The

Mazda is a Japanese Multinational corporation, multinational automotive manufacturer headquartered in Fuchū, Hiroshima (town), Fuchū, Hiroshima Prefecture, Hiroshima, Japan. The company was founded on January 30, 1920, as Toyo Cork Kogyo Co., Ltd. ...

Z-series is a smaller gasoline

inline-four engine A straight-four engine (also referred to as an inline-four engine) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The majority of automotive four-cylinder engines use a straight-four layout ( ...

ranging in displacements from 1.3 L to 1.6 L. They are the evolution of the cast-iron block B-engine. The Z-engine has 16-valves operated by dual overhead camshafts, which are in turn driven by a

timing chain In a piston engine, either a timing belt (also called a ''cambelt'') or timing chain or set of timing gears is a perishable component used to synchronize the rotation of the crankshaft and the camshaft. This synchronisation ensures that the engin ...

(ZJ/Z6/ZY only). The block of the 98-02 Z5, ZM and ZL engine is

cast iron Cast iron is a class of iron–carbon alloys with a carbon content of more than 2% and silicon content around 1–3%. Its usefulness derives from its relatively low melting temperature. The alloying elements determine the form in which its car ...

same as the earlier B series of engines. Other Z engines have aluminum alloy block and head, with cast-iron cylinder liners. The block features split upper and lower block assembly for added strength and rigidity, special long

intake manifold An inlet manifold or intake manifold (in American English) is the part of an internal combustion engine that supplies the fuel/air mixture to the cylinder (engine), cylinders. The word ''manifold (engineering), manifold'' comes from the Old Eng ...

for added

torque In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. Wh ...

S-VT S-VT, or Sequential Valve Timing, is an automobile variable valve timing technology developed by Mazda. S-VT varies the timing of the intake valve A valve is a device or natural object that regulates, directs or controls the flow of a flui ...

continuous

variable valve timing Variable valve timing (VVT) is the process of altering the timing of a Poppet valve, valve lift event in an internal combustion engine, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combina ...

, and a

stainless steel Stainless steel, also known as inox, corrosion-resistant steel (CRES), or rustless steel, is an iron-based alloy that contains chromium, making it resistant to rust and corrosion. Stainless steel's resistance to corrosion comes from its chromi ...

4:1 exhaust header. In 2011, Mazda started to introduce the SkyActiv-G as a new, more economical option for vehicles that were equipped with the Mazda Z-engine. Production of the Z-series halted in 2014, being the last year of the Mazda2, Verisa as well as Mazda3 of their generations. Mazda moved on to the full SkyActiv architecture in their vehicle lineup, including running only the aforementioned SkyActiv-G engine, now offered in larger displacements, alongside a new SkyActiv-D turbo-diesel engine.

Z5

The Z5-DE was used in the 1995-1998 Mazda Protegé, Mazda Lantis (Astina) and in Mazda Familia Neo (1994–1997). Bore and stroke were . The Z5 engine was introduced as the first of a newer line of Mazda Z-series engines. The Z series was a new design based on the B-series block, block internals and oil-pan and a different

DOHC An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combus ...

head. Early versions of this motor had a chain driven exhaust cam. The block is cast iron, the oil-pan is a 2-piece design with an upper aluminum and lower stamped steel, piston oil squirters are standard. The cylinder head was a compact design with round intake and exhaust ports. JDM versions produce and . There was also lean-burn version introduced in August 1995; this model produces and sees gas mileage improvements of ten to fifteen percent in the standard Japanese test cycle.

ZJ

The ZJ is available with either continuous cam-phasing VVT ZJ-VE or a high-efficiency Miller cycle ZJ-VEM . Applications: * 2003–2014

Mazda Demio The is a subcompact/ supermini/ B-segment small car manufactured by Mazda since 1996. While sold across four generations in the domestic Japanese market, the Demio nameplate was rarely used outside of Japan, where it was usually called the Maz ...

ZJ-VE * 2007–2014

ZJ-VEM

ZY

ZY-VE * Used in the Demio/Mazda2 (2002-2014), Verisa and Axela/Mazda3

ZL

EEC, JIS, ZL-DE JIS ZL-VE The 1.5 L ZL-VE makes more power than the slightly larger 1.6 L Z6/M-DE its due to variable valve timing on the intake cam (S-VT). Applications: * 1999-2003

Mazda Familia The , also marketed prominently as the Mazda 323, Mazda Protegé and Mazda Allegro, is a small family car that was manufactured by Mazda between 1963 and 2003. The Familia line was replaced by the Mazda3/Axela for 2004. It was marketed as the '' ...

ZM

ZM-DE The ZM engine, has an identical bore yet slightly longer stroke than the ZL as well as a revised head with round intake and exhaust ports. It has exactly the same bore and stroke as the previous generation B6. Some European variants would use VICS on the intake manifold. ZM-II was a variant of the ZM designated to the company Haima to use on the Haima Family. When the Mazda contract to Haima expired the engine was rebranded as a ZM-D and no longer would bear any Mazda markings on the valve cover. The ZL-VE and ZM-DE are closely related engines with an equal bore and share some major parts. The ZL has a stroke of whilst the ZM has . Applications: * 1998-2002

* 2003-2013

Mazda3 The (known as the in China and Japan (first three generations), a combination of "accelerate" and "excellent") is a compact car manufactured by Mazda, available as a 5-door hatchback and 4-door sedan across all generations. It was first in ...

References

External links

{{Mazda vehicles Z Straight-four engines Gasoline engines by model