Mazda OHV engine

Last updated
Mazda OHV engine
Overview
Manufacturer Mazda
Layout
Configuration Straight-2 & straight-4
Displacement 0.4 L (358 cc)
0.6 L (586 cc)
0.8 L (782 cc)
1.0 L (987 cc)
1.2 L (1,169 cc)
2.0 L (1,985 cc)
Cylinder bore 46 mm (1.8 in)
54 mm (2.1 in)
58 mm (2.3 in)
68 mm (2.7 in)
70 mm (2.8 in)
75 mm (3.0 in)
82 mm (3.2 in)
Piston stroke 54 mm (2.1 in)
64 mm (2.5 in)
68 mm (2.7 in)
74 mm (2.9 in)
76 mm (3.0 in)
84 mm (3.3 in)
94 mm (3.7 in)
Valvetrain OHV
Compression ratio 8.5:1, 8.6:1, 9.0:1
Combustion
Fuel system Hitachi/Stromberg carburettor
Fuel type Gasoline
Cooling system Water-cooled
Output
Power output 33–92 PS (24–68 kW)
Torque output 39.2 N⋅m (29 lb⋅ft)

After an early flirtation with V-twin engines, Mazda's small cars of the 1960s were powered by OHV straight-2 and straight-4 engines. This family lasted from 1961 until the mid-1970s. Today, Mazda's keicars use Suzuki engines. It was produced at the Hiroshima Plant in Hiroshima, Japan.

Contents

AA

The engine was a two-stroke, water-cooled straight-twin engine used in the Mazda Chantez and Mazda Porter kei car and truck unique to Japan from 1972 until 1976. The displacement is 359 cc (21.9 cu in), producing 24.3 kW (33 PS) and 39.2 N⋅m (29 lb⋅ft) of torque. [1]

DA/DB

The 358 cc (21.8 cu in) water-cooled OHV straight-four DA engine, used in the 1962 P360 Carol had a tiny 46 mm × 54 mm (1.8 in × 2.1 in) bore and stroke. This was one of the smallest production four-cylinder automobile engines in history, only beaten by Honda's 356 cc (21.7 cu in) inline-four unit used in the T360 truck. The engine's small size was dictated by Japan's kei car rules which offered special status to vehicles with engines displacing less than 360 cc (22 cu in). Mazda's tiny OHV was the only four-cylinder in the class in the 1960s, but was outperformed by 2-stroke and I3 powerplants from other companies.

When fitted to the B360/Porter light truck and van, the engine received the DB engine code. [2]

RA

The 586 cc (35.8 cu in)RA engine was a larger version of the 358 cc (21.8 cu in) engine 54 mm × 64 mm (2.13 in × 2.52 in). It was used in the 1962-1964 P600 Carol and produced 28 PS (21 kW) and 4.2 kg⋅m (41 N⋅m; 30 lb⋅ft) of torque.

SA

The SA, a larger 782 cc (47.7 cu in) engine powered the 1963-1967 Mazda Familia and the 1966 Mazda Bongo. Bore and stroke was 58 mm × 74 mm (2.28 in × 2.91 in) for this water-cooled OHV engine. In the Familia, the SA produces 42 PS (31 kW) at 6,000 rpm, while the Bongo received a detuned version with 37 PS (27 kW) at 5,000 rpm. [3] For 1966 and 1967, the max power of the SA mounted in the Familia increased to 45 PS (33 kW) (at the same engine speed), by increasing the compression ratio from 8.5:1 to 9.0:1. [4]

PB

The 1.0 L (987 cc)PB engine, a separate development, used a square 68 mm (2.68 in) bore and stroke. It was a water-cooled OHV engine and first powered the 1967 Mazda Familia 1000. Output ranged from 52 to 58 PS (38 to 43 kW), depending on the application.

TB

One of the more-popular variants of this family was the 1.2 L (1,169 cc)TB unit found in the Familia/1200. Bore and stroke was 70 mm × 76 mm (2.76 in × 2.99 in). The 1200 Coupé used a Hitachi/Stromberg carburettor and 8.6:1 compression to produce 68 PS (50 kW) at 6000 rpm and 9.6 kg⋅m (94 N⋅m; 69 lbf⋅ft) at 3000 rpm. [5] This engine was built from 1968 until 1970 for passenger cars, until 1971 for the Familia Truck.

UA/UB

The UA (and the similar UB, for use in three-wheeled trucks) is a 1484 cc water-cooled overhead valve inline-four engine. It has a bore of 75 mm (3.0 in) and a stroke of 84 mm (3.3 in). As installed in the original 1960 D1500 four-wheel truck, equipped with a sidedraft carburetor, it has a maximum horsepower of 60 PS (44 kW) at 4600 rpm and a maximum torque of 10.4 kg⋅m (102 N⋅m; 75 lbf⋅ft) at 3000 rpm. The B1500's output remained the same but for the second generation B1500 an improved engine cylinder head and valves and a downdraft carburetor increased the maximum horsepower to 72 PS (53 kW) at 5200 rpm and a maximum torque of 12.0 kg⋅m (118 N⋅m; 87 lbf⋅ft) at 3400 rpm.

UA:

UB:

VA

The VA first appeared in the Mazda D2000 of April 1962. With a bore and stroke of 82 mm × 94 mm (3.23 in × 3.70 in), displacement is 2.0 L (1,985 cc). Power output was originally 81 PS (60 kW) at 4600 rpm, [6] but later models have 92 PS (68 kW) at 5000 rpm. [7]

See also

Related Research Articles

<span class="mw-page-title-main">Mazda Porter</span> Motor vehicle

The Mazda Porter and Porter Cab are a series of small kei trucks that were produced from 1961 to 1989 by Mazda, mainly for sale in the domestic Japanese market. Export versions of the Porter were labelled E360. The Porter was replaced by the Autozam Scrum, a rebadged Suzuki Carry.

