Hello all. I am having trouble finding out what the power output of a Lister LD1 should be and at what speed it should happen. I have an operators manual but no mention of output. It is out of a concrete mixwer. Can anyone help me out here? I have one I want to use to drive a heatpump compressor, if it is man enough. Also, has any one experience of using vegetable oil as fuel? Have found a fair amount of research stuff but most of it applies to modern automotive engines and definitly not direct injection! Trust I am not posting off topic here. I do have a D type that helps me mash cider apples if that helps to keep me on side!