I am new to the Mercedes scene, so excuse me for improper lingo. I own a Isuzu pup diesel, and several Ford 7.3L so I am familiar with diesels. I just bought 1978 300D 5-cylinder. The fella I got it from had put on another put but never got it to start after that. It turns over. The metal injector lines look misrouted to me and I would like to verify the timing. Are there any DIY's and pictures for checking the lines and getting the injection timing right. Thanks