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- Cummins Marine Forum Topics
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Alternator; Rebuild or Sell?
This topic has 3 replies, has 3 voices, and was last updated by
2 years ago
January 12, 2022 at 1:56 pm Was on a long cruise last summer when old alternator went bad. Had to replace it quick to finish the trip so thanks to SBMAR, they shipped us a new 22si. The old one is about 10 yrs old but super clean, as its been in an engine room that also is super clean. It’s one of the ones where Cummins painted it white along with the engine. Now I’ve got this new one that should last more than 10(?) years, so debating whether I should have the…
3 RepliesJanuary 14, 2022 at 9:18 am Thanks for the feedback, it’s just a matter of finding a shop to do it. Seems like there are not as many shops nowadays that will do a rebuild.Ā I’m guessing a rebuild is in the $100-$150 range.Last Post by:
posted: 2 years ago
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Hit a log
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This topic has 25 replies, has 8 voices, and was last updated by
2 years ago August 15, 2021 at 6:01 pm Not a good day today as I hit a submerged log in the middle of the ocean. I knew right away that both props were hit and damage had accured .was able to limp home at idle.hopefully tomorrow boat gets hauled and I can see the damage. Iām thinking at this point just props but could be worse. Iām sure insurance will be involved so I want make sure I cover all my bases.Iām thinking cutlass bearings,struts,shaft seals,shaft checked.is there any way t…
January 5, 2022 at 12:09 pm Thanks Jimmy for the info. I just got back from the boat and after cleaning up the back end of the bearing better I remeasured and indeed Tiara was right at 3 inches od. I agree with you about it not being the problem but I think while everything is out and I have no idea when they were done last it was best to do them. I took my props to my prop guy and learned a couple of things.One was that they werenāt a matched set with the stbd having been…
25 Replies
Last Post by:
posted: 2 years ago
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upgrade 5.9 engines
This topic has 3 replies, has 3 voices, and was last updated by
2 years ago
December 25, 2021 at 5:31 pm hello my 2013 tiara 36 open with Cummings 5.9 at 380 hp .Is it possible to increase to the 425hp and will I increase my speed is it worth to do cost v speed and fuel consumption Please let me know thank you and happy holiday
3 RepliesDecember 29, 2021 at 11:11 am I looked into this a little and it appears that the 330/355/380 are all the same and can be up/down-rated via software.Ā 425 is a different CPL.Ā I think the turbo is different, not sure if anything else is.Ā So I don’t think Steve is correct when he says you can re-program to get to 425?Ā I believe you would need to make additional changes.Ā Hopefully someone can chime in with the list of differences and then you can determine whether the…Last Post by:
posted: 2 years ago
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Help Identifying Alternator
This topic has 1 reply, has 2 voices, and was last updated by
2 years ago December 29, 2021 at 5:15 am Looking to figure out the output, make, and model of my alternator. My engine is a 6BTA 370.Ā <br /><br />
1 ReplyDecember 29, 2021 at 7:02 am Cummins/Delco 24SI—-Most had 130A or 160A umits.. Interchanable …….A 21/22Ā will also also fit.Last Post by:
posted: 2 years ago
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I want to instal a Cummins in a 25 ft center console
This topic has 6 replies, has 3 voices, and was last updated by
2 years ago December 2, 2021 at 9:02 am I have a 25 ft v hull boat Iām restoring and I would really like to ditch the outboard motor and put a diesel inboard under the center console but I have no idea about what size motor or transmission as well as prop and rudder sizes I would need. The hull weighs approximately 3000lbs. I was thinking a Cummins 4BTA because of the compact size since it would be under the center console. The hull is literally a blank canvas at the moment so Iām ver…
6 RepliesDecember 7, 2021 at 6:33 pm Roger – done.Last Post by:
posted: 2 years ago
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New Wet Exhaust 90 270 Cummins
This topic has 1 reply, has 2 voices, and was last updated by
2 years ago December 5, 2021 at 3:33 pm Hi I built new exhaust wet elbows for our 2002- 270 Cummins 6BTA 5.9M. My question is how would I calculate the amount and size of holes that are drilled in these jacketed elbows to main the required flow from sea water pump and not restrict too much. THANK YOU FOR ANY HELP
1 ReplyDecember 6, 2021 at 5:57 pm Post some good pics of what you built.. All views of the mixer and end area so I can “see” what you came up with.Last Post by:
posted: 2 years ago
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SBMAR Store Sale
This topic has 1 reply, has 2 voices, and was last updated by
2 years ago December 4, 2021 at 12:09 pm I was wondering if SBMAR was planning on having their sale this month or waiting until March?
