Subaru EF engine

EF12 MPFI engine in a 1993 Subaru Justy

The EF is an automotive engine made by Subaru, introduced in 1984 for the Subaru Justy. It is a water-cooled, straight-three engine, four-stroke engine with a belt-driven single overhead camshaft, and a chain-driven balance shaft. It has an alloy cylinder head and a closed deck iron engine block with a bore spacing of 86.0 mm (3.39 in). The two-cylinder EK23 engine is closely related to the EF series, sharing the same bore spacing and overall design.[1] The export market 665 cc EK42 motor even shares the bore and stroke of the EF10.

EF10

1.0-litre (997 cc) two valves per cylinder

Subaru EF-10 Engine

Bore x Stroke: 78 mm (3.1 in) x 69.6 mm (2.7 in)

Power:

Usage:

EF12

1.2-litre (1189 cc) three valves per cylinder

Subaru EF-12 Engine

Bore x Stroke: 78 mm (3.1 in) x 83 mm (3.3 in)

Power:

Usage:

Power:

Usage:

External links

References

  1. "スバルの軽自動車用エンジン" [Subaru's kei car engines]. a-design-for-life (in Japanese). 2014-09-27. Retrieved 2015-06-04.
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