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- Cummins Marine Forum Topics
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Chasing down jumpy gauges – protecting connections.
This topic has 5 replies, has 3 voices, and was last updated by
5 years ago September 19, 2018 at 6:49 am 1999 Cummings 6BTA 5.9 M-3. I’m chasing oil gauge issues on both engines. At low RPMs (<1,000) no issues, all gauges indicate rock steady. When pushing up to say 2,000 one or both gauges will start to swing erratically, and eventually fall to zero. This typically leads to an engine alarm in a few minutes (though not always – not sure why). Jogging the throttles to bring RPMs up and down tends to bring the gauges off the zero,…
5 RepliesSeptember 30, 2018 at 12:29 pm WD-40 and brushes followed by white Li grease (I’ve got a tube of that I use on my garage door). I’ll let you know how it goes.Last Post by:
posted: 5 years ago
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Vessel View Fail
This topic has 12 replies, has 3 voices, and was last updated by
5 years ago June 22, 2018 at 1:20 am I have attached a photo of my vessel view display looking pretty sick. It is just showing horizontal white lines across the screen. Any one seen this before? Could it be a connection or will it need replacing? I have unplugged the connections on the back which has made no difference.
12 RepliesSeptember 24, 2018 at 3:23 pm I have attached photos of SMX up and running, very happy! I have also attached a photo of the old smart craft wiring. As Corey says, one of the benefits of this system is its simplicity. The space under my helm station used to be a mess of tangled wires, now it is relatively simple and uncluttered.Last Post by:
posted: 5 years ago
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Cummings 210HP Twin engine; RPM tachometer
This topic has 1 reply, has 2 voices, and was last updated by
5 years ago September 3, 2018 at 2:55 am HI everyone, I am pretty much new to power boating; so you can guess I do not know much about engines and instrumentation. Everything was running smoothly until I had my engines serviced. When I start them the RPM tachometer for one engine fluctuates wildly from 600 to 2000 RPM, also under load. The engine runs fine. I have ruled out a faulty tachometer because the one in the boat and the one on the flybridge are doing the same thing. Has anyb…
1 ReplySeptember 3, 2018 at 12:06 pm What you have that sends the signal to the tach is either faulty, needs to be reset, or has a bad wire connection.. Most likely you have a magnetic pickup??.. How To Install a Magnetic Pickup to Drive a Tachometer Magnetic Switch Location on your B Series CumminsLast Post by:
posted: 5 years ago
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Tachometer Question
This topic has 5 replies, has 3 voices, and was last updated by
5 years ago
August 16, 2018 at 2:33 pm Hi I have a 2000 Tiara 31 Open with Cummins 330B motors Can anyone confirm where the tach signal comes from? Took my tachometer in for rebuild and they say my tachs are getting signal from something other than the magnetic pick up I havenāt seen any variation to this anywhere Iāve read. Anybody know if they used anything else ? My controls are all manual no ECU or anything Any insights would be appreciated
5 RepliesAugust 19, 2018 at 3:13 pm Here are some not sure what Iām looking forLast Post by:
posted: 5 years ago
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1997 6BTA 5.9 w/ ZF Hurth
This topic has 2 replies, has 2 voices, and was last updated by
5 years ago July 14, 2018 at 11:46 am I have a 1997 Maxum 4600 SCB with two Cummins Diesels. Trying to locate the RPM sensor. Don’t know if it was placed on the alternator or the transmission. Do not know what it looks like. Been all through the internet and pictures. But cannot find just a flat out picture or drawing or comment that says it right here. We bought a Livorsi DC4000DA to replace the old gauge and I know mean that means Alternator driven. They are pegging past the…
2 RepliesJuly 24, 2018 at 8:02 am Found it. On the flywheel under the air cleaner. Thanks for the links. That helped.Last Post by:
posted: 5 years ago
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Exhaust heat sensor
