Carter Perkins engine is a diesel engine that is widely used in construction machinery, ships and generator sets. However, at high speeds, the Carter Perkins engine may experience a fire failure, which will have a serious impact on the normal operation of the equipment. This article will introduce in detail the diagnosis and elimination methods of the fire failure fault of the Carter Perkins engine when it is running at high speed.
First, the fault phenomenon.
When the Carter Perkins engine is running at high speed, the following fault phenomena may occur:
1.The engine speed is not stable, sometimes high and sometimes low;
2.The engine is noisy and vibrates strongly;
3.Abnormal increase in engine exhaust temperature;
4.The engine fault indicator lights up.
Second, the cause of the failure.
The causes of the failure of the Carter Perkins engine when operating at high speed may include the following:
1.Failure of the fuel supply system, such as fuel pump failure, fuel filter blockage, etc.;
2.Ignition system failure, such as excessive spark plug gap, ignition coil failure, etc.;
3.Improper adjustment of the valve clearance, resulting in poor valve closing;
4.Insufficient cylinder pressure, such as damage to the cylinder gasket, wear of the cylinder wall, etc.;
5.Engine control unit failure.
3. Fault diagnosis and elimination.
1.Check the oil supply system.
Start by inspecting the fuel supply system, including components such as fuel pumps, fuel filters, etc. If a fault is found, it needs to be replaced or cleaned in time. At the same time, check whether the fuel pressure is normal to ensure that the oil supply is stable.
2.Check the ignition system.
Next, check the ignition system, including components such as spark plugs and ignition coils. Check whether the spark plug gap is normal, and replace it in time if there is a problem; Check whether the ignition coil is faulty, and repair or replace it in time if there is a fault.
3.Check the valve clearance.
Adjust the valve clearance to the specified value to ensure that the valve closes tightly. Restart the engine and observe if the revs and noise are smooth.
4.Check the cylinder pressure.
If the problem persists after adjusting the valve clearance, check that the cylinder pressure is normal. The pressure of each cylinder can be measured using a cylinder pressure gauge to determine if there are problems such as worn cylinder walls or damaged cylinder gaskets. In case of failure, the corresponding parts need to be repaired or replaced.
5.Check the engine control unit.
If none of the above checks resolve the issue, check the engine control unit for faults. Fault codes can be read using a diagnostic instrument and repaired or replaced with parts according to the fault code prompts.
Fourth, case analysis.
A Carter Perkins engine had a fire failure during high-speed operation, and it was found that the oil supply system and ignition system were normal, and the valve clearance was properly adjusted, but the cylinder pressure was insufficient and the control unit was faulty. By replacing the cylinder head gasket and engine control unit, the engine shut-off fault was eliminated.
5. Summary. 
Fault diagnosis and elimination of fire failure when the Carter Perkins engine is running at high speed needs to be checked and eliminated one by one for possible causes. In the diagnostic process, it is necessary to be familiar with the structure and working principle of the engine, and to use appropriate tools and equipment for detection and diagnosis. At the same time, it is necessary to pay attention to safe operation to avoid the occurrence of safety accidents caused by improper operation.