frequency depends on the belt material, confirm Part No. shown on the reverse of the belt.



    Click image to see an enlarged view

    Fig. Location of the tensioner pulley fixing nut and adjusting bolt



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    Fig. Belt tension specification table

  4.  
  5. After the proper specification is achieved, tighten the tension pulley fixing nut to 29-43 ft. lbs. (39-59 Nm).
  6.  

Power Steering Pump
  1. Loosen the tensioner pulley lock nut.
  2.  
  3. Adjust the belt tension to the standard value by turning the adjusting bolt. The tension will increase when turning the adjusting bolt clockwise, and decrease when turning counterclockwise.
  4.  
  5. Tighten the lock nut to 29-43 ft. lbs. (40-58 Nm).
  6.  
  7. Tighten the adjusting bolt to 35-53 inch lbs. (4-6 Nm).
  8.  
  9. Check the belt deflection amount and tension, and readjust if necessary after turning the crankshaft one or more rotations clockwise

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    Fig. Location of the power steering belt tensioner lock nut and adjusting bolt

  10.  

Drive Belt Routings





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Fig. Accessory belt routing-3.8L engine



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Fig. Accessory belt routing

Inspection



Inspect the drive belt for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately.

Alternator-A/C Compressor Belt

There are 3 methods to check the belt tension: using a scan tool, using a belt tension gauge or the measuring the belt deflection. Each method is outlined below.

Belt Deflection Method

Apply approximately 22 lbs. (98 N) of force to the middle of the drive belt between the pulleys (at the place indicated by the arrow) and check that the amount of deflection in within 0.33-0.42 in. (8.4-10.7mm). If not, adjust the belt, as outlined in this section.

Click image to see an enlarged view

Fig. Apply approximately 22 lbs. (98 N) of force to the middle of the drive belt between the pulleys (at the place indicated by the arrow) and check that the amount of deflection in within specifications

Belt Tension Gauge Method

Use a suitable belt tension gauge to check that the belt tension is within 110-154 lbs. (490-686 N). If not, adjust the belt, as outlined in this section.

Click image to see an enlarged view

Fig. Use a suitable belt tension gauge to check that the belt tension is within specifications

Scan Tool Method

NOTE
The scan tool method requires the use of the following special tools, or their equivalents:



MB991958: Scan Tool (M.U.T.-III Sub Assembly) [MB991824: Vehicle Communication Interface (V.C.I.)]
 
MB991668: Belt Tension Meter Set
 


WARNING
To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool

  1. Connect the special tool MB991668 to scan tool MB991958.
  2.  
  3. Connect the scan tool MB991958 to the data link connector.

    Click image to see an enlarged view

    Fig. Connecting the scan tool to the data link connector

  4.  
  5. Turn the ignition switch to the ON position, and select scan tool MB991958 "Belt Tension Measurement" from the menu screen.
    CAUTION
    The temperature of the surface of the belt should be as close as possible to underhood temperature. Do not let any contaminants such as water or oil get onto the microphone. If strong gusts of wind blow against the microphone or if there are any loud sources of noise nearby, the values measured by the microphone may not correspond to actual values. If the microphone is touching the belt while the measurement is being made, the values measured by the microphone may not correspond to actual values. Do not take the measurement while the vehicle-s engine is running.

  6.  
  7. Hold the special tool MB991668 (microphone) to the middle of the drive belt between the pulleys (at the place indicated by the arrow), about 10 - 20 mm (0.4 - 0.8 inch) away from the rear surface of the belt and so that it is perpendicular to the belt (within an angle of ± 15 degree angle).

    Click image to see an enlarged view

    Fig. Hold the special tool MB991668 (microphone) to the middle of the drive belt between the pulleys (arrow), about 0.4-0.8 inch away from the rear surface of the belt and so that it is perpendicular to the belt. Gently tap the middle of the belt between the pulleys (arrow) with your finger, and check the vibration frequency of the belt

  8.  
  9. Gently tap the middle of the belt between the pulleys (the place indicated by the arrow) with your finger as shown in the illustration, and check that the vibration frequency of the belt is within the standard value (shown on the accompanying table). If not, adjust the belt, as outlined in this section.

    Click image to see an enlarged view

    Fig. Check that the vibration frequency of the belt is within the standard value

  10.  

Power Steering Pump Belt
Belt Deflection Method

Apply approximately 22 lbs. (98 N) of force to the middle of the drive belt between the pulleys (at the place indicated by the arrow) and check that the amount of deflection in within the specifications shown on the accompanying table. If not, adjust the belt, as outlined in this section.

Click image to see an enlarged view

Fig. Apply approximately 22 lbs. (98 N) of force to the middle of the drive belt between the pulleys (arrow) and check that the amount of deflection in within specifications



Click image to see an enlarged view

Fig. Power steering belt deflection specifications

Belt Tension Gauge Method

Use a suitable belt tension gauge to check that the belt tension is within the specifications shown on the accompanying table.

Click image to see an enlarged view

Fig. Use a suitable belt tension gauge to check that the belt tension is within specifications



Click image to see an enlarged view

Fig. Power steering belt tension specifications

Scan Tool Method

NOTE
The scan tool method requires the use of the following special tools, or their equivalents:



MB991958: Scan Tool (M.U.T.-III Sub Assembly) [MB991824: Vehicle Communication Interface (V.C.I.)]
 
MB991668: Belt Tension Meter Set
 


WARNING
To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool

  1. Connect the special tool MB991668 to scan tool MB991958.
  2.  
  3. Connect the scan tool MB991958 to the data link connector.

    Click image to see an enlarged view

    Fig. Connecting the scan tool to the data link connector

  4.  
  5. Turn the ignition switch to the ON position, and select scan tool MB991958 "Belt Tension Measurement" from the menu screen.
    CAUTION
    The temperature of the surface of the belt should be as close as possible to underhood temperature. Do not let any contaminants such as water or oil get onto the microphone. If strong gusts of wind blow against the microphone or if there are any loud sources of noise nearby, the values measured by the microphone may not correspond to actual values. If the microphone is touching the belt while the measurement is being made, the values measured by the microphone may not correspond to actual values. Do not take the measurement while the vehicle-s engine is running.

  6.  
  7. Hold the special tool MB991668 (microphone) near the center of the belt between the pulleys (at the place indicated by the arrow), about 10 - 20 mm (0.4 - 0.8 inch) away from the rear surface of the belt and so that it is perpendicular to the belt (within an angle of ± 15 degree angle).

    Click image to see an enlarged view

    Fig. Hold the special tool MB991668 (microphone) to the center of the drive belt between the pulleys (arrow), about 0.4-0.8 inch away from the rear surface of the belt and so that it is perpendicular to the belt. Gently tap the middle of the belt between the pulleys (arrow) with your finger, and check the vibration frequency of the belt

  8.  
  9. Gently tap the middle of the belt between the pulleys (the place indicated by the arrow) with your finger as shown in the illustration, and check that the vibration frequency of the belt is within the standard value (shown on the accompanying table). If not, adjust the belt, as outlined in this section.

    Click image to see an enlarged view

    Fig. Check that the vibration frequency of the belt is within the standard value

  10.  

Removal & Installation



  1. To remove the belt, loosen the tensioner pulley fixing nut or locknut, then remove the belt.

    Click image to see an enlarged view

    Fig. Accessory belt routing

  2.  
  3. Install the belt, carefully routing it as shown in the accompanying illustration.
  4.  
  5. Adjust the belt tension, as outlined earlier in this section and tighten the fixing bolt or lock nut and adjusting bolt as specified in the adjustment procedures.
  6.  

 
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