I will happily admit that I'm no expert of most things mechanical - although Landy ownership is progressively sorting that out

. Yeah, the brass plug is good. I wouldn't worry too much about a little bit of smoke on start up, thats pretty normal for any diesel, when I got mine it was always a bit more smokey than I liked, so I religiously run a product called Chemtec DieselPower through the system - mixes in with the fuel, it claims to keep the injectors clean and other things and since using it smoke has been significantly reduced. But no doubt others will soon reply and let you know some other possible reasons!
How many km's has she got on her? Has she got a good service history etc?
Seano
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