Most of the time a diesel has a hard time starting when its cool. When they have a hard time starting when hot, it is usually caused by the fuel running back into the tank. Check for a cracked fuel filter housing or a cracked low pressure fuel line. It is possible you have the wrong fuel filter. Install a top quality name brand filter like Wiks or Baldwin that has an anti bleed back valve in the filter.
an air leak in the fuel system, timing out computer fault, lift pump faulty or failing,expensive. injectors dirty or warn, injector pump fault- expensive
it gets hot, and ignites the diesel fuel that is injected by the fuel injectors.
The engine is a 2 stroke 'semi' diesel. Inlet and exhaust are as per 'normal' two stroke diesel but the injected fuel is not ignited by compression alone as in a normal diesel. Instead a 'hot bulb' on the cylinder head is heated with a blow-lamp before starting and heat from this, transferred to a tube in the combustion chamber which ignites the fuel to start the engine. Once running the engine itself maintains the temperature. Often called a Hot Bulb Engine.
The Diesel cycle engine was named after the German engineer who invented it, Rudolf Diesel. A Diesel engine uses two principles: air gets hot when you compress it, and fuel will ignite if it gets hot enough. The engine compresses air introduced into the cylinder to a very high pressure. When fuel is injected it immediately ignites.
Drain it and dilute with gas while engine is hot so that you can burn it out. You will be hard pressed to crank it cold on diesel. If the engine is cole, spray carb cleaner in carb to warm it and burn it clean.
0.25-0.35mm IN 0.35-0.45mm EX --> ENGINE HOT
nox is formed from the hot combustion air coming out of the diesel engine
a petrol engine needs to mix its air and fuel before passing it into the combustion chamber before being ignited diesel has its air mixture heated as the piston compresses it in the combustion chamber then the atomized diesel fuel is injected into the hot air and is ignited.
usually to cause an engine to diesel when shut off, the spark plugs are dirty or burned out.also check the timing
It will dramaticly reduce the fuels flashpoint causing the engine designed for diesel fuel to run hot and cause detination