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- Cummins Marine Forum Topics
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engine/shift port exhaust temperature high alarm
This topic has 2 replies, has 3 voices, and was last updated by
2 years ago
July 1, 2021 at 6:09 am I have twin 2013 QSB 6.7 480 HP with 1,100 hrs. On our last offshore trip this alarm went off. Engine temperature was 174 on both engines. Running 2850 RPM. Only thing I can tell you is that it appears the exhaust “smoke” on the port is more than starboard. Thanks in advance for your help.
2 RepliesJuly 12, 2021 at 6:52 pm Sheesh , I suspect that smoke is steam from lowered raw water volume. I have posted my tome below. Read through and ask if you have questions.Last Post by:
posted: 2 years ago
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Alternator
This topic has 6 replies, has 4 voices, and was last updated by
2 years ago June 23, 2021 at 3:23 pm My stbd side alternator does not seem to be charging. I have a balmar alternator with a c-charger 12 volt external regulator .The regulator is for both alternators so instead of 3 warning lights on front it has six unlike the manual picture. The lights are status ,error ,and parallel.Before I start pulling things apart I was wondering if anyone was familiar with this setup. Itās from 2003 so Charles no longer provides tech support.Iām thinking a…
6 RepliesJuly 1, 2021 at 1:28 pm Thanks for the input Denny.After doing my research and realizing the benefits of an externally regulated alternator I decided to stick with it and purchased a balmar to replace my old one.They are expensive but I hope it works out.Looked like the old one was dropped at some point because when I took it out the positive post was bent and the case was a little cracked around it .Last Post by:
posted: 2 years ago
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Kohler 8OEZ water in the oil
This topic has 9 replies, has 3 voices, and was last updated by
2 years ago June 28, 2021 at 11:39 am While out this weekend in Catalina I started the Generator and it ran well for about 10 minutes. It stopped and when I attempted to re-start in ran for 10-15 seconds and stopped. I checked oil level and found a milky grey fluid. The antifreeze and water levels were all good. When I returned home I drained all of the oil out and refilled with fresh and again after a short start of the generator it was a milky grey again. This appears to be salt w…
9 RepliesJuly 1, 2021 at 4:39 am Are you, changing the filter with each flush? Running the engine? Have you gotten it to full operating temp yet? (The oil takes longer to get to temp than the coolant does.). In your pics it looks like you have good access to pull the rocker cover. I would do that to check for condensed moisture in the overhead.Last Post by:
posted: 2 years ago
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Fuel block
This topic has 1 reply, has 2 voices, and was last updated by
2 years ago June 21, 2021 at 2:50 pm Not sure of the internals on this fuel block on my fuel cooler which I removed but I used it to change the angle on my return fuel line after I removed the fuel cooler because it interfered with the the salt water pump.Bill
1 ReplyJune 21, 2021 at 6:52 pm Cummins Marine Three-Way Fuel & Oil Combo Block Manifold Fuel Flow Diagrams for the Popular 6BTA 5.9 330/370 DiamondsLast Post by:
posted: 2 years ago
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SMX Seawater Pump/New Thermostat 6BTA/Fuel Banjo Fittin
This topic has 2 replies, has 3 voices, and was last updated by
2 years ago
June 14, 2021 at 7:13 am Seaboard gets a gold star for both the SMX Seawater pump and the SMX highflow 160 thermostat. Was a chore getting the old pump off and the new one in, but I got a chance to run the boat some this past weekend with the new pump and thermostat. She never got above 180 degrees. Before these installs, the boat was running at 195 degrees, which obviously didn’t give me much room for error. FYI – I don’t have much room around the…
2 RepliesJune 15, 2021 at 6:47 am On my 6bta 270 hpI requested from Seaboard a 13/16 flat faced 90. I did loosen the banjo fitting during the 90 degree fitting installation, then returned it to its original position after the install.Last Post by:
posted: 2 years ago
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Exhaust pipe min diameter for 420 HP
This topic has 7 replies, has 2 voices, and was last updated by
2 years ago June 10, 2021 at 2:27 pm Had new exhaust riser built. Sent them old one. New one came back with 3 inch pipe from flange to bolt on turbo. Old one was 3 1/2 inches, they want me to do a back pressure test to see if itās ok as is. I looked at a chart that says 3 inch too small for 420 hp. I want a new part. What do you guys think?