1 ReplyDecember 4, 2021 at 3:53 pm I do not think so…………Our biggest concern now is availabity of the “stuff” we provide, and trying to contol $$ increases .. If I said it’s close to out of control, I would not be exaggerating..We just waited a solid 5 weeks for a ship sitting off Long Beach to unload. TonyLast Post by:
posted: 2 years ago
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Piping material for Fuel Filtration Plumbing
This topic has 2 replies, has 3 voices, and was last updated by
2 years ago December 2, 2021 at 5:58 am Introduction: Tony’s Tips on multi-stage diesel fuel filtration brought me to the Seaboard Marine website. Specifically, I was doing a DDG image search for how others plumb and support a multiple canister, multiple step down diesel fuel filtration system for the bulk transfer of fuel from a 100 gallon steel transfer tank to the onboard tank of the device using the fuel… be it a boat or a backhoe. Tony’s beautifully arranged, s…
2 RepliesDecember 2, 2021 at 7:18 pm Charles, That’s quite the post, but I’m kinda lost here,………..1st thing is—–I am curious about what engine might you be using that would require 3/4″ ID fuel plumbing “throughout” ? Also, why are you buying componets to design your sysem that are obviously made to on-shore commercial fuel dispensing facilities? Nothing wrong with that, but please explain the reasoning here…&#…Last Post by:
posted: 2 years ago
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Barry motor mounts
This topic has 3 replies, has 3 voices, and was last updated by
2 years ago November 21, 2021 at 2:41 pm Tony Two questions first I see the mounts are out of stock for my 480 ce. I know know mine are old but at this point only 2 are compressed and the rest look in good shape.Never changed a mount but It looks pretty simple.would the one Iām replacing have to be supported or would the other three work during the change.Bill
3 RepliesNovember 24, 2021 at 2:41 pm Thanks Rob good to see how you approached it. I think I only need to replace two mounts based on what Tony said .Still waiting to see if insurance will help in any way.Iāll probably do the work in March if insurance doesnāt come through. I may take you up on your offer but I think I have most of what you showed. BillLast Post by:
posted: 2 years ago
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6BT 5.9 Engine Stalling
This topic has 3 replies, has 3 voices, and was last updated by
2 years ago November 16, 2021 at 1:13 pm I have a 210 hp Cummins 6BT 5.9 engine in my boat. For a couple days this past summer, I heard a slight rev from the engine a couple times. Then it revved up hard and came down but kept running. A short time later, it revved up hard and quit. I turned the key switch and could not get the engine to turn over or make any sound. I changed the racor. But turning the key resulted in no sound such as starter solenoid clicking or buzzing from the…
3 RepliesNovember 17, 2021 at 2:10 pm The buzzer is powered by the power that is fed through the harness to the instruments via that engine mounted circuit breaker that Tony referenced. Whether or not the buzzer sounds is controlled by the PCB at the helm instrumentation. Can you elaborate more on your comments about the engine “revving hard” ? What type of controls do you have ?Last Post by:
posted: 2 years ago
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Understanding exhaust hose & pipe dimensions, and making fiberglass tubing
This topic has 11 replies, has 5 voices, and was last updated by
2 years ago November 3, 2021 at 4:01 am I know Tony has a nice article which mentions some of this @ “https://www.sbmar.com/featured-article/everything-you-need-to-know-about-marine-exhaust-systems/” but I am still not 100% clear. I have a 4ā hose coming off my yanmar 316 6lpa mixing elbow (aftermarket cast 316 stainless, but identical to oem part in dimensions). So, this exhaust hose inside diameter is 4ā. If I install a lift muffler after this hose, therefore the ou…