This topic has 20 replies, has 4 voices, and was last updated by
5 years ago June 18, 2018 at 3:45 am Iāve seen discussion of little heat pucks that can be used as additional overheat alarms. My northern light generator started to shut down the second the shutdown bypass/preheat switch was released. Investigation showed a bad temp switch which I am replacing but it also showed my exhaust temp switches wires were. It and corroded. Itās brutal access and the exhaust switch wires go into a harness thatās going to unleash more demons if I cut into…
20 RepliesJune 28, 2018 at 1:37 pm Cut some test studs and JB Weld them to a metal test piece.Last Post by:
posted: 5 years ago
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external alarm buzzer for analog panel
This topic has 6 replies, has 4 voices, and was last updated by
5 years ago
May 22, 2018 at 6:31 am I have an analog alarm panel from a 8.3 that the buzzer has failed on, i replaced the board with one from a spare motor and all is well. My question is could i solder a couple pigtails onto the board with the bad buzzer and connect a remote piezo buzzer that would be located in area that was easier to hear if an alarm is present? Fellow running the boat is about half deaf and can’t hear the alarms when engine is over an idle. Not sure wh…
6 RepliesJune 10, 2018 at 3:30 am As an update I re-installed the alarm circuit board and it works great, though i had to try two different buzzers. The first unit would not work at the lower voltage (9.8volts), the second unit tried, https://www.amazon.com/gp/product/B00HR6P9QU/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 worked great and will wake the dead. A side note is that if anyone is suffering with low oil pressure alarms when engine is pulled back to an idle, which …Last Post by:
posted: 5 years ago
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Smartcraft Transducer
This topic has 2 replies, has 2 voices, and was last updated by
5 years ago
May 24, 2018 at 12:22 pm I am looking for info on depth transducer installation on a smartcraft diesel view with QSC 500’s. The transducer I received from Mercury is for older 8.3 engines with a flat 4 pin connector that is labeled to connect to the diagnostic port. The QSC has a round port. There is a transducer connector on the Medusa harness which does not work even if connected to 12V. Does anyone have any opinions on how or even if this can be done? These are…
2 RepliesMay 26, 2018 at 11:46 am Thanks for the reply. I know they are outdated but they still work so I would like to put off replacement until needed!Last Post by:
posted: 5 years ago
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Smart craft needs calabration
This topic has 1 reply, has 2 voices, and was last updated by
6 years ago April 16, 2018 at 12:07 pm I own a 2005 searay 39 dancer with cummins 370’s. While under way with engine syncs on, (only using starboard throttle) lost port rpm, switched off syncs, used both trottles ok. Traced to broken wire in harness connector under starboard aftercooler. Engine syncs now work. When i start engines, smart craft says(must perform dielsel calibration). I tried to calibrate will not let me. If I turn start rocker switch on& off 1 time quickly, …
1 ReplyApril 18, 2018 at 9:01 am Tell me EXACTLY which engines you have… if you’re not 100% sure, send me serial numbers. I would also like to see a picture of your SmartCraft display and the C-Cruise rocker panels so I can see exactly how you’re setup before moving too much further… Thanks, CoreyLast Post by:
posted: 6 years ago
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SMX Digital 6CTA external alarm
This topic has 6 replies, has 3 voices, and was last updated by
6 years ago March 14, 2018 at 4:32 pm I want to hook up an external alarm to the SMX Digital View display for my Cummins 6CTA 8.3. From the webpage it looks like the alarm lead closes to ground when there is an alarm. Can I hook that lead (pin3) up to an external buzzer ground and run a fused positive lead to the positive end of the buzzer? Thanks
