Editing BMC B-series engine (section)

==Engine types==

==={{vanchor |1.2}}&nbsp;litre engines===
The {{convert|1199.6|cc|L|1|order=flip|abbr=on}} version was the first version of the engine. The bore and the stroke was {{convert|65.5x89|mm|in|abbr=on}}. The maximum power output was {{convert|39|bhp|kW|abbr=on}} at 4300&nbsp;rpm.

After the formation of [[British Motor Corporation]] (BMC) the new B Series engine was used in the following vehicles:

*1954–56 [[Morris Cowley]]
*1954–56 [[Austin Cambridge|Austin A40 Cambridge]]
*1954–55 [[Nash Metropolitan]] 1200 (used unique "2G" engine prefix)
*[[Massey-Harris]] Combine Harvester

==={{vanchor |1.5}}&nbsp;litre engines===
[[File:Nash Metropolitan Series 3 Austin 1500 engine.jpg|right|thumb|250px|B-series 1500 engine in a [[Nash Metropolitan]] Series 3]]

The {{convert|1489|cc|L|1|order=flip|abbr=on}} version was first used in 1953 in the [[MG Magnette]] ZA in twin [[carburettor]] version and in 1954 in the [[Morris Oxford Series II]] and [[Austin Cambridge]].<ref>Lost Marques;Morris-The William Morris Story. (webpage) Retrieved on 1 January 2016 from http://www.uniquecarsandparts.com.au/lost_marques_morris.php</ref> In 1957, it was used in the original [[MG MGA|MGA]]. Output in twin carburettor form was {{convert|68|-|72|bhp|kW|abbr=on}} and {{convert|55|bhp|kW|abbr=on}} with a single carburettor. Bore and stroke was {{convert|73x89|mm|in|abbr=on}}.

There was also a diesel version of this engine size. Power output was {{convert|40|bhp|kW|abbr=on}} at 4,000&nbsp;rpm and [[torque]] {{convert|64|lbft|abbr=on}} at 1,900&nbsp;rpm. The 1.5&ndash;litre diesel engines were made in India by [[Hindustan Motors]] for many decades until the production of the [[Hindustan Ambassador|Ambassador]] was phased out in 2013. They are very popular amongst the taxicab market in India even today. This engine was also license built by Nissan in Japan in the late 1950s as the [[Nissan H engine#1H|1H engine]].

The 1.5 B-Series would also form the basis of the 1958 [[Perkins Engines|Perkins]] 4.99 / 1.6 L (1,622 cc) diesel, which was fitted in cars, boats and commercial vehicles including London Taxis like the [[William Beardmore and Company|Beardmore Mk7 Paramount taxi]], [[Ford Thames 400E]], early [[Ford Transit]]s, [[Bedford CA]], [[Vauxhall Victor]],<ref>{{Cite web|url=https://www.curbsideclassic.com/curbside-classics-european/carshow-classics-1957-to-1972-vauxhall-victor-luton-salutes-the-victor/|title = Carshow Classics: 1961-1972 Vauxhall Victor – Luton Salutes the Victor|date = 26 July 2020}}</ref> [[Hillman Minx]],<ref>{{Cite web|url=https://www.motorsportmagazine.com/archive/article/january-1960/34/rumblings-january-1960|title = Rumblings, January 1960}}</ref> [[Standard Ensign]] and [[Moskvitch 402|Moskvitch 407]]. In the mid-1960s the 4.99 was upgraded to become the 4.107 / 1.8 L (1,760 cc) and later the classic 4.108 / 1.8 L (1,760 cc), powering the [[Bedford CF]], [[Commer FC]], [[Alfa Romeo Romeo|Alfa Romeo F12/A12]], [[Alfa Romeo Giulia]], [[SEAT 131]] and [[Moskvitch 408]] as well as being used extensively in marine applications, farm equipment and Mustang/OMC skid-steer loaders. The 4.108 continued in production until 1992 the last application being for the auxiliary power unit fitted on British Army tanks in the Gulf War to power the essential air conditioning equipment. A total of almost 500,000 engines were made in Peterborough, with small numbers built elsewhere from kits. The peak production volume was reached in 1970, when almost 30,000 were made.<ref>{{cite web |url=https://sites.google.com/view/perkinslongserviceclub/heritage-snippets/the-4-99-4-107-4-108-engines |title=The 4.99, 4.107, 4.108 engines |website=Perkins Long Service Club |access-date=29 June 2022 }}</ref>

