Thank you all for the feed back. But first, every thing on the engine is metric. Wikipedia, " The Mazda B-Series became a re-badged Ranger for the 1994 model year…"
I have had lifter, valve problems before with other cars. These are easy to spot because the noise changes with the RPMs. This noise is more of a rattle. I put the stethoscope on top of the engine, side of the engine, front and next to the injectors on the engine… nothing. The engine sounds smooth. On the injectors, I need to rip the stethoscope off my head the noise is so loud. Not really, but it is loud. I will try unplugging them and see if there is a change. Thanks Bing. This poor thing was sitting unused and unwanted with bad oil, filters, wires the works just collecting moss. Now it is under my skin, I want to fix it. Thanks again all. I’ll let you know how it turns out.