My '80 300TD just started doing this. If the car sits for more than 3 or 4 hours, or especially first thing in the morning, it smokes HEAVILY (white) and will not idle for a minute or 2. It starts immediately, no glow plug issue, but right away starts to sputter and smoke. After a couple of minutes, it holds idle and doesn't smoke any more than normal.
I have adjusted the valves (I even pulled the valve cover and inspected my valve adjustments again), I drained the 'FUEL' tank(PEH, that's for you buddy), I removed tank filter which was spotless, I changed fuel filters, I have run several tanks of diesel, with biocide/additive. No change at all. I'm at a loss at this point...
Jimmy

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John