Billy, sounds like a nice rig. I've ridden in them at airports and always marveled at how they probably run constantly 24 hours a day for who knows how long or how many. Usually, on any "new to you" vehicle purchase, it's a worthwhile investment to change out the fuel system for new. Injection pump, injectors, glow plugs, return lines, etc. Around $600 for the whole shooting match. This way, your engine should run for 100K, and you'll never have to mess with it in that time. Of course, if you don't want to lay out the cash for the reliability, and would rather fix or repair daily, at least consider pulling the injectors to have them tested. You'll be a lot happier with your new purchase if it's running smooth and strong, even if only until the next thing wears out.
