B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
Valve: Testing and Inspection
1. Inspect each valve for the following. Replace or resurface as necessary.
(1) Damaged or bent stem
(2) Rough or damaged face.
(3) Damaged or unevenly worn stem tip.
2. Measure the valve stem diameter and replace the valve if necessary.
Standard Diameter
IN: 6.97-7.00 mm (0.2746-0.2754 in)
EX: 6.95-6.97 mm (0.2736-0.2744 in)
Oversize-0.38 mm (0.015 in)
IN: 7.36-7.38 mm (0.2896-0.2904 in)
EX: 7.33-7.35 mm (0.2886-0.2894 in)
Oversize-0.76 mm (0.030 in)
IN: 7.74-7.76 mm (0.3046-0.3054 in)
EX: 7.71-7.73 mm (0.3036-0.3044 in)
