Timing Belt Tensioner: Testing and Inspection

1. Check the auto tensioner for leaks and replace as necessary.
2. Check the rod end for wear or damage and replace as necessary.





3. Measure the rod protrusion. If it is out of specification, replace the auto tensioner.

Rod protrusion: 12 mm (0.47 inch)








4. Using a vise soft jaw, push in the auto tensioner rod. If the rod can be easily retracted, replace the auto tensioner. You should feel a fair amount of resistance when pushing the rod inch

CAUTION:
1) Clamp the auto tensioner in the vise so that it is level. Use soft jaws in the vise to avoid damaging the auto tensioner.
2) If the plug is at the bottom of the auto tensioner, insert a plain washer to prevent directly contacting the plug with the vise.