Timing Belt Inspection


  1. INSPECT TIMING BELT

  2. INSPECT NO. 1 TIMING BELT IDLER SUB-ASSEMBLY

  3. INSPECT IDLER TENSION SPRING

Timing Belt -- Inspection



1. INSPECT TIMING BELT
NOTICE:
  1. Do not bend, twist or turn the timing belt inside out.
  2. Do not allow the timing belt to come into contact with oil, water or steam.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Mechanical.Timing Belt.Timing Belt Inspection

  1. If there is premature parting:

    1. Check for proper installation.
    2. Check the timing cover gasket for damage and proper installation.

  1. If the belt teeth are cracked or damaged, check if either camshaft is locked.

  1. If there is noticeable wear or cracks on the belt face, check if there are nicks on the side of the idler pulley lock and water pump.

  1. If there is wear or damage to only one side of the belt, check the belt guide and the alignment of each pulley.

  1. If there is noticeable wear on the belt teeth:

    1. Check the timing cover for damage.
    2. Check that the gasket has been installed correctly.
    3. Check for foreign matter on the pulley teeth.
    If necessary, replace the timing belt.


2. INSPECT NO. 1 TIMING BELT IDLER SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Mechanical.Timing Belt.Timing Belt Inspection

  1. Visually check the seal portion of the No. 1 timing belt idler for oil leakage. If leakage is found, replace the No. 1 timing belt idler.

  1. Check that the No. 1 timing belt idler turns smoothly. If necessary, replace the No. 1 timing belt idler sub-assembly.



3. INSPECT IDLER TENSION SPRING


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Mechanical.Timing Belt.Timing Belt Inspection

  1. Measure the free length of the tension spring.

    Standard free length:
    44.4 to 45.4 mm (1.748 to 1.787 in.)
    If the free length is not as specified, replace the tension spring.

  1. Measure the tension of the tension spring at the specified installed length.

    Standard tension:
    53 to 59 N (5.42 to 5.98 kgf, 11.9 to 13.2 lbf) at 52.1 mm (2.051 in.)