Caution / Notice / Hint

WARNING: This page is about a different car, the 2016 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

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.

*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