mk1_orion_boy

Hi,
Does anyone know how a diesel engine stops as theres no electronics really like spark plugs etc?
Does it cut the power to the injection system?
Probably somthing simple...
Thanks

graemewelch

there is a solinoid on the diesel pump. it cuts the fuel off when you turn ignition off

akito-man

yep fuel starvation

SPADGE

Just out of curiosity can anyone tell me exactly how a diesel engine works?

cahzz

ive got a clio DCi 65 for a daily runabout im desperate to get more power out of it!!! does 70 mpg easy

Jim Galbally

www.howstuffworkd.com

really good description of how a derv engine works spadge

Jamz

or even http://www.howstuffworks.com/

Jim Galbally

m1ne r the l33t sp33k URL

Disabled Account

OK Spadge, from memory it is something like this.....................

When a gas is compressed, its temperature rises, a diesel engine uses this property to ignite the fuel. Air is drawn into the cylinder of a diesel engine and compressed by the rising piston at a much higher compression ratio than for a spark-ignition engine, up to 25:1. The air temperature reaches 700–900°C, or 1300–1650 °F. At the top of the piston stroke, diesel fuel is injected into the combustion chamber at high pressure, through an atomising nozzle, mixing with the hot, high-pressure air. The resulting mixture ignites and burns very rapidly. This contained explosion causes the gas in the chamber to heat up rapidly, which increases its pressure, which in turn forces the piston downwards. The connecting rod transmits this motion to the crankshaft, which is forced to turn, delivering rotary power at the output end of the crankshaft. Scavenging (pushing the exhausted gas-charge out of the cylinder, and drawing in a fresh draught of air) of the engine is done either by ports or valves. To fully realize the capabilities of a diesel engine, use of a turbocharger to compress the intake air is necessary; use of an aftercooler/intercooler to cool the intake air after compression by the turbocharger further increases efficiency.

SPADGE

Nice one guys i now know something i have wondered about for years

morto

when you think abit back diesel engines were abit of a joke but nowadays ther just as fast as petrol and more reliable and have loads more torque on top gear thay put up one of bmw new top diesel against the same power petrol and the diesel was nearly as fast around the track i think when the diesel turbo came a new bread of car was born, and no longer was a diesel slow , im looking at the focus tdci, and just to mention the diesel bmw thay put around the track was faster than the focus rs

andy

GARETH T

there sadly is a fundimantal problem with derv,,

IT BURNS SLOW

which means you cant get a derv too rev

Twellsie

iTrader: (1)

has any one seen the derv Audi R8's in the LeMans series??? by far the fastest things on the track.
200 mph all day long sounds pretty good to me

Thrush

iTrader: (1)

AROFL

j00d, 1337 sp33k L1ek OMfG, 1337 i5 teh s3x, lolz.... R j00 teh l-l4x0r? Lolz....

Pez71

Why do you need it to rev? If its got enough torque to pull a house down, you wont need all those extra revs. Low down grunt is what its all about, ask the Americans