Why did they stop making 2 stroke diesels?
Why did they stop making 2 stroke diesels?
These colossal two-strokes were found in heavy trucks, boats, and even industrial applications like big generators and irrigation pumps. Unable to keep up with tightening emissions standards, they were phased out of production in their most glorious forms.
When did Detroit stop making 2 strokes?
1998
In 1998, MTU, which had purchased Detroit Diesel from Penske in 2006, finally ceased production of all two-stroke Detroit Diesels. (The company continues to manufacture the four-cycle Series 60 Detroit Diesel.) Today, there are still thousands of these engines powering boats of all types all over the world.
Is the 6-71 Detroit Diesel a 4 stroke engine?
In reality, the power cannot be completely double, but it will be significantly more than its 4-stroke counterpart. This is how the introduction 6-71 and other GM Diesels made history with their power in a time where gasoline engines ruled. Being a 2-stroke also allowed the 6-71 stand the test of time.
What are the numerals on a Detroit Diesel 6-71?
The numerals 6 and 71 stand for the number of cylinders in line (6V designates a V-6, which appeared in 1957) and the displacement of one cylinder in cubic inches (actually 70.93 cubic inches). Every engine in the 71 series had a bore of 4.25 inches and a stroke of 5.0 inches. Tuned for commercial duty, it produced 165 horsepower.
When to use S-2 in Detroit Diesel 6-71?
S-2 may be used, as long as you are using fuel oils that have less than 0.5 percent sulfur. S-2 in particular should be used if the engine is constantly exposed to temperatures below freezing. Viscosity: 10W-30 and 5W-20 should not be used in the 671 engine.
Why does my Detroit Diesel 6-71 Turbo underperform?
The chart below shows the most common questions asked by owners of Detroit Diesel® engines 6-71 Turbo when trying to troubleshoot why their engines underperform. It categorizes areas of possible malfunction, likely cause and recommended action to bring your new, rebuilt or used Detroit Diesel® engine back to proper operation.
How many engines did the Detroit Diesel 6-71 have?
The grand total for the war years was about 100,000 engines. The 6-71 makes a unique sound because it’s a two-stroke diesel.
Is the Detroit Diesel Series 71 naturally aspirated?
Like most Detroit Diesel two-cycle engines, the 71 Series are equipped with a blower yet still referred to as ” naturally aspirated ” ( SAE designation). These do not have a model suffix identifier: 6-71 is an inline 6.
S-2 may be used, as long as you are using fuel oils that have less than 0.5 percent sulfur. S-2 in particular should be used if the engine is constantly exposed to temperatures below freezing. Viscosity: 10W-30 and 5W-20 should not be used in the 671 engine.
What are the bore and stroke of a Detroit Diesel?
Bore and stroke are the same across all units, at 4 1⁄4 in × 5 in (108 mm × 127 mm). Inline models were famously “symmetrical”, meaning that blower, exhaust, water manifold, starter, and other components could be mounted on either side of the basic block to fit a particular application.
