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In the past, the engine break-in period was very important to the overall life and durability of the engine. The break-in period required has changed over the years with improved piston ring materials and designs. In reference to small engines, the break-in period now (5–10 hours) is short in comparison with that of engines of the past.
A motor vehicle service or tune-up is a series of maintenance procedures carried out at a set time interval or after the vehicle has traveled a certain distance. The service intervals are specified by the vehicle manufacturer in a service schedule and some modern cars display the due date for the next service electronically on the instrument panel.
Technical Service Bulletins (TSBs) are document recommended procedures for repairing vehicles issued by a vehicle manufacturer when there are several occurrences of an unanticipated problem. [1] TSBs can range from vehicle-specific to covering entire product lines and break down the specified repair into a step-by-step process.
Engine braking is a generally accepted practice and can help save wear on friction brakes. It is even used in some motor sports to reduce the risk of the friction brakes overheating. Additionally, fuel injection engines generally do not use fuel while engine braking. This is known as deceleration fuel cut-off (DFCO).
Some engines, such as GM's Premium V family, use crank position sensors which read a reluctor ring integral to the harmonic balancer. This is a much more accurate method of determining the position of the crankshaft and allows the computer to determine, within a few degrees, the exact position of the crankshaft (and thereby all connected ...
A compression release engine brake, compression brake, or decompression brake is an engine braking mechanism installed on some diesel engines. When activated, it opens exhaust valves to the cylinders, right before the compression stroke ends, releasing the compressed gas trapped in the cylinders, and slowing the vehicle.
Crankshaft, pistons and connecting rods for a typical internal combustion engine Marine engine crankshafts from 1942 The crankshaft is located within the engine block and held in place via main bearings which allow the crankshaft to rotate within the block. [3]
If an aircraft suffered engine failure on takeoff, the standard procedure for most aircraft would be to abort the takeoff. [1] [2] [3] In small airplanes, if the engine failure occurs before V R (Rotation Speed), the pilot should reduce throttles to idle, deploy speed brakes (if equipped), and brake as necessary. If the engine failure occurs ...