Smoking KAD 42B

[Bbroomlea]

Give it a dose of marine 16 diesel fuel complete , or some other fuel treatment, and take it out for a good run .
http://www.marine16.co.uk/acatalog/Diesel-Fuel-Complete-500ml-60.html

As suggested I suspect the smoke may, in part, be a function of the recent colder weather ?
An engine that starts first turn of the key throughout the summer may well be more reluctant in cold weather or after being rested several weeks .
Check the air filters again . I did have one that was filthy after one season.

Marine 16 is worth a try before you do anything else! Our KAD 32's were as clean as a whistle on the diesel in the tank we bought the boat with (white). When topped up from 1/4 to full with red they started smoking badly - especially upon start up but also on tickover after a good run.

I added Marine 16 and it did improve things but not as good as they were. I have just topped up again for the winter from 1/2 to full, added the Marine 16 dose and its better again.

I wouldnt condemn anything mechanical until you fill with new fuel and treat it!

 

[Keithleask]

It's getting to sound like a real consensus ! Will def give that a try first, what proportions do you add say per 100 litres ?
Many thanks for the help!

 

[Momac]

1 litre of marine 16 diesel fuel complete treats 1000 litres of diesel.

 

[Keithleask]

1 litre of marine 16 diesel fuel complete treats 1000 litres of diesel.

Ok thanks