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- Cummins Marine Forum Topics
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Hello again
This topic has 2 replies, has 2 voices, and was last updated by
4 years ago
February 12, 2020 at 8:39 am I have been away from this forum for a while, but since I am now helping a friend get his new to him Cummins powered trawler in shape for a 900 mile trip back home, I thought I would reintroduce myself and follow the forum more closely. The boat and engines I am working with is a 42′ Jefferson aft cabin powered by twin Cummins 6BT 210 hp engines. The boat is a 1987 model. He just purchased it and the surveyor noted a few problems/deferred …
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in: Cummins Marine Engines
2 RepliesFebruary 12, 2020 at 9:30 am Could be it. The boat did sit idle for some time before George bought it. Will grease the rudder bearings up and see how that works. Maybe also heat the shaft a little, not enough to affect the packing and see if that doesn’t also redistribute the grease. DavidLast Post by:
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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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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…
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posted: 4 years ago
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Racor filter model for a 6BTA 370
This topic has 10 replies, has 4 voices, and was last updated by
4 years ago May 21, 2019 at 10:10 am I am helping a friend move a boat he has just bought from Baltimore to LI. The boat has no spares onboard so we wanted to get everything before we went down to it. Can anyone tell me what model Racor filter is used for the Cummins 6BTA 370? David
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10 RepliesMay 26, 2019 at 7:21 am The 6BTA 370s in my former 31 Blackfin had Racor 900s. 10 mic filters used, never a problem. The 6BTA 370 in my lobster boat has a single FS1000 with an SMX filter head with squeeze bulb setup.Last Post by:
posted: 4 years ago
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Yanmar 6LY main heat exchanger color
This topic has 9 replies, has 5 voices, and was last updated by
5 years ago February 4, 2019 at 9:04 am Please look at the attached photo. I am helping a friend who is considering buying a 2006 Mainship Pilot 34 with a Yanmar 6LY 370 hp engine. A “Yanmar Certified Technician” who was present at the seatrial said that the main heat exchanger, which is very visible in this pic, is discolored and is a sign of severe overheating. Well the color is certainly not the Yanmar silver grey, but it is entirely uniform and doesn’t look like…
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9 RepliesFebruary 4, 2019 at 7:31 pm I wish I had a much better picture so I could really “SEE”, but even a “fuzzy” view tells me that this engine, when it ran or did run, is being squeezed to the max, plus the signs of a loss of coolant in the combo exhaust manifold/coolant tank are more than obvious…………..Walk away unless someone gets a $25-30K concession on the $$.. The 6LYA is a very good engine, and IMO, is as good as a 370 …Last Post by:
posted: 5 years ago
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Hydraulic steering helm pump
This topic has 6 replies, has 3 voices, and was last updated by
May 22, 2017 at 6:41 am A buddy just bought an old Mainship 34 flybridge trawler. The lower helm looks original and steers ok, about 6 turns lock to lock. The upper helm looks like it was replaced and steers at 10+ turns lock to locks which is unacceptable. It is a Seastar 1.7 cu in per rev pump. The lower helm pump has no identification.. The ram cylinder is about 1.5″ id x 9″ stroke giving it a volume of about 16 cu inches. Using Tony’s hydraulic si…
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6 RepliesMay 24, 2017 at 9:59 am Tony: I helped the owner move the boat 350 miles from Md to Ny and now someone else is helping him move it up the Erie and Oswego Canals. I will contact him to message me some pics. But the upper helm, the one with the excessive locks and some light binding, is definitely a Seastar 1.7 cu ft pump. The ram is a two hose pass throgh rod type with no labeling. DavidLast Post by:
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Hello again