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*1954–61 [[Morris Oxford Series II]], [[Morris Oxford Series III|III]], [[Morris Oxford Farina|V & VI]]
*1956–59 [[Morris Cowley]]
*1956–62 [[Nash Metropolitan]] 1500
*1955–58 [[MG MGA|MGA]]
*1953–61 [[MG Magnette]] ZA, ZB, & Mark III
*1956-61 [[Morris Commercial J2|Morris J2]] 1/2-ton vans
*1956–58 [[Austin Cambridge|Austin A50 Cambridge]]
*1958–61 [[Austin Cambridge|Austin A55 Cambridge]]
*1956–58 [[Wolseley 15/50]]
*1957–65 [[Wolseley 1500]]
*1958–61 [[Wolseley 15/60]]
*1957–61 [[Morris Commercial JB-type]] half-ton vans
*1957-61 ((Austin 101)) half-ton vans
*1957–65 [[Riley 1.5]]
*1959–61 [[Riley 4/68]]
*1959–65 [[Rochdale Olympic]]
*1958–62 [[Morris Major]] and [[Austin Lancer]] Series I/II
*1957–63 Tempo Matador
*[[Hindustan Ambassador]]
*[[Hindustan Contessa]]
*[[International Harvester]] "Metro-Mite" delivery truck
*Navigator 1500 [[Marine propulsion|marine engine]]
*1958–60 [[TVR Grantura]] Mark I
*1960–62 [[TVR Grantura]] Mark II & IIA
*1958–59 [[Elva (car manufacturer)|Elva Courier]]
{{hidden end}}

==={{vanchor |Twin-Cam}} engines===
A special Twin-Cam ([[DOHC]]) version of the {{convert|1588|cc|L|1|order=flip|abbr=on}} B-series engine was produced for the [[MG MGA|MGA]]. Output was {{convert|108|bhp|kW|abbr=on}} at 6700&nbsp;rpm in the high-compression (9.9:1) version and {{convert|100|bhp|kW|abbr=on}} in the optional low-compression (8.3:1) version. The engine block was cast iron, but the crossflow eight-port cylinder head was of [[aluminium alloy]]. Drive to the twin camshafts was by chain from a [[Gear train|gear-driven]], half-speed shaft running in the space that would have been occupied by the conventional camshaft.

This engine gained a reputation for being unreliable in service, especially in the high-compression version which needed high-[[octane]] fuel, but this has now been largely overcome. The piston burning habits — thought to be the result of [[ignition timing]] — was later discovered to be due to a vibration induced lean burn situation involving the float bowls, easily correctable by flexibly mounting the carburettors. A total of 2,111 cars were built, in both [[coupé]] and [[Roadster (automobile)|roadster]] versions.

A very few engines with the special displacement of {{convert|1762|cc|L|1|order=flip|abbr=on}} were produced for racing purposes.

Applications:
*1958–60 [[MG MGA#Twin-Cam|MGA Twin-Cam]]

==={{vanchor |1.6}}&nbsp;litre engines===
The engine was enlarged to {{convert|1588|cc|L|1|order=flip|abbr=on}} in 1958 by increasing the bore to {{convert|75.4|mm|in|abbr=on}}.

Applications:
*1959–61 [[MG MGA|MGA 1600]]
*1960–62 [[TVR Grantura]] Mark II, IIA
*1959-61 [[Elva (car manufacturer)|Elva Courier]] Mark II

===1.6&nbsp;litre {{vanchor |Mark II}} engines===
The engine was enlarged to {{convert|1622|cc|L|1|order=flip|abbr=on}} in 1961 with another bore increase, this time to {{convert|76.2|mm|in|abbr=on}}.

{{hidden begin|title=Applications:|titlestyle=background:#88FF88; text-align:left;|bodystyle=text-align:left;}}
*1961–62 [[MG MGA|MGA Mark II]]
*1961–69 [[Austin Cambridge|Austin Cambridge A60]]
*1961-67 [[Morris Commercial J2|Morris J2]] 1/2-ton vans
*1961–71 [[Morris Oxford Farina#Oxford series VI (1961–1971)|Morris Oxford VI]]
*1961–71 [[Wolseley 15/60|Wolseley 16/60]]
*1961–69 [[Riley 4|Riley 4/72]]
*1961–68 [[MG Magnette|MG Magnette Mark IV]]
*1961–67 Austin 152 & [[Morris J2]] 1/2-ton van
*1974–78 [[LDV Pilot|Sherpa van]]
*1962–64 [[Morris Major]] Elite
*1963–66 Tempo Matador
*1966–67 Hanomag Matador
*1967–73 Hanomag F20, Hanomag F25, Hanomag F30, Hanomag F35
*1970–73 Mercedes-Benz L206, Mercedes-Benz L306
*Navigator 1600 marine engine
*1962–64 [[TVR Grantura]] Mark III
*1963-64 [[Elva Courier]] Mark III
{{hidden end}}

