• Mar 12, 2026 how to set timing chain marks on mazda b2600i 93 the timing cover. Crankshaft Sprocket Mark: Usually a dot, line, or notch indicating the Top Dead Center (TDC) position. Camshaft Sprocket Mark: Similarly marked, aligning with the crankshaft mark to set engine timing. Consult your vehicle’s service manual for exact locations and mark By Marvin Haley
