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Aftercooler protocol progress
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This topic has 39 replies, has 10 voices, and was last updated by
3 years ago April 26, 2019 at 1:13 pm Iāve sent Tony Athens these same pictures for review, but wanted to get a thread going with my progress for all to see. Twin QSBs. ACs have been serviced 1x by a previous owner (there were 4). I donāt believe they removed the AC and bench serviced. Iāve only done my stbd AC at the moment. Slight green corrosion on both caps. No performance issues pointing me to any problems. Caps came off easily as expected. Top zinc was mostly intact …
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in: Cummins Marine Engines
April 26, 2021 at 11:57 am Roky, you could always give distilled white vinegar a try too. My last aftercooler service interval was rather short so tubes weren’t bad and the vinegar cleaned them up nice.
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posted: 3 years ago
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Is fresh water flushing worthwhile?
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This topic has 55 replies, has 22 voices, and was last updated by
4 years ago January 19, 2017 at 8:08 am Years ago, following Tony’s recommendation, I hooked up fresh water flush fittings to my engine’s strainer and started flushing religiously. Within less than a year I noticed that the engine zincs were holding up much better; in fact after three years they are still going strong. I also believed that I was reducing corrosion on my raw water metal components, particularly the after cooler. Tony has implied that you can double the inte…
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in: General Discussion
July 18, 2019 at 6:33 am Leander Landrum wrote: Hi all, first post. Apologies for reviving an old thread, but Iāve tried multiple searches and cannot find the Tonyās Tips article on fresh water flushing. Itās referenced in the āmarine ageā article but no link and I have had zero luck finding it. Are you looking for a “how-to” ? There is no such instruction as one size does not fit all. Many many variables with some of the key components being your seawa… 55 Replies
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posted: 4 years ago
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Cummins 6CTA 450,8.3,8m
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This topic has 50 replies, has 10 voices, and was last updated by
5 years ago October 24, 2017 at 4:15 am Morning, need some assistance. 2002, 1000 hours, 5 bladed prop, diameter and pitch unknown. Inter cooler serviced and gear cooler serviced in 2012, at 750 hours, report said seriously corroded, flushing and replacement of antifreeze done 2 years ago. WOT rpm unknown or at least that is what I am being told. Hot end of turbo and pipe and small part of inter cooler discolored light brown from heat, impeller ,oil , filters ,serviced regularly since…
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in: Cummins Marine Engines
May 11, 2019 at 10:17 am Hi again, to follow-up on my previous post, we had the aftercooler pressure tested at 30psi, and no leak. So there was no saltwater leak. PHEWW. The core was soldered, we had repaired some broken pipes and put it back the seaboard way with plenty of Metalube only a couple months ago. Now reopening it because I want to replace the old repaired core with a new one just received from sbmar, but was surprised that it was difficult to separate from… 50 Replies
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posted: 5 years ago
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After cooler
This topic has 6 replies, has 3 voices, and was last updated by
5 years ago May 1, 2018 at 6:15 pm Aftercooler in Cummins 6cta 450 HP Diamonds maintenance year 2001 I removed my aftercoolers for maintenance, I found out the have a small drill hole about 1 mm or 2 mm just at the side bottom of the cooler, when installed I felt the air turbo coming out. They are in the same place in both aftercoolers at the same location, see picture. Is this something original from the factory or it was done by the previous owners mechanic? Have someone notice…
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in: Cummins Marine Engines
6 RepliesJune 2, 2018 at 1:23 pm Post good pics.. Use a drill bit and determine the actual size of the hole.. Both Detroit/MTU on the Series 60’s, and Volvo have used this “Technique” to drain condensation over the years.. TonyLast Post by:
posted: 5 years ago
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Fresh water flush kit for Salt Water?
This topic has 13 replies, has 9 voices, and was last updated by
6 years ago
July 9, 2017 at 4:20 pm Tony My boat is in salt water in south florida, I’d like to install a fresh water flush system . 1) Do you have a kit for sale, or can you prepare one for me? 2) do you have a plan or diagram to build one? My engine is cummins 6cta 8.3 450 diamonds My boat sea ray 400 Sedan Bridge year 2001 Fernando DaCosta.
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in: Cummins Marine Engines
13 RepliesNovember 27, 2017 at 4:24 pm Salt water is heavier than fresh water so if you open the sea cock…no,big deal. I personally leave them closed but it’s not imperative…..Last Post by:
posted: 6 years ago
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Fuel meter, Fuel burn
This topic has 3 replies, has 3 voices, and was last updated by
6 years ago November 20, 2017 at 5:31 pm Dear Seaboard Marine I have a 2001 Cummins 6 cat 8.3 I am just getting to learn Diesel engines, this is my first boat with diesel. I am reading in all your topics, you constantly talk about fuel burn, fuel consumption. My engines does not a have a fuel meter, does all the newer Cummins engines have fuel meter included in the instrument panel? How do you know how much an engine is consuming? It is possible to instal a fuel meter in my engines, if…
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in: Cummins Marine Engines
3 RepliesNovember 21, 2017 at 11:28 am Thank you, Tony and Rob, for the explanation. My engines have 1,250 hours. Last time I tested Wot I was making 2,650, my Diver just cleaning the bottom and the props this week, I will check again my WOT, if not I will re-prop to make 2,750 rpm as suggested. My engines are running great, like new, they start right away, no smoke. I just cleaned all the Seawater coolers side as per your recommendation using the Alco Metalube, that was a great pro…Last Post by:
posted: 6 years ago
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Aftercooler protocol progress
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