Thanks for showing interest in this topic. I am an undergraduate student and my universities automotive lab is not well equipped. we have a conventional single cylinder kirloskar diesel engine and I am trying to install CRDI system on this engine I have all the necessary equipment such as the fuel rail ,solenoid injectors, high pressure pump.I am trying to connect the crankshaft and the pump using a belt drive system externally your tip is to use a toothed belt but what kind of gear pully should I use?