11 RepliesNovember 15, 2021 at 12:37 pm Right now the exhaust exits out the side of the boat, but close to the transom. I’m not sure that having a shorter run, if it doesn’t utilize any more height, can help the backflow situation. I have a couple ideas working with, which I will share, just didn’t get chance to do any work on it this last weekend.Last Post by:
posted: 2 years ago
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Marine diesel storage tank filtration
This topic has 2 replies, has 2 voices, and was last updated by
2 years ago
November 12, 2021 at 1:35 pm Hey everyone! Was referred to here by SBMar for guidance on my question – This site has been a fantastic resource and helped me with taking care of our 1913 wooden motor yacht https://www.sbmar.com/articles/marine-fuel-filtration-the-seaboard-way/ I was wondering – has anyone performed this technique with diesel tank filtration on land? We have a 3000 gal diesel tank at our marina that’s approaching 20 years old and has never …
2 RepliesNovember 15, 2021 at 8:35 am Thank you David! Our tank does hold fuel for a long time, our marine fuel tank exchanges 4-5k gallons a month, however in the diesel we consume maybe 200-300 gal a month Thank youLast Post by:
posted: 2 years ago
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6CTA 450hp High temp alarm, temp gauges, wrong
This topic has 5 replies, has 3 voices, and was last updated by
2 years ago
October 18, 2021 at 12:35 pm Hi all, 2001 6CTA 450HP Diamonds. Complete cooling system maintenance done, all coolers, after cooler, impellers, fresh coolant. During bay test all temps good up to 2150-2200rpm, past that temps began to creep up. At 2500-2600rpm overheat alarm comes on constantly until rpm dropped to under 2300rpm. VDO gauges. IR gun reading on thermostat housing indicated 165 degrees port, 172 degrees starboard. It is my understanding that the gauge &…
5 RepliesNovember 14, 2021 at 9:26 am I won’t comment on the panels and the boards that drive them. About the I.R. gun. How are you using it. Are you aware of the cone of reading meaning all guns have a range where they see only what you want it to see/read. If you are too far back then the gun will see a much larger area than intended and will average a much to large area resulting in an incorrect reading. Were you shooting at the base of the temperature sensor? Did…Last Post by:
posted: 2 years ago
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Sea strainer
This topic has 8 replies, has 6 voices, and was last updated by
2 years ago July 15, 2021 at 2:24 pm Hi this is my sea strainer on my 98/99 5.9 6bta Really hard to get to for fresh water flush or to clean basket due to exhaust sitting right above it. Any suggestions thx Tony and crew – Lewis
8 RepliesNovember 14, 2021 at 7:20 am I have a similar issue with the Sea Strainer being under the exhaust, and I cannot get the basket out to clean. Moving the strainer is on my “to do” list. For Now I use a Wet Vacuum to clean out the basket as needed. ClintLast Post by:
posted: 2 years ago
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Diesel engine with separated block part on each cylinder
This topic has 1 reply, has 2 voices, and was last updated by
2 years ago November 10, 2021 at 3:32 am Does anyone know any manufacturer/ supplier that offers diesel generator engines (about 1000 KW-1200KW) with separated block for each one cylinder individually? Any manufacturer/ supplier with such products could be registered on https://www.allaboutship.com/. Kind Regards, allaboutship.com Live chat & messaging channel
1 ReplyNovember 10, 2021 at 7:38 am The Cummins QSK38 meets that spec — It is called “individial cylinder heads” EPA T3 & T4Last Post by:
posted: 2 years ago
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Dripless shaft coolant hose vs Fresh water flush
This topic has 2 replies, has 2 voices, and was last updated by
2 years ago
November 1, 2021 at 8:06 pm Hello Members, Question: Can the coolant hose for a PSS dripless shaft partially defeat a fresh water flush system? Details: 16 months and 110 engine hours ago, installed a new gear oil cooler with two 3/8 zincs. It also has a barbed connection to the PSS dripless shaft cooling hose. 14 months and 100 engine hours ago, I installed the SBMAR fresh water flush kit on my Cummins 5.9 6BTA JWAC and use it religiously! The dripless shaft seal coo…
