Valve Clearance: Specifications

Valve Clearance

Use a feeler gauge to measure each valve's clearance and record its location.





NOTE: The number on the valve tappet only reflects the digits that follow the decimal.
For example,
a tappet with the number 0.650 has the thickness of 3.650 mm.

NOTE: A midrange clearance is the most desirable:
intake: 0.22 - 0.28 mm (0.008 - 0.011 inch)
exhaust: 0.27 - 0.33 mm (0.010 - 0.013 inch)

Select tappets using this formula: tappet thickness = measured clearance + the base tappet thickness - most desirable thickness.

Select the tappets and mark the installation location.

If any tappets do not measure within specifications, install new tappets in these locations.