Originally Posted by ard

Just thinking out loud....


A diesel high pressure fuel pump, is running and pumping fluid under tremendous pressure into a dynamic system which has 6 'outlets' (fuel injectors)


As it runs, at speed, you get a nice rhythmic pulsing- fluid enters, fluid exits...everything is happy. Pump spins... every 40 usec a pulse happens.



But then one injector takes a crap. AS a result, the nice "every 40 usec" rhythm is interrupted.



Does this result in a odd 'torsional vibration' in that fuel pump??


Id replace #6.