2 RepliesNovember 7, 2021 at 9:19 pm Hello Tony, Thanks for your attention to my question. Attached is the information you suggested I provide (diagram and photos). Boat: 2005 Nordic Tugs 32 Engine: 5.96BTA 270 HP JWAC Gear: TwinDisc 5050SC Gear Oil Cooler: From SBMAR, with twin zincs and port for dripless shaft cooling on downstream side. Fresh-water flush: I keep the seacock open, and prior to starting engine, I connect a dockside hose with very good pressure (not measured) and …Last Post by:
posted: 2 years ago
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Racor 900 series fuel exit vacuum gage fitting
This topic has 6 replies, has 3 voices, and was last updated by
2 years ago
November 2, 2021 at 7:48 am Adding vacuum gauges to my Razor 900 filters. Gauges will be mounted at filter exit, not on top at T handle. Looking for the 7/8″ SAE O ring male X 3/4″ NPT female fitting with a 1/4″ NPT hole for gauge. Anyone know where I might get two oof these? Thanks
6 RepliesNovember 7, 2021 at 5:56 am Thanks for looking. I’ll go find some and drill/tap hole if have to.Last Post by:
posted: 2 years ago
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Understanding Lift Muffler Operation
This topic has 3 replies, has 2 voices, and was last updated by
2 years ago November 2, 2021 at 1:48 pm I have been pouring over Tony’s articles on exhausts, wanting to improve my own. I would like to understand the lift muffler operation a bit more. Designing a Marine Exhaust System When the engine is in operation, how full is the lift muffler? Does the pressure of the exhaust gases keep it practically empty, so it is only the water draining down the hose from the mixing elbow which might drain into it when the engine is shut off? As if i…
3 RepliesNovember 3, 2021 at 2:47 am Thanks Tony. While I read all these articles a few years back, they seem a lot clearer to me now with the benefit of a bit of experience. I understand better now, so it looks like what you have labelled as the “muffler dip tube” should extend down fairly close to to the bottom of the lift muffler, say 3 or 4 inches off the bottom, and the water level would stay in line with the bottom of the muffler dip tube when engine is on. Does a…Last Post by:
posted: 2 years ago
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SMX Fuel Filter
This topic has 3 replies, has 2 voices, and was last updated by
2 years ago
October 30, 2021 at 12:24 pm Hello, I wanted to ask what the best SMX filter option is for a generator feed line. I currently have a Racor 500FG for the generator and a SMX Double with a FS19513 and FS1000 for the main engine. I would like to switch the Racor out to SMX for the ease of maintenance and to have just one style of replacement filters. I am thinking the SMX kit that is the single SMX601 head with a FS1000 filter. I am not sure if the FS1000 by itself is the …
3 RepliesOctober 30, 2021 at 6:20 pm Thanks tony. I am going to go with the SMX single FS1000 with the 601 head so i can mount it to the back board.Last Post by:
posted: 2 years ago
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Bayliner 4087 Fuel problems
This topic has 1 reply, has 2 voices, and was last updated by
2 years ago October 27, 2021 at 12:39 pm This is what I wrote back on Oct 10th when I was chatting with Corey from SB Marine. Here is my scenario. At the end of september my wife and I bought a 1999 Bayliner 4087 with twin Cummins 6bta 5.9 270 hpā¦they only have 800 hrs on them and AAA marine did a full mechanical survey before we took delivery. All oil samples came back great and only a few minor issues, we left Oxnard on the 30th of september and started our journey heading back to Na…
1 ReplyOctober 27, 2021 at 3:31 pm I’d start with tank vent and fuel pickup.Last Post by:
posted: 2 years ago
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Alternator; Rebuild or Sell?
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