1. What causes injector failure on the 855 Cummins Engines?These are the possible factors that cause injector failure;a. Worn injector tip or other components b. Engine overheating c. Contaminated fueld. Inadequate maintenance2. What are the signs of failing injectors on the Cummins 855With the [...]

1. What are the symptoms of worn connecting rod bearings in the Cummins NH 220?The symptoms are a knocking sound from the engine, low oil pressure, metal shavings in the oil, vibration of the engine, and poor engine performance.2. When should the connecting rod bearing be replaced in the Cummins NH [...]

1. How often should I replace the fuel filter on Cummins 4B?The fuel filter should be replaced after 250 to 500 of operation, this depends on the operation of the engine.For more information on this, check the service manual.2. What are the symptoms of a clogged fuel filter?a. Hard startingb. Rough [...]

1. Can the Cummins 6B cracked exhaust manifold be welded?Yes, you can repair the manifold by welding it, only if the damage is minimal, but if the cracks are big, then you need to replace the exhaust manifold.Replacing the exhaust manifold will make it durable.2. Is the exhaust manifold crack [...]

1. How would you know if the rear oil seal is leaking on the ISB 4.5 Cummins engine?If you have a damaged rear oil seal, you will notice the following: oil dropping from the bell housing, oil spots under the application, clutch slippage, especially on manual transmission,n, and odor of oil [...]

1. What causes Cummins ISB 5.9 head gasket failure?a. Tear and wearb. Excessive cylinder pressure or boost pressurec. Incorrect torqued. Overheating2. Can I drive with a blown head gasket?It is not recommended to drive with a blown head gasket because it could cause damage to other engine [...]