Valve, Valve Guide Inspection
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 Mazda 6, 2007 Mazda 6, 2006 Mazda 6, 2005 Mazda 6, and 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Measure the stem diameter of each valve in X and Y directions at the three points (A, B, and C) as indicated in the figure.
- If not as specified, replace the valve.
Standard Diameter
IN: 5.975-5.995 mm {0.2352-0.2360 in}
EX: 5.950-5.970 mm {0.2343-0.2350 in}
- If not as specified, replace the valve.
- Measure the inner diameter of each valve guide in X and Y directions at the three points (A, B, and C) as indicated in the figure.
- Calculate the valve stem to guide clearance by subtracting the outer diameter of the valve stem from the inner diameter of the corresponding valve guide.
- If not as specified, replace the valve and/or the valve guide.
Standard Clearance
IN: 0.020-0.069 mm {0.0008-0.0027 in}
EX: 0.045-0.094 mm {0.0018-0.0037 in}