7 RepliesJune 11, 2021 at 10:32 am Spoke with the owner today. He said they will fix it. So Iām gonna hope for the best and see what happens next. Hard to understand how this got missed but it did.Last Post by:
posted: 2 years ago
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Hydraulic pump for simplex salmon gurdies
This topic has 7 replies, has 3 voices, and was last updated by
2 years ago May 29, 2021 at 7:59 pm Iām hoping I can get some help. I have a commercial crab puller on my boat and Iām being told the hydraulic pump is too large to run my simplex salmon gurdies. I donāt plan to crab on the boat, but Iād like to run the gurdies Looking for help on either reducing the flow on my current pump or getting a smaller one. Any input would be appreciated. I have a Cummins 6bta
7 RepliesJune 5, 2021 at 8:24 am Looking closer, it looks more like a V30 pump…Yes, BIG but that does matter. You just need to install a 1″ flow control hooked up to the output of you pump You may also need a 3-way diverter too.. In the Salmon mode you are just bypassing 80% of the pump output back to the tank.. Super simple–1″ high pressure hose fitting from the pump to the flow control You’ll spend about $400 on the large flow control ( 3+ X …Last Post by:
posted: 2 years ago
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Fuel Solenoid not holding open
This topic has 5 replies, has 3 voices, and was last updated by
2 years ago
May 24, 2021 at 6:33 am After doing some troubleshooting this weekend I found that if I zip tie the fuel shutoff solenoid open engine stays running. Without the solenoid being zip tied the motor will start I can see the solenoid open but as soon as I release the start button solenoid closes and engine stalls. I have tested the voltage at the 3 wire connector and using the ground (black) and the white when the start button is pressed I am getting 9-10 volts on the whit…
5 RepliesMay 27, 2021 at 5:49 pm Nice job. Following wiring oftentimes pays off. And now youāre a little better-versed in the workings of a cummins!Last Post by:
posted: 2 years ago
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31 Sportfisher with Cummins 6BT 210HP
This topic has 4 replies, has 3 voices, and was last updated by
2 years ago
May 18, 2021 at 8:26 am Hello All- I’m looking at a 31 Sportfisher (about 11,000 LB dry weight) boat that is powered with twin Cummins 6BT 210 HP (I believe they are original to the boat 1987). My question is at 420 HP would this boat be underpowered or are these engines adequate for this size boat? Thanks, Jonathan
4 RepliesMay 18, 2021 at 5:17 pm Thanks for the replies. I just got word the that the boat has sold, so it save me a plane ride to Southern California. The hunt continues. JonathanLast Post by:
posted: 2 years ago
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Valve lash
This topic has 4 replies, has 3 voices, and was last updated by
2 years ago May 11, 2021 at 2:55 pm So my owners manual says valve lash should be done at 1000hrs . I now have 1200 so Iām thinking it should be done.At 300 and 500 hours the heads were done so Iām thinking this was done at that time so should I use that as a benchmark or do it now.Engine is running great so I hate to mess with things if itās not necessary. Already got the valve cover gaskets but is there anything else I need for the job. I was going to hire a mechanic to do it si…
4 RepliesMay 17, 2021 at 8:33 am Tony, As always, thank you for the clarification.Last Post by:
posted: 2 years ago
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6BTA Thermostat Replacement Procedures
This topic has 9 replies, has 4 voices, and was last updated by
2 years ago May 10, 2021 at 1:31 pm Probably a stupid question, but I’m learning my 6BTA as I continue to work on it. I plan on changing out the thermostat for a high flow 160 degree replacement. Boat tends to run at 195 degrees, so going to a lower thermostat hopefully will give me some more margin on the temperature. I just pulled and had serviced the heat exchanger and the aftercooler. All looked good. Also eliminated the fuel cooler. When I removed the heat exchang…
9 RepliesMay 12, 2021 at 2:50 pm I just ordered the parts off of Amazon. Got a brass mini ball valve with male on one end, female on the other and ordered a 1/4″ Hose ID to 1/8″ Male NPT Straight Brass Fuel Fitting fitting to go with it. Set up was $16 and got it overnight with free Amazon Prime shipping. I plan on taking the plug in the hole now and plugging the ball valve end. When I drain it, I’ll just put the fitting back on it and slip a hose over it.Last Post by:
