There can be a variety of reasons why a Perkins engine stalls when it is in the idle position, and here are some possible causes and how to fix them:
1.Fuel system problems: Faulty components in the fuel system, such as fuel pumps, fuel lines, or injectors, can cause the fuel to be poor** or not injected properly, causing the engine to stall. Check the working condition of the fuel pump, fuel lines, and injectors to ensure that the fuel** is in good working order.
2.Circuit system problems: Faulty ignition coils, spark plugs and other components in the circuit system will cause the engine to fail to ignite normally. Check the working condition of the ignition coil and spark plug to ensure that the circuit system is normal.
3.Valve problems: Engine valves leak or improper opening, which can cause engine power to drop or stall. Check the working condition of the valve to ensure that the valve is well sealed and opened properly.
4.Improper idle speed adjustment: Improper idle speed adjustment will cause the engine speed to be unstable and easy to stall. Readjust the idle speed to keep the engine speed stable.
5.Engine overheating: The engine runs under high load for a long time, which can lead to overheating, which can cause the engine to stall. Check the working condition of the cooling system to ensure that the engine temperature is normal.
The above are the possible causes and solutions for the Perkins engine to stall when it is placed in the idle position, I hope it can help you. If the problem persists, it is recommended that you seek the help of a professional repairer.