Toyota 3S-GE Repair Manual page 71

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If there is noticeable wear on the belt teeth, check the
timing cover for damage and check that the gasket
has been installed correctly. Check for foreign materi-
al on the pulley teeth.
If necessary, replace the timing belt.
INSPECT IDLER PULLEYS
Check that the idler pulley turns smoothly.
If necessary, replace the idler pulley.
INSPECT TIMING BELT TENSIONER
Visually check tensioner for leakage.
HINT: A small trace of oil on the push rod seal is
permissible.
If leakage is found, replace the tensioner.
Hold the tensioner with both hands, and push the
push rod firmly against the floor or wall to check that
it doesn't move.
If push rod moves, replace the tensioner.
Measure the protrusion of the push rod from the
housing end.
Protrusion:
10.0 — 11.0 mm (0.394 — 0.433 in.)
If the protrusion is not as specified, replace the tensi-
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