Manual Transaxle Unit (For Hatchback) Inspection

Drivetrain. Yaris. Ncp93, 131

  1. INSPECT NO. 3 SYNCHRONIZER RING

  2. INSPECT NO. 3 TRANSMISSION HUB SLEEVE

  3. INSPECT 5TH GEAR

  4. INSPECT REVERSE IDLER GEAR SUB-ASSEMBLY

Manual Transaxle Unit (For Hatchback) -- Inspection



1. INSPECT NO. 3 SYNCHRONIZER RING


Yaris. Ncp93, 131
  1. Check for wear and damage.

  1. Coat the 5th gear cone with gear oil.

  1. Turn the No. 3 synchronizer ring in one direction while pushing it against the 5th gear cone.

  1. Check that the ring locks.
    If the No. 3 synchronizer ring does not lock, replace the No. 3 synchronizer ring.



    Yaris. Ncp93, 131
  1. Using a feeler gauge, measure the clearance between the No. 3 synchronizer ring back and the gear spline end.

    Minimum clearance:
    0.75 mm (0.0295 in.)
    If the clearance is less than the minimum, replace the No. 3 synchronizer ring.


2. INSPECT NO. 3 TRANSMISSION HUB SLEEVE


Yaris. Ncp93, 131
  1. Check the sliding condition between No. 3 transmission hub sleeve and No. 3 transmission clutch hub.

  1. Check that the edges of the No. 3 transmission hub sleeve spline gear are not worn down.



    Yaris. Ncp93, 131.C50 Manual Transmission Transaxle.Manual Transaxle System (For Sedan).Manual Transaxle Unit (For Hatchback)  Inspection
  1. Using a vernier caliper, measure the width of the No. 3 transmission hub sleeve groove (A) and the thickness of the claw part on the No. 3 gear shift fork (B), and calculate the clearance.

    Text in Illustration
    *a
    Clearance = (A - B)
    Standard clearance (A - B):
    0.3 to 0.5 mm (0.0118 to 0.00197 in.)
    If the clearance exceeds the standard, replace No. 3 transmission hub sleeve and No. 3 gear shift fork.


3. INSPECT 5TH GEAR


Yaris. Ncp93, 131
  1. Using a caliper gauge, measure the inside diameter of the 5th gear.

    Standard inside diameter:
    29.915 to 29.931 mm (1.1778 to 1.1784 in.)
    Maximum inside diameter:
    29.931 mm (1.1784 in.)
    If the inside diameter exceeds the maximum, replace the 5th gear.


4. INSPECT REVERSE IDLER GEAR SUB-ASSEMBLY


Yaris. Ncp93, 131.C50 Manual Transmission Transaxle.Manual Transaxle System (For Sedan).Manual Transaxle Unit (For Hatchback)  Inspection
  1. Using a caliper gauge, inspect the reverse idle gear sub-assembly.

    Standard inside diameter:
    18.040 to 18.058 mm (0.710 to 0.711 in.)
    Maximum inside diameter:
    18.058 mm (0.711 in.)
    If the inside diameter exceeds the maximum, replace the reverse idler gear sub-assembly.
  1. Using a micrometer, inspect the reverse idler gear shaft as shown in the illustration.

    Standard outer diameter:
    17.966 to 17.984 mm (0.707 to 0.708 in.)
    Minimum outer diameter:
    17.966 mm (0.707 in.)
    If the outer diameter is less than the minimum, replace the reverse idler gear shaft.