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Around 18:1 will give a running diesel on a engine such as an old perkins 4203

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Q: What is the minimum compression ratio for diesel engines?
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2008 ford diesel unleaded fuel in tank?

Diesel engines have a much higher compression ratio than gasoline engines. Therefore, you need to drain all the gas you can out of you tank and fill it with diesel.


Explain why diesel engines dont use spark pulgs?

The compression ratio is high enough to combust the diesel without the aid of sparkplugs


Why do diesel engines ignite even though they have no spark plugs to ignite this mixture?

Compression and heat. The fuel/air mixture is compressed to such a high level as to get hot enough to cause the mixture to self ignite. Gas engines require a spark to ignite the fuel. Gasoline engines have a compression ratio of 8:1 to 12:1. Diesel engines have a compression ratio of 14:1 to 25:1.


What is the compression ratio of NASCAR engines?

The compression ratio for NASCAR engines is limited to 12.0:1.


What is the compression ratio of and engine?

Compression ratio is the difference in the volume of a engine cylinder between when the cylinder is at it's largest volume, compared against when the cylinder is at it's smallest volume. Gasoline engines use 8:1 to 12:1 compression ratio. Diesel fuel engines use 14:1 to 25:1.


What happens if you put unleaded gasoline in a diesel car?

Diesel engines have a much higher compression ratio than gasoline engines. Therefore, you need to drain all the fuel you can out of your tank and fill it with diesel. Gas in a diesel engine will go boom, and destroy your engine.


Does disel engines have a higher cc compared to petrol engines?

No..the compression ratio is much higher eg a small petrol engine will have a ratio of 8:1 where a diesel small engine has around 17:1..


What is the compression ratio of a diesel engine?

The compression ratio of a Diesel ranges from 14:1 to as high as 25:1. I agree just depends on engine.


Are VW 1.9 liter TDI interference engines?

Gasoline engines can be designed so that even if the timing belt breaks, the valves will not contact the pistons, regardless of what position the camshaft stops in (a so-called non-interference engine). Not all gasoline engines are non-interference ... but they can be. This is impossible with a diesel engine because of the high compression ratio, and the small space between the piston and head in order to achieve that compression ratio. All 4-stroke diesel engines are therefore interference engines.


What is the fuel to power ratio in diesel engines?

In diesel engine fuel to power ratio is 1:50


What is normal compression for a Ford 7.3L diesel engine?

It has a compression ratio of 17.5:1


Why diesel driven vehicles are noicy?

Extremely high compression ratio is the reason they are so noisy, but newer diesels do not sound significantly louder than gasoline engines.