GS 400 V8-4.0L (1UZ-FE) (1999)
2. INSPECT IDLER PULLEYS
a. Visually check the seal portion of the idler pulley for oil leakage.
If leakage is found, replace the idler pulley.
b. Check that the idler pulley turns smoothly.
If necessary, replace the idler pulley.
3. INSPECT TIMING BELT TENSIONER
a. Visually check the seal portion of the tensioner for oil leakage.
HINT: If there is only the faintest trace of oil on the seal on the pushrod side, the tensioner is all right.
If leakage is found, replace the tensioner.
b. Hold the tensioner with both hands and push the push rod strongly as shown to check that it doesn't move.
If the push rod moves, replace the tensioner.
NOTICE: Never hold the tensioner push rod facing downward.
c. Measure the protrusion of the push rod from the housing end.
Protrusion: 10.5 - 11.5 mm (0.413 - 0.453 inch)
If the protrusion is not as specified, replace the tensioner.
4. INSPECT WATER PUMP
INSTALLATION