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How to tell if your Cummins water pump is going bad?

How to tell if your Cummins water pump is going bad?

Any sign of corrosion, including discoloring and a “rough” appearance to the edges of the water pump housing, are a sign that things may be going badly. If you experience any one of these 5 symptoms and need to replace the water pump, be sure to get an OEM quality replacement like one of GMB’s heavy duty water pumps.

Where do you find weep hole on Cummins water pump?

The coolant will “weep” from this location, which is generally found on the underside of the pump housing (when installed). Although leakage marks from the weep hole do not always mean that the water pump has failed, it is typically a good indicator for shaft seal wear and is the easiest way to visually verify that a water pump is functioning.

Where does the coolant come from on a Cummins water pump?

This slow leakage originates from coolant that has passed through the rotating shaft seal. The coolant will “weep” from this location, which is generally found on the underside of the pump housing (when installed).

What causes a Cummins water pump to explode?

The introduction of air to the cooling system will often mean that the higher pressure created by the water pump as it moves the coolant around creates bubbles (“vapor cavities”) in the liquid. These then collapse with small explosions, which can pockmark metal.

What are the signs of a Cummins water pump failure?

Few diesel engine noises outside of their standard rumble and occasional turbo whine will be heard in the cab, so it’s imperative to get someone to listen to the engine outside if failure is suspected. 5. Corrosion Inside Pump Housing Less common, but no less telling, are signs of corrosion.

The coolant will “weep” from this location, which is generally found on the underside of the pump housing (when installed). Although leakage marks from the weep hole do not always mean that the water pump has failed, it is typically a good indicator for shaft seal wear and is the easiest way to visually verify that a water pump is functioning.

This slow leakage originates from coolant that has passed through the rotating shaft seal. The coolant will “weep” from this location, which is generally found on the underside of the pump housing (when installed).

What happens if the coolant pump on a diesel engine fails?

Few things are as devastating to a diesel engine’s performance as the sudden breakdown of the coolant pump. Water pump failure can quickly lead to many other problems, all of which are costly to repair.

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Ruth Doyle