The

Toyota is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 ...

K series is an

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

that was produced from 1966 through 2007. It is a two-valve

pushrod engine An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located bel ...

design. It was originally built from the Toyota Kamigo plant in

Toyota City , formerly known as Koromo, is a city in Aichi Prefecture, Japan. , the city had an estimated population of 426,162 and a population density of 464 people per km2. The total area was . It is located about 35 minutes from Nagoya by way of the Meite ...

factory in Japan. All K series are non-crossflow engines – the inlet and exhaust manifolds are on the same side. They have

cast iron Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impuriti ...

blocks and

aluminium alloy An aluminium alloy (or aluminum alloy; see spelling differences) is an alloy in which aluminium (Al) is the predominant metal. The typical alloying elements are copper, magnesium, manganese, silicon, tin, nickel and zinc. There are two principal ...

heads, with a

crankshaft A crankshaft is a mechanical component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating shaft containing one or more crankpins, that are driven by the pistons via the connecting ...

supported by five

main bearing Main may refer to: Geography * Main River (disambiguation) **Most commonly the Main (river) in Germany * Main, Iran, a village in Fars Province *"Spanish Main", the Caribbean coasts of mainland Spanish territories in the 16th and 17th centuries ...

s. K series motors have both

hydraulic tappet A hydraulic tappet, also known as a hydraulic valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. Conventional solid valve lifters require regular adjusting to maintain a sma ...

or hydraulic valve lifters, solid lifters and 1.5 ratio rockers with an adjustment thread for

tappet A tappet is most commonly a component in an internal combustion engine which converts the rotating motion of the camshaft into linear motion of the valves, either directly or indirectly. An earlier use of the term was for part of the valve gear ...

clearance. 7k engines were released with only the hydraulic valve lifters from factory, whereas 4k and 5k engines were made with both hydraulic and solid lifters (depending on year and which model vehicle.)

K

The 8-valve

OHV An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located bel ...

K was produced from 1966 through 1969. A similar K-B was produced from 1968 through 1969, the -B designates twin carburettors. Thus equipped, the engine produces at 6600 rpm. The Publica SL received this more powerful version. Applications: * Toyota Corolla (KE1x) *

Toyota Publica The is a small car manufactured by the Japanese automaker Toyota from 1961 until 1978. Conceived as a family car to fulfill the requirements of the Japanese Government's "national car concept", it was the smallest Toyota car during that period an ...

(KP3x)

2K

The eight-valve

2K was produced from 1969 through 1988. The cylinder bore and stroke was . Output in 1978 was at 5800 rpm, and at 3800 rpm. In 1983, New Zealand received a version with at 5800 rpm, while Europe received a version with at 5600 rpm, both with a maximum torque of at 4000 rpm. Applications: *

/1000 (KP30/KP36) *

Toyota Starlet The is a subcompact car manufactured by Toyota from 1973 until 1999, replacing the Publica, but retaining the Publica's "P" code and generation numbering. The first generation Starlet was sold as the Publica Starlet in some markets. In Japan ...

3K

The eight-valve

overhead valve An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located be ...

3K was produced from 1969 through 1977. Cylinder bore and stroke was . The 1969 through 1975 3K-B was a twin-carburetor version. The

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

-spec 3K-C (1977–1979) and 3K-H were other available versions. ;Applications: * Toyota Corolla *

Toyota Kijang The Toyota Kijang is a series of pickup trucks, multi purpose vehicles and light commercial vehicles sold mainly in Southeast Asia, Taiwan and India by Toyota. It was first introduced in Indonesia in 1977 and had become the most popular car in ...

/first generation Toyota Tamaraw *

Toyota LiteAce The Toyota LiteAce and TownAce are a line of light commercial and derivative passenger vans produced by the Japanese car manufacturer Toyota. These vehicles originally utilized the cab-over-engine configuration, although since 1996 a semi-ca ...

(KM10) *

(later pickups and vans received the desmogged 3K-HJ engine) *

Toyota TownAce is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 m ...

(KR10) *

Daihatsu Charmant The Daihatsu Charmant is a subcompact sedan built by Daihatsu of Japan, based on the Toyota Corolla. It was succeeded by the Daihatsu Applause two years after Charmant production ended. The Charmant was heavily based on the E20 Toyota Corolla; ...

(A10) * Daihatsu Delta 750 (KB10) ;Specifications:

4K

The 4K was produced from 1977 through 1989. Cylinder bore and stroke was . It was an 8-valve

OHV engine An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located be ...

. In 1980, the 4K produced at 5250 rpm. From 1983 through 1984, output was at 5600 rpm and at 3600 rpm. The 1981 and 1982 California-spec 4K-C produced at 5200 rpm and at 3600 rpm. Torque was up to at 3400 rpm for the

fuel injected Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All comp ...

1982 through 1984 4K-E. The Japan-spec 4K-U produced at 5600 rpm and at 3600 rpm in 1982. Available in hydraulic and solid lifter configurations Applications: * Toyota Corolla *

Toyota Liteace The Toyota LiteAce and TownAce are a line of light commercial and derivative passenger vans produced by the Japanese car manufacturer Toyota. These vehicles originally utilized the cab-over-engine configuration, although since 1996 a semi-ca ...

* 1977–1979 Daihatsu Delta 750 (KD11)

5K

The 5K was produced from 1983 through 1996. Typical output is at 5600 rpm. Bore and stroke is . It was available with either 4- or 5-speed manual transmissions. Like the smaller 4K model, it uses hydraulic lifters as well as solid lifters for the pushrod. Applications: * 1983.08-1987.10 Toyota Carina Van (KA67V 'Van') 5K-J * 1983.05-1987.08 Toyota Corolla Van (KE74V) 5K-J * 1983.10-1987.12 Toyota Corona Van (KT147V 'Van') 5K-J, at 5,200 rpm *

''KR27'' Van *

''KM36'' Van at 4800 rpm, at 3200 rpm * Toyota Kijang/Tamaraw *

''KR41'' Van * Toyota Forklift (late 1980s-early 1990s model)

7K

The 7K was first introduced in 1983. Cylinder bore and stroke was . Output was at 4600 rpm and at 2800 rpm while the EFI version which can be found in Toyota Kijang KF80 produces at 4600 rpm and at 3200 rpm. The Engine was available with a 5 speed manual & 4 speed

automatic transmission An automatic transmission (sometimes abbreviated to auto or AT) is a multi-speed transmission used in internal combustion engine-based motor vehicles that does not require any input from the driver to change forward gears under normal driving c ...

. Available in both fuel injected and carburetted configurations, the 7K produces much more power and torque compared to the other K engines however it is a lot less 'rev happy' due to having such a long stroke. 7K-E is available in KR42 Townace SBV vans (1997–2007) using a large G52 5 speed gearbox (same bellhousing to box pattern as W55), or automatic. Applications: * Toyota Kijang/Tamaraw FX/Revo * Toyota LiteAce/TownAce

K

2K

3K

4K

5K

7K

References

See also