The Mazda B-series is a small-sized, iron-block, inline four-cylinder engine with belt-driven SOHC and DOHC valvetrain ranging in displacement from 1.1 to 1.8 litres. It was used in a wide variety of applications, from front-wheel drive economy vehicles to the turbocharged full-time 4WD 323 GTX and rear-wheel drive Miata.

The C family was Mazda's first large piston engine design. It is not certain whether Mazda has a name for this collection of engines, and it is uncertain precisely which ones are related.

<span class="mw-page-title-main">Mazda Wankel engine</span> Reciprocating internal combustion engine

The Mazda Wankel engines are a family of Wankel rotary combustion car engines produced by Mazda.

<span class="mw-page-title-main">Nissan VK engine</span> Reciprocating internal combustion engine

The VK engine is a V8 piston engine from Nissan. It is an aluminum DOHC 4-valve design.

<span class="mw-page-title-main">Honda E engine</span> Former Japanese automobile engines

The E-series was a line of inline four-cylinder automobile engines designed and built by Honda for use in their cars in the 1970s and 1980s. These engines were notable for the use of CVCC technology, introduced in the ED1 engine in the 1975 Civic, which met 1970s emissions standards without using a catalytic converter.

<span class="mw-page-title-main">Toyota K engine</span> Reciprocating internal combustion engine

The Toyota K series is an inline-four engine that was produced from 1966 through 2007. It is a two-valve pushrod engine design. It was originally built from the Toyota Kamigo plant in Toyota City factory in Japan.

<span class="mw-page-title-main">Prince G engine</span> Reciprocating internal combustion engine

The Prince G-series engine was the company's only straight-four and straight-six engines which began production in 1955. A number of variations were made, with both OHV and OHC heads. A diesel four-cylinder with 1.9 L (1,862 cc) was also built, called the D-6. The G series was used in the Skyline, the Laurel, and the Gloria from the 1950s to the early 1970s.

<span class="mw-page-title-main">Mazda B series</span> Series of pickup trucks made by Mazda

The Mazda B series is a series of pickup trucks that was manufactured by Mazda. Produced across five generations from 1961 to 2006, the model line began life primarily as a commercial vehicle, slotted above a kei truck in size. Through its production, Mazda used engine displacement to determine model designations; a B1500 was fitted with a 1.5 L engine and a B2600, a 2.6 L engine.

<span class="mw-page-title-main">Honda R engine</span> Reciprocating internal combustion engine

The Honda R engine is an inline-four engine launched in 2006 for the Honda Civic (non-Si). It is fuel injected, has an aluminum-alloy cylinder block and cylinder head, is a SOHC 16-valve design and utilizes Honda's i-VTEC system. The R series engine has a compression ratio of 10.5:1, features a "drive by wire" throttle system which is computer controlled to reduce pumping losses and create a smooth torque curve.

The Toyota B engine family was a series of inline-four diesel engines.

<span class="mw-page-title-main">Toyota Y engine</span> Reciprocating internal combustion engine

The Toyota Y engine is a series of overhead valve straight-four petrol engines manufactured by Toyota from 1982 through 1996. The Y engine has mostly been used in commercial and off-road vehicles.

<span class="mw-page-title-main">Suzuki F engine</span> Reciprocating internal combustion engine

The Suzuki F engine is a series of inline three- and four-cylinder internal combustion petrol engines manufactured by Suzuki Motor Corporation and also licensed by many manufacturers for their automobiles. This engine was Suzuki's first four-stroke car engine when it first appeared in 1977.

<span class="mw-page-title-main">Daihatsu J-series engine</span> Reciprocating internal combustion engine

The Daihatsu J-series engine is a series of the inline-four engines specially for Daihatsu's kei cars that was produced from August 1994 to August 2012. This was the first and last inline-four engine for Daihatsu's kei cars, debuted in the L502 Daihatsu Mira that was launched in September 1994.

References

  1. ↑ "Specifications on Mazda Chantez". Automobile Catalog. Retrieved 28 November 2016.
  2. ↑ "自動車ガイドブック 1968年~69年新" [Japanese motor vehicles guide book 1968/1969] (in Japanese). 15. Japan: Japan Automobile Manufacturers Association. 1968-10-25: 138, 160.{{cite journal}}: Cite journal requires |journal= (help)
  3. 1 2 3 4 Ozeki, Kazuo (2007). 日本のトラック・バス 1918~1972[Japanese Trucks and Buses 1918-1972:] (in Japanese). Tokyo: Miki Press. p. 156. ISBN   978-4-89522-494-9.
  4. ↑ Tanegawa, Takeshi (長谷川) (June 2007). "Mazda Familia Model SSA" (PDF). Letter from Toyota Museum (トヨタ博物館だより) (in Japanese) (71). Toyota Motor Corporation: 5–7. Retrieved 2011-07-16.
  5. ↑ 絶版車カタログ 国産車編 Part1 1950~1969 (Eichi Mook)[Japanese Vintage Car Guide: Car Catalog part 1, 1950–1969]. Tokyo: Eichi Publishing (英知出版). 1996. p. 64. ISBN   4-7542-5055-9.
  6. ↑ Ozeki, p. 150
  7. 1 2 "Japanese Motor Vehicles Guide Book". 自動車ガイドブック: Japanese motor vehicles guide book (in Japanese). 20. Japan: Japan Automobile Manufacturers Association: 279. 1973-10-30.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.