The Great Wall Saifu oil lamp is always on.

The Great Wall Saifu is equipped with a 49 14y engine, with only one oil sensing plug and one hydraulic tappet, and there is no need to adjust the valve clearance. The current situation should be that the bearing clearance is too large and the shaft needs to be ground and replaced. Another situation that can't be ignored is whether the teeth driving the oil pump on the camshaft are too worn and whether they slip when driving the oil pump. We have been in this situation before.