The valve adjustment of multi-cylinder engines is generally adjusted in two adjustments. The method is: for a general 4-cylinder engine, the ignition sequence is 1-3-4-2, first align the top dead center mark of cylinder 1, and then adjust the intake and discharge of cylinder 1. , 2 cylinders in, 3 rows. Align the top dead…
One. The connecting hose between the air flow meter and the throttle body is not sealed. The vane-type air flow meter integrates the functions of the fuel pump switch, air temperature sensor and CO adjustment. Therefore, a good seal for the connection of the air flow meter and the throttle body is a necessary condition…
1. Oxygen sensor The location is on the exhaust pipe, and the oxygen sensor is faulty, so that the ECU cannot know whether the amount of gasoline injected is correct, and the concentration of the mixer is either too rich or too lean, and the combustion is insufficient, reducing engine power and increasing emission pollution.…
The cylinder gasket is mainly used to ensure the sealing between the cylinder block and the cylinder head joint surface to prevent air leakage and water leakage. Cylinder head gasket is in direct contact with high temperature and high pressure gas, so it is easy to be ablated during use, especially around the cylinder mouth…
1 Aikelan-DCU jumper schematic diagram 1. Physical jumper diagram 2. Schematic diagram of jumper wires DCU power supply + 4M pin, ground 4L pin, ignition J1 pin, diagnostic CANH-2A pin, and diagnostic CANL-1A pin. 3. DCU appearance diagram 2 Bosch DNOx2.0-DCU jumper schematic diagram 1. Physical jumper diagram 2. Schematic diagram of jumper…
Engineers are working to improve the fuel efficiency of heavy-duty diesel engines while minimizing pollution to reduce energy consumption and ensure the sustainable development of these industries. To this end, researchers at the U.S. Department of Energy (DOE) Argonne National Laboratory in Leman, Illinois, collaborated with Caterpillar. Using Argonne’s high-performance computing resources, researchers have developed…
Trouble phenomenon: A Zhongtong LCK6125 bus was equipped with a Weichai WP10.360 diesel engine. The throttle failed during driving, the idle speed was increased to 1100r/min, and it entered the Limphome state. Troubleshooting: When the idling speed is 1100r/min, most of the faults are caused by the electronic throttle or the throttle circuit. Connect the…
According to the requirements of current regulations, when a vehicle breaks down, Euro 5 and Euro 6 models will have significantly different performance. The National V model will usually not have the torque limit until 36 hours after the vehicle fails, and the speed limit will not appear. The requirements for new Euro VI vehicles…
Case 1 Trouble symptoms: The starter and the engine both have normal starting speeds, but they do not catch fire; or sometimes they can catch fire after many long periods of starting. Cause: There is air in the fuel line. Nature of failure: mechanical failure. Treatment method: exhaust air from the fuel line. Failure analysis:…
This set of tools includes, injector nozzle tightening cap removal tool, 3126B valve plate bolt screwdriver, Multi-function screwdriver handle, 6 types of screw heads, long and short screw rods, long and short screw rods, flexible screw rods, labor-saving wrenches. Injector nozzle tight cap removal tool It is suitable for the removal of the nozzle…