Fuel injectors cost $106 each on Fastlane. I definetely don't want to replace them unless I'm sure they are bad. Testing them by running the engine with one injector at a time removed from the maifold to observe leak and spray pattern is scarry. The engine would be running while atomized gasoline is more or less directed into a large see-through container

Maybe I could put a temporary "T" on the fuel line rail and attach a pressure gauge. This way I would at least know how long and how high pressure is maintained after shutting downm the engine. This should give me a quick overview whether or not my system is leaking down. Then i'd need a plan for finding the bad apple.

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1972 450SL
1982 300D Turbo