Quote:
Originally Posted by paul386
I think you are overreacting a bit... I wouldn't call a fuel pump exactly critical to a modern ICE...
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I hope you're not serious.
Over reacting, How so?
Combustion requires only three
critical components:
Combustible material (usually atomised liquid fuel of some sort)
An oxidising agent (usually oxygen in the air, but sometimes pressurized nitrous oxide)
An ignition source (usually a spark plug, a glow plug or heat of compression)
No fuel pump=
No fuel=
No combustion=
No runny
I'd challenge anyone to start a N55 engine with the HPFP removed, or a N52 with the injection fuel pump removed, or a 20d, 30d or 35d with the VHP Diesel injection pump removed. On a N55 the piezo injectors require approximately 1500 psi (over 100 bar) for operation. How do you supply that without a HPFP?
Of course, you could slowly pour gasoline into the intake manifold and possible get the engine to fire, but I wouldn't advise doing it at road speed.
Come to think of it, the fuel pump is no more "critical" than the pistons, connecting rods and crankshaft.