1. First, the connecting mechanism between the generator exhaust brake butterfly valve and the power cylinder is loose. Although the power cylinder is working, it cannot block the exhaust pipe.
2. Second, the generator exhaust brake button valve is faulty. An air leak or pipeline rupture prevents the butterfly valve power cylinder from working, so the butterfly valve spool cannot rotate and blocks the exhaust pipe. The oil stop cylinder has no air ventilation or air leakage, and the oil level is always at a high level. certain position, so that the motor cannot stop.
3. Finally, the exhaust brake butterfly valve power cylinder failed. Does not work, air leaks Although the exhaust brake button valve is actuated, the piston stroke is not large in raison of air leakage in the power cylinder, and the exhaust pipe cannot be blocked, so the engine cannot be stopped.
The range extender of electric vehicles ignites unsteadily
Fault phenomenon
① Pulling the starting rope is normal, but the gasoline engine cannot start and there is no reaction.
② Black smoke comes from the exhaust, but the gasoline engine cannot catch fire.
③ The carburetor continues to leak.
④ If it cannot start, please unscrew the spark plug. The electrode is wet and there is a strong smell of gasoline.
⑤ When the starting device is pulled by hand or started by an electric motor, the gasoline engine can easily run at any time. There is still very little resistance until the compression ends.
⑥ The gasoline engine has no back pressure and is difficult to ignite andto start, but there is sparking in the exhaust pipe.
⑦ When the gasoline engine starts, there is a reversal when the carburetor turns against it.
(2) Cause of failure
① The ignition switch is short-circuited to ground (electric starter).
② The spark plug is damaged; the spark plug electrode gap does not meet standard requirements; the spark plug is dirty, damp and has poor insulation.
③ The high voltage wire falls or is poorly insulated, causing a leak; the igniter fails or is damaged by a fault.
Chongqing Range Extender 1.png
④ There is no fuel in the fuel tank; the oil switch is not on; The fuel tank cap vent hole is blocked.
⑤ The fuel filter is clogged; fuel flow in the oil pipe is blocked; the triangular oil needle is stuck and ne can’t move; there is water in the carburetor float chamber (including the main oil passage; nozzle, main metering hole, idle speed The metering hole, etc.) may be blocked; the triangular needle is not closed properly; the float is damaged or the oil level is set too high and the fuel injection is seriously worn; the cross section is increased.
⑥ The spark plug gap is too small, the spark plug gap is too small, and the spark plug is damaged.
⑦ The ignition time is too early or too late.
⑧ The head gasket is damaged.
⑨ The cylinder and piston rings are badly worn; piston rings (air rings, oil rings) lose elasticity or piston rings are damaged; the piston is badly worn or the piston is damaged.
(3) Troubleshooting
① Whether the electric starter can be startedby hand, this indicates that the ignition switch is shorted to ground or defective.
② Check the spark of the spark plug, remove the spark plug, insert the spark plug into the spark plug cap, make the metal shell of the spark plug comes into contact with the metal parts of the body, pull the start button. rope repeatedly, observe the spark plug electrode beating, blue and white sparks are fair. Often no sparks or red sparks are false. If the spark plug does not blow, you can check the igniter and high voltage wire for damage. Remove the high voltage cover, insert a small piece of metal wire into the high voltage line, and keep a space of about 0.7mm between the metal wire and the metal parts of the gasoline engine. If there is no ignition, the igniter is defective.
③ Check if thespark plug porcelain is cracked and the center electrode is corroded or damaged. If so, replace the spark plug; If the spark plug is too dirty, clean it with gasoline, adjust the electrode gap to the specified value, and then dry it for later use. Check if the high voltage wire and spark plug connector are securely connected and replace them with new ones if necessary.
④ Check whether there is gasoline in the fuel tank, then carefully check whether the fuel switch is open, then clear the exhaust hole of the fuel tank to allow the fuel tank to communicate with the atmosphere to create a pressure difference.
⑤ Remove the connecting pipe between the carburetor and the fuel tank, and the fuel should flow out. If no fuel comes out, remove the fuel filter and clean it; if the oil pipe is emptye, check the carburetor oil supply and use a screwdriver to loosen the carburetor oil drain screw. If the oil level is too low, the triangular oil needle may become stuck. Remove the carburetor and see if it can move and if there is water or dirt in the float chamber. If the carburetor oil level is too high, the triangular oil needle may not be closed properly, the float may be broken, or the oil level may be set too high.
1. Unscrew the spark plug and determine if there is a fire and carbon deposits.
2. Dry the spark plug and install it, start the range extender, and if it still doesn't catch fire, remove the spark plug and see if there is any oil on the spark plug. oil, clean the carburetor or replace it. After cleaning, dry with an air gun.
3. Open the air filter cover and check if the door switchair pressure is normal.
4. Return to factory for repair.