Being that I was doing a lot of other engine related things, I decided that I was going to pull the injectors and give a run at cleaning them. I figured worse case was rebuilds which was the other option before starting.

I used a brass fine wire brush and steel wool on the outside along with WD40. Once cleaned up I opened one injector. I used the same steel wool and brass wire brush to clean everything up, keeping it well lubed with WD40.
Put it all back together and all seems fine.

Because I have done so many other things, I have no idea what impact this has had.

I can't see any smoke and looking at the engine at idle, you can't tell if it is running or not.

Don

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1980 300TD-T (82 Turbo and Trans) 159,000 Miles "Jackie-O"
1983 300SD 272,000 Miles "Aristotle"
1987 Jeep Wagoneer Limited - keeps the MB's off the ice and out of the snow
1994 BMW 530it