The failure of the fuel-assisted car is manifested as

Determine the fault location of the fuel-assisted bicycle
The engine that cannot be carried due to the failure of the fuel-assisted bicycle driver often pulls (or burns) the bearing, burns the camshaft, pulls the cylinder, etc., is called a load vehicle. For fuel-assisted bicycles, it will be time-consuming and laborious if blindly disassembled and inspected. If the slotted hole on the positioning plate has reached the limit, and the positioning pin still cannot be inserted into the hole, it is necessary to reassemble the engaging lever assembly and change the position of the spline. After adjustment, tighten the two positioning plate fixing bolts and Engage the lever assembly retaining bolts.

The fuel-assisted bicycle should repeatedly pull the engaging lever assembly several times, and the movable claw coupling should slide freely. Observed from the inspection hole, the teeth of the two couplings at the joint position should be fully meshed and separated. The position should be fully disengaged. When the bearing is pulled (or burned), its wear-resistant alloy layer will fall off into powder and enter the oil in the oil pan, and a part of the oil will be pumped into the oil passage by the oil pump, and it will adhere to the filter when it passes through the filter. on the filter element. Therefore, when encountering a loaded vehicle, the cover of the oil filter should be opened first to check whether the surface of the filter element is attached to the falling alloy layer powder. If there is, it is the bearing (or burning).

Adjusting the gear oil pump transmission - when the pump transmission is disassembled and re-installed, first make the teeth of the movable claw coupling and the fixed claw coupling When the two fixing bolts of the positioning plate are loosened but not screwed off, insert the positioning pin on the engaging lever assembly into the hole on the rear side of the positioning plate (the side of the gear oil pump). Then check whether the connecting rod has axial clearance one by one. If there is no abnormality, open the main bearing cap one by one to check the main bearing shell and the burning condition. If there is no falling off alloy layer powder, the camshaft is burned or the cylinder is pulled. At this time, the thrust screw on the timing gear chamber cover should be withdrawn, and the camshaft should be pryed along the axial direction with a crowbar to see if it can move. If it cannot move, the camshaft is burned. For the cylinder failure.

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