Inspection (RX 300)
- Inspect timing belt for damaged teeth, cracking or oil contamination. Ensure idler pulleys rotate freely and are not leaking oil. Replace damaged components. Inspect water pump for leaks or worn out bearing.
- Inspect timing belt tensioner for signs of oil leakage. Replace timing belt tensioner if oil leakage exists. Hold timing belt tensioner body with push rod facing upward. Press rod against solid surface. Replace timing belt tensioner if push rod moves.
- Measure timing belt tensioner push rod protrusion from end of rod to edge of timing belt tensioner housing. See Figure. Replace timing belt tensioner if distance is not .394-.425" (10.01-10.8 mm).
CAUTION:
Never hold timing belt tensioner with push rod facing downward.