6 RepliesMarch 17, 2018 at 9:31 am I see, yes you are correct that the panel set points for the ED-1/ED-X display on a 480CE cannot be changed because that set-point number is determined by the engine ECM controller… not the display. Think of your display as a “monitor” and nothing else. The displays we use (SMX DigitalView) to indicate instrumentation on mechanical engines uses software that Seaboard developed in-house and therefore we have much more flexibilit…Last Post by:
posted: 6 years ago
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Analog to NMEA 2000 converter/network
This topic has 2 replies, has 3 voices, and was last updated by
6 years ago
January 9, 2018 at 11:55 am I will be upgrading my electronics to Simrad Evo3s, and want to display engine information on them. I have 4BTAs with VDO OceanLine gauges that work great and I want to keep them. I assume I will be setting up a small NMEA 200 Network. I am looking at the following converters, VDO Aqualink, Noland RS11, AlbaCombi, Actisense EMU-1. Does anyone have any experience in this type of an install or have used any of the units I mentioned. I’m…
2 RepliesJanuary 22, 2018 at 9:34 pm I installed a Noland MD33 for dual engine analog (directly from the analog gauges) to NMEA 2000 conversion on my mains and a Noland RS-11 in the engine room to send gauge data from my generator and turbo boost sender to the NMEA 2000. Works great. It requires some fiddling around to calibrate but once you get the hang of it it works very well.Last Post by:
posted: 6 years ago
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Bosch K1 Alternator wiring
This topic has 8 replies, has 2 voices, and was last updated by
6 years ago January 3, 2018 at 9:45 pm What is the D+ lug on the K1 Bosch alternator for? It was jumped over from the B+ lug when I inherited this boat. It had a parasitic drain on the battery that was identified as the alternator. First suspicions and advise was that a diode was bad. But, I am now thinking the jumper wire from the D+ lug was the cause. I “now” understand this to be the field exciting lug also used in conjunction with a charge indicator light. The light f…
8 RepliesJanuary 21, 2018 at 3:23 pm Glad you sorted it out.. Yes, an LED will accomplish this too. TonyLast Post by:
posted: 6 years ago
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Alternator 22sl constantly charging
This topic has 5 replies, has 2 voices, and was last updated by
6 years ago November 30, 2017 at 7:15 pm I have twin Cummins 450s 6cta 8.3 on a large boat. My batteries where bubbling out of the vents. 8d x 7. I have an inverter bank of two, house bank of two, one for each engine and one for my thruster. To start my alternator was swinging every few seconds from 14.7v to 12.7v I changed all my batteries and disconnected the heater for that engine. The swim stopped now itās just charging. The batteries should be charged my inverter ran all night…
5 RepliesDecember 3, 2017 at 4:20 pm I really appreciate that I can post these questions and to have someone of your caliber to answer. Under Tonyās tips in the electrical section you have typical dc distribution. I have a manual switch on the combiner and I disconnected it. When I check voltage with the engine running thereās only one battery being charged. Iām getting the leads labeled. I ran each engine and checked the voltage on the batteries. The engine batteries are stand al…Last Post by:
posted: 6 years ago
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DIgital Voltmeter install question?
This topic has 11 replies, has 3 voices, and was last updated by
6 years ago
November 25, 2017 at 3:38 pm I’m about to install a pair of SMX Digital Voltmeters to a pair of 8Ds. I’m installing home runs +/- for both but…… Both batteries go to a common ground bus, from which the whole boat is grounded. Is there any value to having one of the DVMs have a switched negative which goes to the ground bus so I can see the difference between battery egatuve and ground negative? Would that help me in chasing a ground leak if one dev…
11 RepliesNovember 28, 2017 at 6:18 pm I discovered this on the charging leads to my battery terminals…… I guess the secret of DVM’s is that they cause you to look at wiring you take for granted and replace it! That was a good find…Last Post by:
posted: 6 years ago
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VDO Cummins "B" Instrument Wiring?
