Stupid question about diesel ignition

alphabetter · Post by **alphabetter** » Sat May 19, 2007 2:54 pm

So,

Petrol engines stop when you turn the ingnition off because it stops the sparks.

Why does turning the ignition off stop diesel engines?

dp bradford · Post by **dp bradford** » Sat May 19, 2007 3:11 pm

... because there's a fuel cut-off valve that's activated when you turn off the ignition.

alphabetter · Post by **alphabetter** » Sat May 19, 2007 3:18 pm

thanks. I assumed it was somehow related to stopping fuel getting in to the engine. Just never really thought about the problem until now.