posted: 2 years ago
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Wolverines
This topic has 4 replies, has 4 voices, and was last updated by
2 years ago April 1, 2021 at 1:56 pm Just installed 2 wolverines to my oil pans.Hoping they help with white smoke but doubt it as It doesnāt seem to stop until I get to power.Mainly I think the easy start and keeping my bilge dry will be the main benefits.We will see.Just wondering how they should be used. Thinking Iāll leave them on until start then switch off the breaker.When I leave the boat Iāll put them back on.Just wondering how everyone uses them especially through the summe…
4 RepliesMay 11, 2021 at 4:22 pm WW, We have the same engines. I just ordered Wolverines and the pyro/gauges. I will be installing them soon. Will report our experiences soon.Last Post by:
posted: 2 years ago
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Sea Ray Strut – Long Shot Help Requested
This topic has 1 reply, has 2 voices, and was last updated by
2 years ago
May 11, 2021 at 5:18 am To all – My East Coast (MD) propeller shop is telling me that my Strut is too bent to repair and the pitting is of concern as well. See picture below. Looking for a replacement strut if anyone has a resource. New is 2 months more on the hard. May have to go down that road but was taking a shot if anyone knows of or has a resource for a replacement. Thanks to all in advance… – Algonak Marine (OEM) Cast #25550 – Sea Ray P…
1 ReplyMay 11, 2021 at 11:59 am No affiliation but this guy posted on the Albemarle FB page. https://www.facebook.com/hashtag/strutsruddersbearings?refid=18&_ft_=qid.6961107879594237533%3Amf_story_key.1143048599544144%3Atop_level_post_id.1143048599544144%3Atl_objid.1143048599544144%3Acontent_owner_id_new.1456052855%3Apage_id.181782022337478%3Asrc.22%3Astory_location.6%3Astory_attachment_style.photo%3Afilter.GroupStoriesByActivityEntQuery%3Atds_flgs.3%3Aott.AX-EV-xdbPB4IC…Last Post by:
posted: 2 years ago
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Barrymounts removed
This topic has 2 replies, has 2 voices, and was last updated by
2 years ago May 8, 2021 at 5:43 am I have completed replacement of all my engine mounts with SMX purple mounts. I noticed a single digit number stamped in the underside of each of the Barrymounts I removed, not all the same but some duplicates. Can anyone say what these numbers mean?
2 RepliesMay 8, 2021 at 7:06 pm Photos of old Barry Mounts showing stamped numbers in question.Last Post by:
posted: 2 years ago
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tensioner replacement 6MBT5.9
This topic has 8 replies, has 2 voices, and was last updated by
3 years ago
May 1, 2021 at 4:46 pm I need to replace the tensioner on my ’86 6MBT5.9 210 on a 1987 Alura 30. The original has been discontinued. Picked up a new tensioner, Dayco #P5333477, from Seaboard Marine. Looks like it might work, but the notch on the new tensioner doesn’t fit in the current bracket/plate. Is it possible to get/order a bracket that would fit the new tensioner? Has anyone else had difficulty replacing a tensioner on a very old (but well running, …
8 RepliesMay 5, 2021 at 7:50 pm Jack and Brendan teamed up to help find an answer. They found a combination of a replacement tensioner, bracket and idler pulley that would work on my ’86 6MBT 210. Awesome! Can’t wait to install it. So appreciate the advice from the forum, Tony and the staff at Seaboard Marine. Makes such a big difference. Thank you!!!! Below is a picture of the tensioner, plate and idler pulley assembly.Last Post by:
posted: 3 years ago
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1st time seawater impeller change
This topic has 7 replies, has 7 voices, and was last updated by
3 years ago April 6, 2017 at 10:49 am Ā Newbie on the site with a still new to us boat. Ā This weekend I plan to change the seawater impeller on our 6BTA5.9 M3. Ā I understand the basic concepts but would appreciate any suggestions. I noticed that the bore of the new impeller is threaded on one end. Ā “Assuming” that the installed impeller is the same will a bolt to match those threads work as a puller? Thanks in advance for all replies.
