Gillyg Posted October 24, 2019 Report Share Posted October 24, 2019 Hi there, sorry this is all new to me.! I recently had a reconditioned engine put in my 52ft Springer (about a year ago. The engine was like for like lister lpws4. The last month or so I've noticed that it's very smokey (Black smoke) even on tick-over, much worse when revving. I've changed the oil and filters and also put marine16 in the diesel tank. Any ideas please? Link to comment Share on other sites More sharing options...
Tony Brooks Posted October 24, 2019 Report Share Posted October 24, 2019 Should this be move to maintenance? Link to comment Share on other sites More sharing options...
MtB Posted October 24, 2019 Report Share Posted October 24, 2019 22 minutes ago, Gillyg said: Hi there, sorry this is all new to me.! I recently had a reconditioned engine put in my 52ft Springer (about a year ago. The engine was like for like lister lpws4. The last month or so I've noticed that it's very smokey (Black smoke) even on tick-over, much worse when revving. I've changed the oil and filters and also put marine16 in the diesel tank. Any ideas please? When was the recon engine fitted? One month ago? Point being, has it ever worked correctly, or did it run perfectly well for months or years before this problem arose? Link to comment Share on other sites More sharing options...
mrsmelly Posted October 24, 2019 Report Share Posted October 24, 2019 7 minutes ago, Mike the Boilerman said: When was the recon engine fitted? One month ago? Point being, has it ever worked correctly, or did it run perfectly well for months or years before this problem arose? The op says about a year ago old bean. Link to comment Share on other sites More sharing options...
David Schweizer Posted October 24, 2019 Report Share Posted October 24, 2019 (edited) As far as I know, black smoke from a diesel engine usually indicates unburnt diesel being mixed with the exhaust and is caused by a fuel/air inbalance. i.e:- too much diesel, or not enough air. Have you checked whether the air filter is blocked? Edited October 24, 2019 by David Schweizer Link to comment Share on other sites More sharing options...
Stilllearning Posted October 24, 2019 Report Share Posted October 24, 2019 11 minutes ago, Mike the Boilerman said: When was the recon engine fitted? One month ago? Point being, has it ever worked correctly, or did it run perfectly well for months or years before this problem arose? It looks like it was fitted about a year ago. Link to comment Share on other sites More sharing options...
Tony Brooks Posted October 24, 2019 Report Share Posted October 24, 2019 1 minute ago, David Schweizer said: As far as I know, black smoke from a diesel engine usually indicates unburnt diesel being mixed with the exhaust and is caused by a fuel/air inbalance. i.e.:-too much diesel, or not enough air, have you checked whether the air filter is blocked. I agree - or anything else that may stop lots of air getting into the engine area. Just checked the manual and there does not seem to be separate cold start control that could stick and a sit idles it is unlikely to be a sticky rack in the injector pump. The only other thing is as I suspect it is a direct injected engine that are more susceptible to smoke at low speeds is something holding the engine revs down so the pump is trying to accelerate it by injecting more fuel and over fuelling for the speed it is running at. Is the prop fouled? Link to comment Share on other sites More sharing options...
BruceinSanity Posted October 24, 2019 Report Share Posted October 24, 2019 31 minutes ago, Tony Brooks said: Should this be move to maintenance? Tony doesn’t say he did, so I’ve reported the OP and suggested moving it to BB & M. Link to comment Share on other sites More sharing options...
Athy Posted October 24, 2019 Report Share Posted October 24, 2019 45 minutes ago, BruceinSanity said: I’ve reported the OP and suggested moving it to BB & M. Wish, command etc. Link to comment Share on other sites More sharing options...
MtB Posted October 24, 2019 Report Share Posted October 24, 2019 1 hour ago, Tony Brooks said: Is the prop fouled? Occam's Razor tells us this will be the fault! Does the smoke go away when the engine is revved out of gear? Link to comment Share on other sites More sharing options...
shagrazzle Posted October 24, 2019 Report Share Posted October 24, 2019 Hi....Check your air filter. Link to comment Share on other sites More sharing options...
BruceinSanity Posted October 24, 2019 Report Share Posted October 24, 2019 5 hours ago, Athy said: Wish, command etc. Ta muchly. Only thing is, it’s now in both fora... Link to comment Share on other sites More sharing options...
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