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The 7.3 and 6L fords the injectors did run on oil. They were a Cat design. They were like the old diesel pumps found on the Cummings engine in that you couldn’t hurt them. The problem with both of them they were good for one squirt of fuel per cycle. The Cat injectors could do 2 squirts per cycle. You probably noticed how noisy they were and this is the reason. The new Bosh system is good for several squirts per cycle. What they do is inject a small amount of fuel to get the combustion started to prevent the diesel rattling then inject enough fuel to make the power called for. They run off electricity moving a small nozzle that can be opened very fast.
Lynwood
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