Remove the pump timing mark mess how to do?

If, for any reason, the timing mark is lost or the pump is removed at the end of the marking process, the most accurate method is to disassemble the water tank, the bellows, and open the timing gear cover. Then, re-mark the components according to the "X, Y, Z" marks on each transmission gear assembly. However, this approach is time-consuming, labor-intensive, and rarely used unless absolutely necessary. Another alternative method involves the following steps: 1. Before the first cylinder reaches top dead center (TDC) during the compression stroke, locate the 14°–16° before TDC position on the crankshaft pulley. This is marked with a line engraved on the pulley, where the symbol "I" represents TDC, and the symbol "II" indicates 14°–16° before TDC. Refer to Figure (217) for visual guidance. 2. Install the oil pump flange onto the engine and draw a line on the flange corresponding to the arrow visible through the inspection window. This will transfer the arrow's position from the engine to the flange. Reinstall the flange gear back into the pump. 3. Mount the pre-stroke measuring device and locate the pre-stroke endpoint of the first cylinder (cylinder B) based on the oil pump’s operating cycle. When the pre-stroke endpoint is identified, mark the transmission gear of the oil pump at that point. This ensures that the mark on the pump gear aligns with the beginning of fuel injection for the first cylinder. 4. Once the helical gear is aligned with the initial crankshaft mark, install the pump so that the mark on the engine’s viewing window matches the arrow on the flange. This method is more efficient and less invasive than completely disassembling the system, making it a preferred choice in many situations. It requires careful attention to detail and proper alignment to ensure correct timing. Always double-check the markings after installation to avoid misalignment issues.

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