Drive Belt Tensioner: Testing and Inspection

Drive Belt Auto-Tensioner Inspection

1. Turn the ignition switch to ON (II), and make sure to turn the A/C switch off. Turn the ignition switch to LOCK (0).

2. Check the position of the auto-tensioner indicator (A). Start the engine, then check the position again with the engine idling. If the position of the indicator moves or fluctuates very much, replace the auto-tensioner Drive Belt Auto-Tensioner Replacement.





3. Check for abnormal noise from the tensioner pulley. If you hear abnormal noise, replace the tensioner pulley Drive Belt Auto-Tensioner Pulley Replacement.

4. Remove the drive belt Service and Repair.

5. Move the auto-tensioner within its limit with the wrench in the direction of the arrow. Check that the auto-tensioner moves smoothly and without any abnormal noise. If the auto-tensioner does not move smoothly or you hear abnormal noise, replace the auto-tensioner Drive Belt Auto-Tensioner Replacement.





6. Remove the auto-tensioner Drive Belt Auto-Tensioner Replacement.

7. Clamp the auto-tensioner (A) by using two 8 mm bolts (B) and a vise (C) as shown. Do not clamp the auto-tensioner itself.









8. Set the torque wrench (D) on the pulley bolt, and align it as shown.

9. Align the indicator (E) on the tensioner base with belt position mark (F) on the tensioner arm by using the torque wrench, and measure the torque. If the torque value is out of specification, replace the auto-tensioner Drive Belt Auto-Tensioner Replacement.

NOTE: If the indicator exceeds the belt position mark, recheck the torque.