Caution / Notice / Hint
WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
There are two cylinder head assembly shapes. Valve spring type A can only be used with cylinder head type A and valve spring type B can only be used with cylinder head type B. The combination cannot be changed.
HINT:
- The standard protrusion amount (A) of the valve guide bush determines whether the cylinder head is type A or B.STANDARD PROTRUSION HEIGHT (A)
Type Specified Condition Cylinder Head Type A 14.3 to 14.7 mm (0.563 to 0.579 in.) Cylinder Head Type B 15.8 to 16.2 mm (0.622 to 0.638 in.) - The shape of the inner compression spring determines whether the valve spring type is A or B.
*A Valve Spring Type A *B Valve Spring Type B *1 No. 1 Valve Rocker Arm Sub-assembly *2 Valve Spring Retainer *3 Inner Compression Spring *a Valve Spring Retainer Outer Diameter *b No. 1 Valve Rocker Arm Roller Width - The No. 1 valve rocker arm, inner compression spring and valve spring retainer have two different shapes and are not interchangeable.
Valve Spring Type No. 1 Valve Rocker Arm Roller Width Valve Spring Retainer Outer Diameter Inner 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 (0.744 in.) Taper