Valve Adjustment: B2300
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Mazda Tribute, 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, and 2002 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
Valve train is a "set-for-life" system, consisting of maintenance-free, direct-acting mechanical bucket tappets. Tappets are selective and would only require replacement with cylinder head repair or replacement. See appropriate article in ENGINES.