Caution / Notice / Hint

HINT: 

• Perform "Inspection After Repair" after replacing the cylinder head sub-assembly.

  Refer to INITIALIZATION [12/2013 - 11/2016]

• Select the No. 1 valve rocker arm sub-assemblies, inner compression springs and valve spring retainers based on the identification mark on the cylinder head.
  Fig 1: Identifying No. 1 Rocker Arm Sub - Assemblies, Inner Compression Springs, Valve Springs Retainers By Identification Mark On Cylinder Head

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *A	Type A	*B	Type B
  *C	Cylinder Head RH	*D	Cylinder Head LH
  *a	Identification Mark	-	-

  Type	Identification Mark	Compression Spring Shape
  A	1 Hole	Straight
  B	2 Holes	Taper

• There are 2 types of No. 1 valve rocker arms, inner compression springs and valve spring retainers. The 2 types are not interchangeable.
  Fig 2: Identifying 2 Types Of No. 1 Valve Rocker Arms, Inner Compression Springs, & Valve Spring Retainers, Not Interchangeable.

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *A	Type A
  *B	Type B
  *1	No. 1 Valve Rocker Arm Sub-assembly
  *2	Valve Spring Retainer
  *3	Inner Compression Spring
  *a	Valve Spring Retainer Diameter
  *b	No. 1 Valve Rocker Arm Sub-assembly Roller Width

  Type	No. 1 ValveRocker Arm Sub-assembly Roller Width	Valve Spring Retainer Diameter	Compression Spring Shape
  A	10.7 mm (0.421 in.)	23.4 mm (0.921 in.)	Straight
  B	8.0 mm (0.315 in.)	18.9 mm (0.7441 in.)	Taper