{{anchor |Blue Streak|I6}}
The {{convert|1622|cc|L|1|order=flip|abbr=on}} B series also formed the basis of the "Blue Streak" engine developed by [[British Motor Corporation (Australia)|BMC Australia]] for use in the locally-built [[Austin Freeway]] and [[Wolseley 24/80]] models, both in turn variants of the existing Austin A60 Cambridge. The "Blue Streak" was an inline-6 development of the B series, adding two extra cylinders to create a {{convert|2433|cc|L|1|order=flip|abbr=on}} engine. Different market demands in Australia required the fitting of a six-cylinder engine to a car the size of BMC's mid-range [[British Motor Corporation#BMC Farina|Farina]] model and the corporate [[BMC C-Series engine|C-series engine]] would not fit, requiring the development of the unique "Blue Streak" engine. Both models were withdrawn in 1965 and no further use of the engine was made.

==={{vanchor |1.8}}&nbsp;litre engines===
The engine was enlarged again to {{convert|1798|cc|L|1|order=flip|abbr=on}} in 1962. Bore was {{convert|80.2|mm|in|abbr=on}} and stroke was still {{convert|89|mm|in|abbr=on}}, power varied by application with typically {{convert|94|bhp|kW|abbr=on}} at 5,500&nbsp;rpm in twin carburettor format and {{convert|85|bhp|kW|abbr=on}} in single carburettor format as used in the [[Morris Marina]].<ref>{{cite web|last1=Zal|first1=Pawel|title=1972 Morris Marina Coupé|website=Automobile-Catalog.com|url=http://www.automobile-catalog.com/make/morris/marina/marina_coupe/1972.html|access-date=25 February 2017}}</ref> The engine at first had a three-bearing crankshaft with a five-bearing version appearing in 1964.

There was also a diesel version of this capacity, used in the [[Leyland Sherpa]] van with a power output of {{convert|56|bhp|kW|abbr=on}} at 4,250&nbsp;rpm, and built under license in [[Turkey]] for many years. It is still widely used on narrowboats on the canals of the UK.{{citation needed|date=March 2014}}

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*1969 [[Probe 16]]
*1962–80 [[MG MGB|MGB]]
*1964–75 [[BMC ADO17]] ("Landcrab") Austin 1800
*1967–72 [[BMC ADO17]] ("Landcrab") Wolseley 18/85
*1966–75 [[BMC ADO17]] ("Landcrab") Morris 1800
*1975–78 [[Princess (car)|Princess]] 1.8
*1971–78 [[Morris Marina]] 1.8
*1964–67 [[TVR Grantura]] Mark III and IV
*1964-65 [[Elva Courier]] Mark IV
*1974–78 [[Leyland Sherpa]] van
*1973–75 [[Hanomag]] F20, Hanomag F25, Hanomag F30, Hanomag F35 ([[:de:Harburger Transporter|de]])
*1973–77 Mercedes-Benz L207
*1973–78 Mercedes-Benz L307
{{hidden end}}

==={{vanchor |2.0}}&nbsp;litre engines===
2-litre B-Series prototype was designed by BMC engine-man Stan Johnson in 1964–65. This unit displaced 1,998 cc, power output was 106&nbsp;hp and featured siamesed cylinder bores and offset conrods in order to use the existing 1.2/1.5-litre cylinder block. This engine never went beyond the prototype stage.<ref>{{Cite web|url=https://www.leylandprincess.co.uk/o-series.htm|title = O-Series engines|url-status=dead|archive-url=https://web.archive.org/web/20211027035642/https://www.leylandprincess.co.uk/o-series.htm|archive-date=27 October 2021}}</ref>

==={{vanchor |2.4}}&nbsp;litre engines===
There was a {{convert|2433|cc|L|1|order=flip|abbr=on}} six-cylinder unit, named "Blue Streak", which was used in the Australian [[Austin Freeway]] and [[Wolseley 24/80]].