CUMMINS N14 Spezifikationen PDF herunterladen (Seite 385)

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Water Pump and Idler Assembly - General Informaton

The water pump for the N14 engines is a centrifugal-type vane pump with a stamped steel shrouded impeller. The

shrouded impeller increases the pump’s performance and reduces thrust loading. The water pump is belt driven

from the accessory drive pulley. Belt tension is controlled by an adjustable idler pulley. The two non-sealed ball

bearings are lubricated when assembled, with an adequate amount of grease for the entire service life of the pump.

Grease is contained in the assembly by two oil seals not integrated to the bearings. A unitized water seal/seat

is pressed into the pump body and onto the impeller shaft. It is a mechanical face shield which seals the coolant

in the pump while allowing the shaft to rotate.

The water pump idler assembly mounts directly to the water pump and uses a non-sealed bearing and an oil seal.

The bearing is greased during assembly and a press-on cover and o-ring are used to seal the unit from dirt.

The N14 water pump is different from past NT engine water pumps in that it incorporates an internal coolant return

passage from the oil cooler. It is important that only N14 water pumps are installed onto N14 engines. Installation

of earlier model water pumps without this coolant return passage will damage the N14 engine.

Cooling System Water Pump and Idler Assembly - General Informaton

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Kommentare zu diesen Handbüchern

Jesus Morales 03 Apr 2025 | 23:07:31

Perfect..

CUMMINS N14 Spezifikationen Seite 385

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