In my recently purchased 300SD, there is diesel fuel starting about half way down the first two injectors and moistening the whole area below these two, but the other injector areas are perfectly dry. I replaced all of the fuel-return lines with brand new lines, but the wet fuel remains. What causes this? I haven't touched the injectors themselves. Do they sometimes start leaking where they are screwed into the engine?

Thanks for any help,

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Gene

1983 300d (133k)
1983 300sd (118k)