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词条 BMW M60
释义

  1. Development

  2. Design

  3. Versions

     M60B30  M60B40 

  4. Alpina versions

  5. Nikasil damage from high-sulfur fuels

  6. See Also

  7. References

{{Infobox automobile engine
|name=BMW M60 engine
|image=BMW Alpina B8 4.6 Coupé E36 (7712800700).jpg
|production=1992–1996
|caption=Alpina B8 engine (based on the BMW M60)
|predecessor=BMW OHV V8
|successor=BMW M62
|block=Aluminum
|head=Aluminum
|configuration= 90° V8
|displacement={{convert|3.0|-|4.0|L|cuin|0|abbr=on}}
|valvetrain=DOHC
|fueltype=Petrol
}}

The BMW M60 is a naturally aspirated V8 petrol engine which was produced from 1992 to 1996. It was BMW's first V8 engine in over 25 years.

The M60 was replaced by the BMW M62 engine.

Development

During the 1970s, BMW produced a prototype V8 engine for the E23 7 Series, however this engine did not reach production.[1]

Development of the M60 began in 1984.[2]

Design

The M60 engine has double overhead camshafts with four valves per cylinder.[3] The camshaft is driven by a dual-row timing chain[4] with a self-adjusting tensioner. Valves had hydraulic lash adjustment to reduce maintenance. The ignition and fuel injection systems are controlled by the Bosch Motronic 3.3 system, and the ignition system is a coil-on-plug design with knock sensors.[4][5]

To reduce weight, the engine uses aluminum for both the engine block and cylinder head, magnesium valve covers[6] and a plastic intake manifold.[2] The M60 was BMW's first car engine to use a "split conrod" design,[2] where sintered connecting rods are made as a single piece and then fractured in order to ensure a closer fit.[7] The dry weight of the engine is between {{convert|175|kg|lb|0|abbr=on}} and {{convert|203|kg|lb|0|abbr=on}}.[2][6]

Versions

EngineDisplacementPowerTorqueYears
M60B30 2997|cc|cuin|1|abbr=on}}160|kW|bhp|0|abbr=on}}
at 5800 rpm		290|Nm|lbft|0|abbr=on}}
at 4500 rpm		1992-1996
M60B40 3982|cc|cuin|1|abbr=on}}210|kW|bhp|0|abbr=on}}
at 5800 rpm		400|Nm|lbft|0|abbr=on}}
at 4500 rpm

M60B30

The M60B30 has a bore of {{convert|84|mm|in|2|abbr=on}} and a stroke of {{convert|67.6|mm|in|2|abbr=on}},[2] for a displacement of {{convert|2997|cc|cuin|1|abbr=on}}. Compression ratio is 10.5:1, giving an output of {{convert|160|kW|bhp|0|abbr=on}} at 5800 rpm and {{convert|290|Nm|lbft|0|abbr=on}} at 4500 rpm.[8]

Applications:

  • 1992–1995 E34 530i
  • 1992–1994 E32 730i
  • 1994–1996 E38 730i

M60B40

The M60B40 has a bore of {{convert|89|mm|in|2|abbr=on}} and a stroke of {{convert|80|mm|in|2|abbr=on}},[7] for a total displacement of {{convert|3982|cc|cuin|1|abbr=on}}. Compression ratio is 10.0:1,[7] giving {{convert|210|kW|bhp|0|abbr=on}} at 5800 rpm and {{convert|400|Nm|lbft|0|abbr=on}} at 4500 rpm.[9] It had a forged crankshaft.

Applications:

  • 1993–1995 E34 540i
  • 1992–1994 E32 740i
  • 1994–1996 E38 740i
  • 1992–1996 E31 840i
  • 1993–1998 De Tomaso Guarà

Alpina versions

Alpina produced a high compression (10.8:1) version of the M60B40 for the BMW Alpina B10 4.0 (based on the E34 5 Series) and the B11 4.0 (based on the E32 7 Series)[10] and in some B8 4.0 models (based on the E36 3 Series) produced for the Japanese market.[11] The M60 engine produced {{convert|232|kW|bhp|0|abbr=on}} in the B10 4.0.[12]

The engine's displacement was later enlarged to {{convert|4619|cc|cuin|1|abbr=on}} for use in the B8 4.6 and B10 4.6.[13][11] The power output is {{convert|250|kW|bhp|0|abbr=on}} in the B10 4.6 and {{convert|245|kW|bhp|0|abbr=on}} in the B8 4.6.[12][11]

Nikasil damage from high-sulfur fuels

The M60 uses Nikasil- an alloy containing aluminium, nickel and silicon alloy- to line the cylinders bores. In fuels with high sulfur content (such as used fuels sold at the time in the United States, United Kingdom and South America), the sulfur damages the Nikasil bore lining, causing the engine to lose compression.[25] In the U.S. and U.K., sulfur rich fuel is being phased out.[14][15]

