Re: [Amel Yacht Owners] Re: Long block failure on a Volvo D3-110 Amel 54-152
I have the VOLVO D3 110 H version; which I usually run between 1150 and 1300 RPM; burning about 2.5 lph at these rpm’s.
During engine sea trial in June 2018, with 6 people on board, this is what I reported to Bill ROUSE:
New VOLVO is in; engine sea-trial went perfect for 1 ½ hours in windy & choppy conditions. That’s why we didn’t go out in the lagoon (35knts winds) but stayed in the harbor.
Top speed 9.4 but with about 2780 rpm’s. This is 200 rpm below the 3,000 rpms set for the engine.
About 7.3 at 1200 to 1300 rpm’s – this is her sweet spot.
This is part of Bill’s reply:
I would clearly accept the results you had
According to the SYDNEY tech (also services the AUSTRALIAN and NEW ZEALAND NAVY) it is not harmful for the engine to run at these RPM’s. He suggests to vary speed (increase) every 2 hours or so.
Best Regards Teun
AMELIT 54 #128
NOUMEA NEW CALEDONIA
Aug 24, 2018 20:06:10
From: amelyachtowners@... <amelyachtowners@...>
Sent: Thursday, August 23, 2018 6:24 AM
Subject: Re: [Amel Yacht Owners] Re: Long block failure on a Volvo D3-110 Amel 54-152
That’s a great article, Bill, thanks for sharing.
It’s good to see Nigel opening the debate about what needs to happen to adress the issues of modern engines in marine environments. It seems to point towards fuel quality. The corollary being inadaquate onboard filtering.
I wonder what it means for fuel additives and their adequacy for our problems. Naively I would think that any product that dissolves contaminants simply makes them smaller so potentially riskier for high pressure common rail injectors (ie pass through filters but still too big for injectors)?
Another topic is the established advice that a diesel engine enjoys being run at 80%, and failing that, at least push it hard from time to time. How much of this is still relevant to modern engines with better fuel efficiency (so less residue at low regime I presume) and variable geometry turbos?
I don’t have the first clue about those questions but i would like to understand what bits of the marine diesel knowledge base apply to our modern engines.
soon back onboard