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Engine Speed Sensing Power Steering — Drive Belt (K8 DOHC)

N-52spec table

K8 DOHC engine drive belt. Routing includes idle pulley and water pump pulley.

DRIVE BELT (K8 DOHC)

Inspection

Drive belt inspection

  1. 1
    Check the drive belt for wear, cracks, and fraying. Replace as necessary.
  2. 2
    Verify that the drive belts are correctly mounted on the pulleys.
    Belt-routing diagram (K8 DOHC) showing belt around P/S OIL PUMP PULLEY, WATER PUMP PULLEY, CRANK SHAFT PULLEY and IDLE PULLEY, with an arrow marking the deflection check point at the top belt span.
  3. 3
    Check the drive belt deflection when the engine is cold, or at least 30 minutes after the engine has stopped. Apply moderate pressure (98 N {10 kgf, 22 lbf}) midway between the specified pulleys.
  4. 4
    If the deflection is not within specification, adjust it.

Deflection

Deflection mm{in}

6.0-7.0 {0.24-0.27}
Used7.0-8.0 {0.28-0.31}
Limit9.0 {0.35}

Drive belt tension check

  1. 1
    Belt tension can be checked in place of belt deflection. Check the drive belt tension when the engine is cold, or at least 30 minutes after the engine has stopped. Using the SST, check the belt tension between any two pulleys.
    Belt-tension gauge SST 49 9200 020 placed on the belt span, shown WHEN MEASURED and WHEN SET.
  2. 2
    If the tension is not within specification, adjust it.

Tension

Tension N{kgf·lbf}

540-686 {55-70, 130-154}
Used392-539 {40-55, 88-121}
Limit343 {35, 77}

Adjustment

Drive belt adjustment

  1. 1
    Loosen locknut (A). Turn adjusting bolt (B) to adjust the belt to the specified deflection and tension.
    Adjustment diagram: belt around P/S OIL PUMP PULLEY, WATER PUMP PULLEY, CRANK SHAFT PULLEY and IDLE PULLEY, with an arrow at the deflection point and lettered callouts A (locknut) and B (adjusting bolt) on the idle pulley adjuster.
  2. 2
    Tighten locknut (A) to the specified torques.
Tightening torque - Nut A
314 - 451N·m

Replacement

Drive belt replacement

  1. 1
    Remove the alternator and A/C drive belt. (Refer to body electrical troubleshooting manual, section G.)
    Replacement diagram: belt around P/S OIL PUMP PULLEY, WATER PUMP PULLEY, CRANK SHAFT PULLEY and IDLE PULLEY, arrow at the belt span and lettered callouts A (locknut) and B (adjusting bolt).
  2. 2
    Loosen locknut (A).
  3. 3
    Turn adjusting bolt (B) to release the belt tension.
  4. 4
    Remove the belt.
  5. 5
    Install a new P/S drive belt and adjust the tension and deflection. (Refer to above for adjustment.)
  6. 6
    Install A/C drive belt and adjust the tension and deflection. (Refer to body electrical troubleshooting manual, section G.)
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See also

body electrical troubleshooting manual section G

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