BMW replaced engines under warranty and Nikasil was eventually replaced by Alusil.[16]

Nikasil engines are unlikely to be a problem today, as cars with affected engines are off the road or have received replacement engines.[17]

See Also

  • BMW
  • List of BMW engines

References

1. ^{{cite web |title=The Lost BMW V8 and V12 Engines From the 1970s |url=http://www.unixnerd.demon.co.uk/lost_engines.html |website=www.unixnerd.demon.co.uk |accessdate=16 June 2017}}
2. ^1 2 3 4 {{cite web |title=BMW M60 engine |url=http://www.usautoparts.net/bmw/engines/m60.htm |website=www.usautoparts.net |deadurl=yes |archiveurl=https://web.archive.org/web/20131104050626/http://www.usautoparts.net/bmw/engines/m60.htm |archivedate=4 November 2013 }}
3. ^{{cite web |title=M60 engine specs |url=http://www.e38.org/e32/M60EngineSpecs.pdf |website=www.e38.org |accessdate=18 November 2018 |format=PDF}}
4. ^{{cite web|title=BMW M60B40 Engine|url=http://mywikimotors.com/m60b40/|website=www.mywikimotors.com|accessdate=15 June 2017}}
5. ^{{cite web|title=BMW M60 and M62 V8 Engines|url=http://www.unixnerd.demon.co.uk/m60.html|website=www.unixnerd.demon.co.uk|accessdate=16 June 2017}}
6. ^1 {{cite web|title=BMW M60 and M62 engines|url=https://drive-my.com/en/tech/item/1874-bmw-m60-and-m62-engines.html|website=www.drive-my.com|accessdate=15 June 2017}}
7. ^1 2 3 {{cite web|title=SBT 4.0 Liter V8 Engine – M60|url=http://www.e38.org/e32/M60EngineSpecs.pdf|accessdate=16 June 2017}}
8. ^{{cite web|title=Engine specifications for M60 engines|url=http://www.bmwheaven.com/database/engine.php?type=M60#/149|website=www.bmwheaven.com|accessdate=16 June 2017}}
9. ^{{cite web|title=M60 V8 engine|url=http://www.bavtech.com/e34-guides/1995-540i-m60b40-motor/index.php|website=www.bavtech.com|deadurl=yes|archiveurl=https://web.archive.org/web/20140224044714/http://www.bavtech.com/e34-guides/1995-540i-m60b40-motor/index.php|archivedate=24 February 2014}}
10. ^{{cite web|title=E34 B10 4.0|url=http://www.alpina-archive.com/?page_id=180|website=www.alpina-archive.com|accessdate=25 March 2017}}
11. ^1 2 {{cite web|title=E36 B8 4.6|url=http://www.alpina-archive.com/?page_id=59&nmt=B8-4.6|website=www.alpina-archive.com|accessdate=25 March 2017}}
12. ^1 {{cite web|title=ALPINA Automobiles based on BMW 5 Series E34|url=http://www.alpina-automobiles.com/en/product-world/model-history/bmw-5-series/bmw-5-series-e34/#c72178|website=www.alpina-automobiles.com|accessdate=25 March 2017}}
13. ^{{cite web|title=E34 B10 4.6|url=http://www.alpina-archive.com/?page_id=181&nmt=B10-4.6|website=www.alpina-archive.com|accessdate=25 March 2017}}
14. ^{{cite web|url=http://www.epa.gov/tier2/ |title=Tier 2 Vehicle & Gasoline Sulfur Program |website=www.epa.gov |date= |archiveurl= https://web.archive.org/web/20101026223127/http://www.epa.gov/tier2/| archivedate= 26 October 2010 |deadurl=yes}}
15. ^{{cite web|url=https://www.telegraph.co.uk/finance/4472091/No-fuel-like-a-low-sulphur-fuel.html |title=No fuel like a low-sulphur fuel |website=www.telegraph.co.uk |accessdate=6 November 2010}}
16. ^1 {{cite web|url=http://www.usautoparts.net/bmw/engines/nikasil.htm |title=BMW World – Nikasil |website=www.usautoparts.net |date= |archivedate=12 August 2014 |deadurl=yes|archiveurl=https://web.archive.org/web/20140812125532/http://www.usautoparts.net/bmw/engines/nikasil.htm}}
17. ^{{cite web|url=http://www.meeknet.co.uk/E32/Nikasil.htm |title=The BMW V8 Nikasil myth |website=www.meeknet.co.uk |date= |accessdate=6 November 2010}}
{{BMW automotive petrol engines: 1980s to 2000s}}

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