Cassette motor

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A cartridge motor is a special design of the car - engine , interchangeability in the purposes faster all through an engine failure prone components are combined in a replaceable unit.

This cassette unit combines the cylinder block , cylinder head and crankshaft including bearings , connecting rods and pistons , as well as the primary drive gear , but without the oil pan. This unit is inserted into the gearbox with a multiple foot screw connection, which is expanded to include the oil pan and the output gear for the clutch . The accuracy of fit of the gear primary drive is brought about by means of dowel pins .

This type of construction offers - with great effort - advantages in racing operations in order to get the vehicle operational again in the shortest possible time in the event of engine damage. Disadvantages of this type of construction are the high mechanical processing effort for precisely fitting production with the partial surfaces and the noise behavior of the gear drives.

The best-known representatives of this design are the four-cylinder motorcycle engines from MV Agusta from the 1970s, and some types of Bugatti engines.

This type of construction is similar in approach to the previously practiced complete separation of engine and gearbox, as was found in English motorcycles up to the 1980s ( Norton ), but avoids the disadvantages of a primary drive chain (adjustment).