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6BT aftermarket vehicle engine lub oil pump 4935792

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What is a lube oil pump?

The oil pump in an internal combustion engine circulates engine oil under pressure to the rotating bearings, the sliding pistons and the camshaft of the engine. This lubricates the bearings, allows the use of higher-capacity fluid bearings and also assists in cooling the engine.

As well as its primary purpose for lubrication, pressurized oil is increasingly used as a hydraulic fluid to power small actuators. One of the first notable uses in this way was for hydraulic tappets in camshaft and valve actuation. Increasingly common recent uses may include the tensioner for a timing belt or variators for variable valve timing systems.

Common Oil Pump Failure Symptoms

Low oil pressure. A bad oil pump will lose the ability to properly pump oil through your system. This will result in low oil pressure that could lead to further vehicle damage.
Increased engine operating temperature. Oil reduces the friction on the parts in your vehicle, which in turn keeps temperatures regulated while the vehicle is in operation. When the flow of engine oil is reduced, the parts don't remain properly lubricated and thus heat up. Increased friction leads to increased temperatures and possibly more problems down the road.
Noise. Your vehicles hydraulic lifters are an important part of your engine's operation and it is important that they are adequately lubricated. When your engine is working properly these lifters are virtually silent, but when the flow of oil is cut off to the lifters they begin to make noise and wear unevenly. It is extremely expensive to have lifters replaced and extremely important they are properly lubricated.

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