I don't know. Here is his profile -- you can PM him to ask.

Here are pop-testers on eBay.

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Alright - gonna bump my old thread. Really appreciate all the help so far.

I've cleaned the injectors and replaced the nozzles, pop tested, etc and did a valve adjustment... Sporadic 'clack' and nailing still remains on cylinder number one, which is a little fishy to me, because I definitely got it to leave it on a previous injector swap. (maybe a crappy old injector helped hide it?)

My fear then is rod bearing on #1 as this seems to be the one commonly to go. Any other ideas for things for me to try? Mess with IP? Anyone in Atlanta willing to give a listen? Besides this noise, it seems to be running real well but I don't want to keep throwing money at it if it's gonna need a rebuild.

Here's the breakdown:

-cylinder #1 sporadic 'clack.' Sounds just like in this video in all parts. https://www.youtube.com/watch?v=LIPKoSV9IuU
-knock doesn't leave on a diesel purge
-knock leaves when car is fully warmed (driven 15 min), returns after a couple minutes at idle
-nailing on cylinder #1 (you can hear/feel a little tap on every rotation)
-some white smoke at start; very little smoke besides this whether its idling or driving
-oil level good, doesn't seem to be burning/leaking much
-not a lot of blowby; oil cap nudges around a bit, but doesn't 'dance' when sitting loose

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'79 300D