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Camillo Castiglioni 2
Camillo Castiglioni 3

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2016 100 years BMW
2016 740 e/Le
2016 760 iL
2016 M2 Coupé
2015 X-Production USA
2015 M4 GTS Concept
2015 i3
2015 7series
2015 3.0 CSL
2015 X5 xDrive 40e
2015 6series Facelift
2015 2series Gran Tourer
2015 1series
2014 X1
2014 2series Cabriolet
2014 4series Cabriolet
2014 X6
2014 X4
2014 Mini
2014 M4 Convertible
2014 2series Active Tourer
2014 4series Gran Coupe
2014 2series Coupe
2013 X5
2013 End six-cyl. eng.?
2013 i8
2013 i3
2013 4series Coupe
2013 3 series GT
2012 Zagato Coupe
2012 12 cylinder
2012 7series
2012 3series
2011 6ser. Convertible
2011 6ser. Coupe
2011 M 5
2011 K1600 six cyl.
2010 M3 Coupe
2010 X3
2009 X1
2009 5series - M5 2011
2008 7series
2008 F108
2008 X6
2007 550i Security
2007 325i Conv.
2006 X5
2006 Z4 Body
2006 Z4
2006 R 1200
2006 F 800
2006 Hydrogen 7
2006 Steam Drive
2006 Alpina D 3
2005 3xx
2005 Alpina B 6
2005 2-stage Charging
2004 Active Steering
2004 1
2004 1 Convertible
2003 530d
2003 X3
2003 Formula 1
2001 Valvetronic
2001 Mini
1999 Z8
1999 X5
1998 M5
1998 7series
1998 3series
1998 320 d
1998 R1100 GS
1998 Cardi Curara
1997 Z3
1995 328i Convertible
1992 Vanos
1989 Hersteller/BMW/BMW 840/850
1988 K 1
1988 M3 Convertible
1988 Z 1
1987 Touring
1987 Group A DTM 23
1987 12-cylinder
1986 M3
1986 7er
1986 325 i Conv.
1985 BT 54 Turbo
1983 K 100
1983 635 CSI
1982 3er
1981 315
1981 525 i
1980 7series
1978 320 Baur
1978 M 1 Gr. 4 Procar
1978 M1
1978 635 CSI
1977 728
1976 6series
1975 1502
1975 3xx 1.Generation
1973 2002 Turbo
1971 3.0 CSL
1971 3.0 CS
1971 3.0 S
1971 Touring
1971 Baur 02
1968 2500/2800
1968 2002 ti
1968 Glas V8 3000
1968 02 Convertible
1966 02-series
1966 2000
1965 2000 CS
1964 Glas 1700 GT
1962 3200 CS
1963 1800
1962 Glas 1304
1962 Semi-trailing Arms
1962 1500
1960 R 69 S
1959 Austin Mini
1959 700
1958 Glas Isar
1957 Glas Goggomobil TS
1957 600
1956 507
1956 503
1955 Glas Goggomobil T
1955 Isetta
1952 501/502
1959 340
1938 327/328
1937 WR 500
1937 327
1936 328
1936 326
1934 315
1934 309
1933 303
1932 3/20 AM 4
1932 3/20
1929 3/15 DA 3
1929 3/15 DA 2
19297 3/15 DA 1
1923 R 32
1920 First Engine
Engine Data



  BMW R 32



BMW R 32
EngineBoxer twin-cylinder
Cubic capacity, (bore * stroke)494 cm³ (68 mm * 68 mm)
Compression5 : 1
Mixture preparationSingle carburetor
Performance6 kW (8,5 HP) at 3200 rpm
Construction typeRear-wheel drive straight mounted
Clutch/Single dry disc
Gear boxManual-three-speed
Front suspensionShort swing-arm, elliptic-leaf-springs
Rear suspensionRigid
Brakes f/rDrum/wedgeblock-brake
Wheelbase1.380 mm
Wheels26 x 3 (2,5")
Length2.100 mm
Width800 mm
Height950 mm
Tank capacity14 liters
Kerb weight122 kg + rider
Maximum speed95 km/h
First appearanceGerman Motor Show Berlin
Construction year1923

Let's speak about motorcycles, which, next to the aircraft engines, was the supporting product at BMW. As a heritage, the M2B15 engine was delivered to the Victoria works to be installed for a chain-drive, and also for the belt-driven, almost unsellable Helios. The climate was right for the building of a completely new motorcycle, the R32.

It's not at all difficult to imagine what type of construction it would be. The boxer engine was turned (by 90°) so that finally, both cylinders would get an equal amount of air-flow. It was important, for the further course of the drive train, that this motorcycle had, quite quite common at that time, an unsprung rear-end. This making the typical cardan-drive installation more simple. Take a look at the relatively simple shaft and flange on the gearbox.


All together, after his GP-vehicle for Mercedes and his high- altitude engine, Max Friz delivered his third masterpiece. The R32 represented the basic construction-type for at least the next 50 years. It was needed now more than ever, because through the arrival of the engineer Martin Stolle, the (BMW)-engine was so much improved that from that time onwards they could do without deliveries from Munich.

Unfortunately at the same time, the Victoria engine had also become more powerful and there was the real danger that it would beat BMW in the racing sector. At least at this time, the freshly certified engineer Schleicher was there, who as a detail-designer, introduced overhead-valves into the R32, thus finally raising BMW above the anonymous masses. It now bears the name R37 and in contrast to the competition products (mostly English), all the moving parts, including the valve-drive, are protected from dust and from street dirt.


Part 5


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