Characteristic of a wet-sump system: the oil pan under the engine block
A wet sump system (literally: wet carter system) is a four-stroke engine lubrication system that brings the lubricant oil into the carter (oil pan).
This has the advantage that only one oil pump is needed and therefore the construction is easier than with a dry sump system. The oil that has been lubricating and cooling in the engine has "regent" itself back into the oil pan. Because it is made of thin sheet steel or aluminum with cooling ribs, the oil is cooled by the bend wind. The oil leveling is easy with a wet sump system, because the oil dipstick fits into the oil pan.
There are also disadvantages: a higher engine block, less ground clearance and a carter pan that is vulnerable to rock stroke. Also, with some engines there is a risk that the crankshaft rises to foam at an excessive oil level, losing its lubricating properties. For fast cars, the oil can be pushed to one end of the oil pan by turning gears into bends, causing the oil pump to "dry" and lubrication. Therefore, these cars are sometimes used with a dry sump system. Motorcycles with wet-sumps have no problems in the curve; The motorcycle is completely in the bend, which keeps the oil running through the forces even in the carter. Due to the required ground clearance, ground engines usually have a dry sumps system.
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