Hey guys, can you please help me identify these 5 engines shown below? These are HO models, and I know the manufacturers of all but one. However, I don't know the slightest thing about diesels, so I'm hoping you can tell me what model of engine the protos would be. Please forgive the childish paint jobs on three of them, I was a kid 30 years ago when I painted them. I might keep them, fix them, or sell them, who knows, but I'd like to know what they are. Thanks for any help.
Mike
Mike