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2. Mercury KG-7Q Super 10 Hurricane - Wikipedia

   en.wikipedia.org/wiki/Mercury_KG-7Q_Super_10...

   Essentially, it boasted a significantly slimmer pointed gear case that housed an integrated rubber rotex water pump and forward only 1:1 gears along with the necessary bearings. After a few months of use, Mercury found that the average race boat's transom would not elevate the standard driveshaft housing and quicksilver gear case high enough ...

3. Oil pump (internal combustion engine) - Wikipedia

   en.wikipedia.org/wiki/Oil_pump_(internal...

   The type of pump used varies. Gear pumps [1] [2] trochoid pumps [3] and vane pumps [a] are all commonly used. Plunger pumps have been used in the past, but these are now only used rarely, for small engines. To avoid the need for priming, the pump is always mounted low-down, either submerged or around the level of the oil in the sump. A short ...

4. Outboard motor - Wikipedia

   en.wikipedia.org/wiki/Outboard_motor

   Mercury Marine, Mercury Racing, Tohatsu, Yamaha Marine, Nissan and Evinrude each developed computer-controlled direct-injected two-stroke engines. Each brand boasts a different method of DI. Fuel economy on both direct-injected and four-stroke outboards measures from a 10 percent to 80 percent improvement compared with conventional two-strokes ...

5. Gear pump - Wikipedia

   en.wikipedia.org/wiki/Gear_pump

   An exploded view of an external gear pump Fluid flow in an external gear pump Fluid flows from left to right in this internal gear pump. Oil pump from a scooter engine. A gear pump uses the meshing of gears to pump fluid by displacement. [1] They are one of the most common types of pumps for hydraulic fluid power applications. The gear pump was ...

6. Two-stroke engine - Wikipedia

   en.wikipedia.org/wiki/Two-stroke_engine

   Due to their high power-to-weight ratio and ability to be used in any orientation, two-stroke engines are common in handheld outdoor power tools including leaf blowers, chainsaws, and string trimmers. Two-stroke diesel engines are found mostly in large industrial and marine applications, as well as some trucks and heavy machinery.

7. Automatic lubrication - Wikipedia

   en.wikipedia.org/wiki/Automatic_lubrication

   The oil is contained in a reservoir that connects to a small oil pump in the engine, which needs to be periodically refilled. Oil injection pump on a Yamaha DX100- just behind the carburettor (visible on the left) It is the primary component of two-stroke automatic lubrication system. Amount of two-stroke oil injected by the pump depends on the ...