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The 3.9-liter 4B/4BT/4BTA Cummins is categorized under the B Engine family alongside the 5.9-liter 6B/6BT/6BTA Cummins diesel engines. The 3.9 is an inline four-cylinder, either naturally aspirated (4B) or turbodiesel (4BT/4BTA), which was popular for many step van applications including bread vans and other commercial vehicles. Additionally it ...
Cummins Inc. is an American multinational corporation that designs, manufactures, and distributes engines, filtration, and power generation products. [2] Cummins also services engines and related equipment, including fuel systems, controls, air handling, filtration, emission control, electrical power generation systems, and trucks.
Energy fatalities can occur, and with many systems deaths will happen often, even when the systems are working as intended. Historically, coal mining has been the most dangerous energy activity and the list of historical coal mining disasters is a long one. Underground mining hazards include suffocation, gas poisoning, roof collapse and gas ...
For example, in an automobile, the failure of the FM radio does not prevent the primary operation of the vehicle. It is recommended to use Mean time to failure (MTTF) instead of MTBF in cases where a system is replaced after a failure ("non-repairable system"), since MTBF denotes time between failures in a system which can be repaired. [1]
The engine was a four valve-per-cylinder DOHC V16 with a 54° angle between cylinder banks and one Schwitzer-Cummins supercharger per bank supplying air at 10 psi (68.9 kPa). [47] The original bore and stroke were 4.375 in × 4.50 in (111 mm × 114 mm), but Wood's request for an even larger engine resulted in the bore being raised to 4.4375 in ...
Newer timing belts generally only require replacement every 100,000 miles, or even more in some cases, that's at least 4 years of use for many people! Anyway, if OHC systems were so unreliable, so expensive and so difficult to maintain there would not be so many 15-20+ year old OHC engines with close to or over 200,000 miles on the road showing ...
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It is possible to extend the problem to ask how many people in a group are necessary for there to be a greater than 50% probability that at least 3, 4, 5, etc. of the group share the same birthday. The first few values are as follows: >50% probability of 3 people sharing a birthday - 88 people; >50% probability of 4 people sharing a birthday ...