Exhaust issues

[Hymn]

I have just purchased a narrow boat with a lister engine, it sounds and runs smoothly but it looks like  there are fleck ov deisel coming out ov the exhaust pipe. Any advice would be welcome

[MtB]

Hi Hymn, welcome to the forum. Congrats on your new boat!

 

Which model of Lister engine do you have? People will need to know, in order to advise in any depth.

 

Or post a photo...

 

 

 

Edited March 11 by MtB
Add a detail

[Tony Brooks]

Welcome to the forum, but not enough information. Lister have made so many different models we can't really say much unless we know the model of engine or you post a photo so we can identify it.

 

This is an example only, so don't act on it until we know the engine. The small air cooled Listers, so SL and RL, have a nasty habit of filling their sumps with diesel and that may get oil into the exhaust.

 

On more modern Listers, it might be caused by faulty injectors.

 

In both cases, difficulty in starting, so lots of turning over on the starter could cause this.

 

So model of engine, how easily does it start, any exhaust smoke after a few minutes of running, and how full is the sump?

 

 

PS,  it might be a symptom of excessive crankcase pressure that can be a badly worn engine.

 

 

 

Edited March 11 by Tony Brooks

[blackrose]

2 hours ago, Hymn said:

...it looks like  there are fleck ov deisel coming out ov the exhaust pipe. 

 

Why do you think it's diesel? How do you know it isn't water from condensation in the pipe for example?

[Tony Brooks]

1 minute ago, blackrose said:

 

Why do you think it's diesel? How do you know it isn't water from condensation in the pipe for example?

 

or if it is rainbows on the water lube oil.

[john.k]

Flecks of black (very) oil ..........when an engine runs light ,oil creeps along the surface of the exhaust ,and eventually forms drops on the end of the exhaust..........Some engines were so bad for this,the exhaust would catch fire ...............a very recent example (last week) is Bransons cruise ship in Hobart ...the pall of stinking diesel exhaust covered  half the city ....Branson was spruiking the environmental credentials of his poxy cruises ,and has now got into a huff ,and exited  Oz  for less fussy markets ......with no EPA rules.

[blackrose]

4 hours ago, Tony Brooks said:

 

or if it is rainbows on the water lube oil.

 

Yes but that could also be mainly water with a tiny bit of unburned diesel or oil from the exhaust.