чугунный блок

[Mosquito]

Мужчины и женщчины, дайте ссылку на источник в котором черным по белому написано, что для американских м52 моторов блок изготовлен из чугуна. спасибо!

[kadrik]

а кто сомневается? =)

[Kenny]

Сообщение от Mosquito

Мужчины и женщчины, дайте ссылку на источник в котором черным по белому написано, что для американских м52 моторов блок изготовлен из чугуна. спасибо!

Взято с википедии:
BMW M52
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BMW M52 engine
M52TUB25 from an E46 323Ci (125 kW/245 Nm)
Manufacturer BMW, Bayerische Motoren Werke AG
Production 1994–2001
Predecessor BMW M50
Successor BMW M54
Class Straight-6
The BMW M52 is a Straight 6 piston engine. Displacement ranges from 2000 cc to 3200 cc. It is a DOHC 24-valve engine, originally introduced with VANOS Variable Valve Timing. It replaced the BMW M50 engine in 1994 and was replaced in 2001 with the BMW M54 engine. The world market engine used Nikasil lined aluminium cylinders instead of a cast iron cylinder block, resulting in lighter engines. While, the American market engine retained its cast iron block due to the sulfur content of available fuel.

In markets with low-sulfur fuel this engine was very highly regarded and the M52 was on the Ward's 10 Best Engines list for 1995 through to 1998. However, there was criticism of the M52 engine in some markets, especially the UK, which had high levels of sulfur in the petrol during the late 90's. Sulfur acts as a corrosive agent against Nikasil and led to a lot of the early engines having premature bore-liner wear. Fortunately this problem was solved in post-September 1998 cars with the introduction of steel cylinder liners, with the designation M52 TU-3. However problems still present in these engines so affected cars of this period should be bought with caution unless the service history verifies that work was carried out to rectify the problem. The American market M52 used a cast iron block, and so, was unaffected by this problem.

[Mosquito]

спасибо!