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  2. BMW 3 Series (E21) - Wikipedia

    en.wikipedia.org/wiki/BMW_3_Series_(E21)

    The BMW E21 is the first generation of the BMW 3 Series, a range of compact executive cars. The E21 was produced from June 1975 to December 1983 and replaced the BMW 02 Series . The series was exclusively built in a two-door coupé body style (except for convertibles made by Baur).

  3. BMW M20 - Wikipedia

    en.wikipedia.org/wiki/BMW_M20

    The BMW M20 is a SOHC straight-six petrol engine which was produced from 1977 to 1993. It was introduced eight years after the larger BMW M30 straight-six engine, which remained in production alongside the M20. [1] The first cars to use the M20 were the E12 5 Series and the E21 3 Series. The initial M20 model had a displacement of 2.0 L (122 cu ...

  4. Sunroof - Wikipedia

    en.wikipedia.org/wiki/Sunroof

    Sunroof systems may be manual or electric, while most moonroof systems are electric/electronic. Manual sunroofs may be lever actuated, as in venting type pop-ups, manual lever or crank operated for sliding systems. Electric roof systems are usually cable driven by a motor and feature some form of sliding opening.

  5. Exploded-view drawing - Wikipedia

    en.wikipedia.org/wiki/Exploded-view_drawing

    An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [1]It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three-dimensional exploded diagram.

  6. Technical Service Bulletin - Wikipedia

    en.wikipedia.org/wiki/Technical_Service_Bulletin

    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.

  7. E21 - Wikipedia

    en.wikipedia.org/wiki/E21

    E21 may refer to: BMW E21, an automobile platform; HMS E21; European route E21; DRG series E 21, different locomotives of the German National Railroad; E21 - Code that it designates the Astronomical observatory of Norm Roses, Leyburn; E21 - code ECHO of the Nimzo-Indian Defence, opening of chess; Eyeshield 21, a manga based on American Football

  8. Engine tuning - Wikipedia

    en.wikipedia.org/wiki/Engine_tuning

    Engine tuning is the adjustment or modification of the internal combustion engine or Engine Control Unit (ECU) to yield optimal performance and increase the engine's power output, economy, or durability. These goals may be mutually exclusive; an engine may be de-tuned with respect to output power in exchange for better economy or longer engine ...

  9. Slider-crank linkage - Wikipedia

    en.wikipedia.org/wiki/Slider-crank_linkage

    Slider-crank chain inversion arises when the connecting rod, or coupler, of a slider-crank linkage becomes the ground link, so the slider is connected directly to the crank. This inverted slider-crank is the form of a slider-crank linkage that is often used to actuate a hinged joint in construction equipment like a crane or backhoe, as well as ...