speedemoneire Posted August 29, 2010 Share Posted August 29, 2010 I have a straight diesel original engine in my landi that blows white smoke when started i am looking for some pointers to help stop it. Quote Link to comment Share on other sites More sharing options...
jbs Posted August 30, 2010 Share Posted August 30, 2010 Injector's Quote Link to comment Share on other sites More sharing options...
Bush65 Posted August 30, 2010 Share Posted August 30, 2010 White smoke is unburnt fuel (black is incomplete combustion from not enough air, and blue smoke is from burning oil). It is normal to get white smoke on start up when the engine is cold. It should clear when the engine starts to warm and shouldn't occur when starting a warm engine. Unburnt fuel could also occur if the injectors aren't atomising properly - that needs to be fixed quick smart as fuel can be washing the cylinder bores, leading to scoring of the bores. Quote Link to comment Share on other sites More sharing options...
RustyNissanPrairie Posted August 30, 2010 Share Posted August 30, 2010 its pretty normal for this engine-providing its the original 2.5NA non turbo engine. They are indirect injection engines in that there is a small pre-combustion chamber or hot spot in the head that the fuel is injected into unlike the direct injection 200/300tdi engines that squirt straight into the combustion chamber. As a result you get unburnt fuel lying in them when you shut the engine off, and also when it starts which thens shows as a puff of white smoke on startup. If it carries on for longer than the initial starting phase and it runs lumpy then its either a glow plug not working, retarded timing, or an injector fault Quote Link to comment Share on other sites More sharing options...
speedemoneire Posted September 3, 2010 Author Share Posted September 3, 2010 The smoke is their even when you start it warm it lasts for about a minute 2 at the most. thanks for your input Quote Link to comment Share on other sites More sharing options...
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