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Cummins Engine Repair Kit for quicker repairs

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Cummins Engine Repair Kit for quicker repairs

Under the premise of ensuring the performance of the engine, maintenance work is particularly important, and the same is true for Cummins engines. Repair and maintenance and parts replacement can not only ensure the normal operation of the engine, but also reduce the possibility of failure, improve the reliability and service life of the whole machine. Cummins engine repair and maintenance process can be simply divided into two steps, check out the fault, use Cummins Engine Repair Kit to solve the problem.

1. Cummins engine starting, the crankshaft can not turn the mechanical fault diagnosis and repair

In the case of intact starting system, if the transmission is placed in the neutral position, press the starter switch, the starter motor has a ringing sound but the crankshaft can not rotate, then it is a mechanical failure.

The causes of the engine crankshaft not rotating and the diagnosis and repair methods are described below.

(1) Possible causes : ① Poor meshing of starter and flywheel teeth. The tooth ring and the starter gear will collide when starting the engine, causing damage to the teeth or wear on one side of the teeth. If more than three consecutive teeth are damaged or badly worn, the starter gear and ring teeth will be difficult to mesh. Crankshaft locking. Due to lubrication system failure or lack of oil caused by dry friction of the sliding bearings, so that the final hold crankshaft and can not start. ③ injection pump plunger stuck.

(2) Diagnosis and repair methods: ① If the flywheel has more than three consecutive teeth damage, and with the starter motor teeth are exactly opposite to each other, it will lead to the two gears can not be meshed. In this state, simply use a pry bar to pry the flywheel to an angle, and then press the starter button can be started smoothly. For the damaged flywheel teeth, generally can be used to repair welding. ② ring teeth of a single side of severe wear, the ring can be pressed down, front and rear end flip, and then mounted on the flywheel to use. ③ After checking the gear mesh is normal, start the flywheel does not rotate, it should be regarded as an internal engine failure, such as crankshaft hold, piston stick cylinder, clutch stall, etc., which should be further observed. Can first check the clutch has no damage to the stall, and then check the injection pump plunger whether the stall and the engine internal faults such as foreign objects.

2.Cummins engine can turn over when starting, but no smoke in the exhaust pipe diagnosis and treatment.

When starting the engine, no smoke is discharged from the exhaust pipe, and there is no outburst sound, generally diesel fuel does not enter the cylinder.

(1) Possible causes: ① no oil in the fuel tank. ② fuel filter, oil and water separator clogging. ③ low-pressure oil circuit does not supply oil. ③ Low-pressure oil circuit does not supply oil. ④ Injector pump does not pump oil. ⑤ Air in the oil circuit.

(2) Diagnosis and treatment methods: ① Check whether the injection pump flameout cable is back in place. ② Whether there is oil in the fuel tank, whether the fuel tank switch is open. ③ Whether the fastening bolts of the injector pump operating lever and drive connecting plate are off. ④ Loosen the bleeder screw on the injection pump and pump the oil with the hand pump. ⑤ Check the fuel pipe for air leakage or blockage. ⑥ Check whether the fuel filter and oil-water separator are clogged. ⑦ Start the engine and rotate it to check whether the oil pump pumps oil.

After checking and determining the cause of the Cummins engine failure, you can use the Cummins Engine Repair Kit for repair. The following points need to be noted during repair:

1.If the chain timing, we need to change the timing chain, tensioner, except but also machining, boring cylinder under the sleeve, grinding shaft, cold pressed catheter, but also need to replace the overhaul package, crank front oil seal, crank rear oil seal, camshaft oil seal, oil pumps, the more research valves, and so on, and sometimes need to replace the external parts, such as the clutch plate, in short, we need to be fitted with no certainty of the parts are changed to repair the engine to ensure that the Engine performance.

2.Cooling system part of the general mainly includes a water pump (pump leaf corrosion or water seals have seepage phenomenon), the engine up and down the water pipe, the big cycle of iron water pipe, the small cycle of hoses, throttle hose (there is aging inflation must be replaced), thermostat, etc.; Fuel part of the general mainly includes the injector nozzles up and down the oil ring, gasoline filters; Ignition part of the: high-pressure line whether there is swelling or leakage there is a replacement, the fire piston; fuel injector nozzle Upper and lower oil ring, gasoline filter.

3.Ignition part: whether the high-voltage line has swelling or leakage, if there is, replace the fire piston.

Keluo Construction Machinery is a strong manufacturer of new and used construction machinery, engines and parts, selling many specifications of diesel engines and engine parts, where you can buy affordable, high-quality and the most suitable Cummins engine repair kits, Cummins engine parts, diesel engines, etc. Our after-sales service is also in place, you can contact us at any time if you encounter problems. Place your order now, the products will be sent out within 3 to 5 days, if you need samples, you can also contact us, looking forward to cooperating with you.


KELUO is a company of machinery, engines, used equipment and spare parts founded by Hanhan in combination with HANJIU, Elephant in the industry.
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