Hi there. I have two shaft drive TAMD 41a's in my Bertram 31' (1989). Both motors developed sooty black smoke emission during the past few weeks and I have replaced both turbos and that fixed the problem immediately. I also recently had the injectors serviced. I refuelled my boat a couple of days ago and added the appropriate quantity of additive ie injectors/exhaust 1ml/1ltr. First run out and both motors blowing black sooty smoke again. Any suggestions on what might be causing this and what I should be investigating??

Thank you in advance.
Glen Ranford - Western Australia

 

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