Cummins Engine Overhaul Start-Up and Break-In Considerations

Engine overhaul refers to the restoration of engine performance through the replacement of parts and a series of complex processes and repair steps to restore the fit clearance of cylinders, pistons, crankshafts and other major components. Increasing wear and tear inside the engine leads to decreasing engine power performance, which in turn requires overhaul. Generally speaking, after the engine overhaul, the performance can be restored to about ninety percent, which can effectively extend the life of the product. After a Cummins engine repair, the following things need to be taken care of.

After engine overhaul, before starting the engine, fill water, oil, fuel, etc., according to the regulations (the drive shaft between the engine and transmission shall not be installed), and do all the preparatory work before starting according to the regulations and procedures.

Before starting, after the oil pump is filled with pilot oil, check whether the connection fastening of each part is normal. Close the manual throttle valve and observe the oil pressure gauge. After the oil pressure gauge has pressure indication, the throttle is put in the total speed position, open the manual throttle valve, start the engine, in this step need to pay attention to, in order to prevent damage to the starter, the engine should be less than 30 seconds of continuous starting time. If the engine does not start within 30 seconds the first time, wait 2 minutes before starting the engine the second time.

Check oil pressure and observe for fuel, oil, water and air leaks. It is important to note that oil of the grade specified by the original manufacturer of the engine should be used, and it should be certain that the radiator is in good condition, otherwise it will result in the restored engine being constantly at high temperatures during the break-in period, and the engine will be damaged; it should be certain that all of the discharge control components are clean and in working condition, and the filter cartridge should be replaced if necessary. Remove the muffler of the exhaust system, so that the abnormal noise can be heard; when the engine is running, check the following: whether the leakage of liquid, whether there is a strange noise, to detect the color and smell of the emissions, listen to the exhaust rattling, to detect whether the emissions are leaking, to detect whether the compression piping is leaking, to detect whether the vacuum line is leaking, to check the cylinder head and the cylinder block temperature, whether the mixture is too thick, whether the oil pressure is normal and so on, and so on; in addition, in the engine In addition, in the engine break-in period, absolutely do not overload work.

Cummins engine repair is a complex matter, if you still have doubts, you can go to the official website of Keluo Construction Machinery to seek help, our official website has a lot of professional knowledge about the engine and sells new and old original parts, where you can buy the most suitable products to meet your needs, if you have the intention to buy, or have other If you are interested in purchasing, or have any other questions, please feel free to contact us, our customer service will reply promptly.