Tundra 4WD V6-3.4L (5VZ-FE) (2004)
HINT:
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Apply SST (B) at a slight angle on the side marked with "9" or "7", at the position shown in the illustration.
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When SST (B) is inserted too deeply, it will get pinched by the shim. To prevent it from being stuck, insert it gently from the intake
side, at a slight angle.
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Using a small screwdriver and magnetic finger, remove the adjusting shim.
b. Determine the replacement adjusting shim size according to these Formula or Charts:
1. Using a micrometer, measure the thickness of the removed shim.
2. Calculate the thickness of a new shim so that the valve clearance comes within the specified value.
T .................................................................................................................................................................................. Thickness of used shim
A ............................................................................................................................................................................. Measured valve clearance
N .................................................................................................................................................................................. Thickness of new shim
3. Select a new shim with thickness as close as possible to the calculated values.
HINT: Shims are available in 17 sizes in increments of 0.050 mm (0.0020 inch), from 2.500 mm (0.0984 inch) to 3.300 mm (0.1299
inch).