Yes it's that time of month again, time to be paranoid about your engine Laurie!
When I start up when the car has been in the cold for longer than a day, I get blue smoke on light accerlation for the first minute or two, as I gently drive down the small road I live on, going at about 10 mph. I thought blue smoke was oil, but it must be unburnt diesel, right? Because the engine is too cold to be efficient enough to be burning it? Because it goes away so quickly, and I'm unable to use my glowplugs since one of them is disconnected (it snapped off inside the head). If I use the glowplugs its actually worse; because I have 3 warm cylinders and one stone cold, so it runs like a sack of crap whilst they even out, at least when it starts with no plugs it runs a bit lumpy for a few seconds then smooths out.
So two questions really. Can someone please confirm to me that what I said make sense, and its just unburnt diesel? And secondly is this harming my engine? I can't imagine it likes being run stone cold, but how much is it going to be to remove the head to remove the broken glow plug? It may be worse for me since the car only gets driven Fri-Sun, I'm away during the week.
Thanks in advance,