Diesel engines have a set firing order like a gas engine and require fuel and air to run but that is about where the similarities end. Diesels don't require spark plugs to fire. They have a much higher compression ratio than gas engines do and actually compress the fuel until it burns. The diesel tractor I refered to with spark plugs in it is still a amazing feet of engineering to me. It was a old (50 something model) International Farmall M D. I guess the reason for what they did was simply a lack of diesel technology and this was how there starting problems were solved. This tractor was both a gas and diesel engine in one. It started on gas and after a short warm up you would switch it to diesel. After you switched it to diesel this is where you left it during operation. The gas was only for start up and shut down. It only idled during the gas operation. Pretty neat tractor though. It was a work horse back in the day.
Been nice chatting with you. Drop me a line anytime.
Been nice chatting with you. Drop me a line anytime.