This topic has 9 replies, has 4 voices, and was last updated by
6 years ago May 31, 2017 at 12:21 pm These panels [370HP Diamond CPL 2208], have a loose circuit board associated with each engine panel at each control station. An alarm buzzer is part of each board. The ‘workings’ of this board tion. The ‘workings’ of this board are a mystery to me as I can’t find documentation. According to the first attachment the volt meter has purple [ignition] on one side and purple/black thru the low volt LED thence to a two w…
9 RepliesOctober 29, 2017 at 12:36 pm This may also add to the understanding of the factory system…………..The PCB boat IS NOT needed for all the instrument to work properly. In fact, on a properly working system, the PCB can be removed from the panel and all of the instrument will operate as they should.. The PCB BOARD is there for one reason only–To have an “vital sign alarm system” for the engine.. It basically reads the return signal from t…Last Post by:
posted: 6 years ago
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SMX Digital Voltage Monitors
This topic has 7 replies, has 4 voices, and was last updated by
6 years ago October 11, 2017 at 6:04 pm I did a DC refit this past spring which included new battery trays, 3 banks of wet batteries (house, start, genset), home run SMX DVM’s from Seaboard Marine to each battery bank an ACR between the start and house with custom panel at the helm to monitor, new On/OFF battery switches for the House & Genset banks, an On/Off /Combine switch for the Start, added a ProMariner 12-60P 60 amp charger dedicated to the house with a remote display…
7 RepliesOctober 14, 2017 at 4:49 am I knew how “fond” of that gauge you were and figured it was a goner by now!Last Post by:
posted: 6 years ago
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WIF alarm
This topic has 6 replies, has 4 voices, and was last updated by
6 years ago May 23, 2017 at 3:46 am Hi All, My new to me QSC engines do not have a WIF sensor installed, do I buy the blanking cap or the sensor. Is the sensor worthwhile? Thanks Luke
6 RepliesSeptember 22, 2017 at 11:15 am Where did you get the terminating resistors from? Can you send us a picture of the harnessing / wiring?Last Post by:
posted: 6 years ago
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Faria Synchronizer
This topic has 4 replies, has 4 voices, and was last updated by
6 years ago July 10, 2017 at 12:00 pm I’ve installed Faria Synchronizers (Catalog #34601, Factory #SY9671) on my Cummins 6BTA-3M powered boat. So far, the synchronizers aren’t working as the needle/indicator jumps and I’ve tried to adjust the synchronizers per the instructions, no help/progress. Are the engines equipped with a magnetic or alternator tach. signal source…? Any idea’s..? Thank you..
4 RepliesAugust 20, 2017 at 4:55 am Thank you very much Tony. You are the Pope of Cummins. ???Last Post by:
posted: 6 years ago
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Searay 40 temporary loss of guage data, syncronizer affected
This topic has 10 replies, has 4 voices, and was last updated by
6 years ago June 29, 2017 at 4:39 pm Tony and Corey or others, Thanks again for the help last year advising me to install the Cummins adapter harness which eliminated those ghost error codes. By the way, Boatdiesel would not post my thank you to you guys several months ago. Here is a new problem I hope you or someone else on the forum can help with. First my boat: 2006 Searay 40 dancer. Twin cummins qsb 380 5.9. Ser.46524871 and 46525394. Vessel view software ver.4.0.0.20. Yesterd…
10 RepliesJuly 15, 2017 at 6:56 am The SmartCraft gremlin never sleeps but you can keep him at bay with a clean and dry engine room, good tight & greased harness connections, and a little good luck on your side…Last Post by:
posted: 6 years ago
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Installing SMX analog for 6BTA
This topic has 6 replies, has 3 voices, and was last updated by
6 years ago April 29, 2017 at 6:52 pm Just completed the install of my SMX analog for Cummins. This was not a plug and play as it is on a 2006 Meridian and I had to make up a harness. Everything except the oil pressure works fine but the oil pressure is pegged at 150 PSI. The oil pressure sender is a single wire sender and I don’t see any additional wires on the engines near the sender Previous gauge was Faria I verified that the ground is good …
6 RepliesJune 16, 2017 at 1:55 pm Wayne, the version that you see on the product page is the older software version that “looks” different and doesn’t have a lot of the new features incorporated…Last Post by:
posted: 6 years ago
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Chasing down jumpy gauges – protecting connections.
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