7 RepliesMay 5, 2021 at 7:08 pm Couple tips to add: If the keyway is at 12 o’clock when you pull the impeller, the key should stay in the pump housing and not fall out. You can turn the ignition key briefly and spin the pump until you get it facing the right direction. For pulling, snap-on part CJ83-3 (around $30) fits the threads and is an excellent puller. I used a hacksaw to cut the unthreaded 1/4″ section off right where the threads start so it can easily threa…Last Post by:
posted: 3 years ago
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QSC 8.3 Turbo soot, aftercooler cap grease leak
This topic has 4 replies, has 3 voices, and was last updated by
3 years ago
April 29, 2021 at 7:18 am I have a new-to-me 2019 Back Cove 37 with a QSC 8.3 600 engine. 157 hours. Recently picked it up in Charlestown, SC and drove it 981 miles up the ICW to Long Island. Pleased to say the fuel burn was a spot-on match to the Cummins fuel demand chart. Checking things out post-trip, I noticed 2 things I’d like to understand: 1) There is some sooty-type material on the turbo near the wastegate. There is what looks like a heat shield over…
4 RepliesMay 3, 2021 at 3:29 pm I wouldn’t wait to do the AC, though very unlikely there’s any issue but it’s a relatively easy item to do given all that room and a small price to pay to get the peace of mind. There’s no grease or other lubricants in that area, other than what was used to assemble the AC when new. Maybe, possibly, being pushed out due to some beginning corrosion taking place, but being so new, unlikely in a terrible state at all. Get it…Last Post by:
posted: 3 years ago
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Does high fuel consumption always indicate overprop condition?
This topic has 2 replies, has 3 voices, and was last updated by
April 19, 2021 at 10:50 am I have a 2008 36′ flybridge boat with twin QSB 5.9 440s. My engines will only hit 3180 RPMs at WOT and after a few seconds the temperature starts to increase. My fuel burn is at least 20% above the curve at each 200 RPM increment. I have taken good care of the boat with regular maintenance and there are no running gear or other problems. When the boat was new it would run 3460 RPM at WOT. A couple years ago I installed my spare set of prop…
2 RepliesApril 29, 2021 at 10:13 am I agree with Steve Lewis that you are most likely over propped as it is now. THe temp rise would also indicate to me that it is time for you to start looking into a cooling system service. There are many areas to go after so rather than a lot of writing I offer my tome below. Read through it. If there are questions then repost.Last Post by:
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Best Locations to get Water Flow for Shaft Packings
This topic has 3 replies, has 2 voices, and was last updated by
3 years ago
December 16, 2020 at 11:46 am After reviewing the article posted. I was wondering how the outlet in the cap of the heat exchange is attached to the actual cap is it threaded in or some sort of sealant? Looks almost like jb welded.
3 RepliesApril 27, 2021 at 6:13 am I have my fitting installed on the cap of the heat exchanger and noticed that it looks like its going to be int he way of the riser. 1) Can I have it fed from the front of the heat exchanger? 2) If the answer to #1 is no where is another location that I can greab water supply from? Can I add a fitting to the smx pump to feed my dripless?Last Post by:
posted: 3 years ago
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A few Contentious Question re electrical
This topic has 3 replies, has 3 voices, and was last updated by
3 years ago April 12, 2021 at 5:52 am HI All I have a few questions and wanting general opinion just to gauge which way I will go š Background. After having all 6 dual purpose AGM’s die within 2 weeks of each other (7 years old so can be forgiven) I am going LIFEpo4 – 326ah pack – all systems are being replaced regarding charging and wiring etc and i’m throwing in a large inverter also (victron multiplus) my questions revolve around what should be attached w…
3 RepliesApril 25, 2021 at 4:51 am Well i’m trying to reply but it wont let me.. try again – Looks like it wont let me quote people.. oh well another bug.. OK Rob I had a big reply typed out and the system ‘Block’ wiped it out. So i’ll try again.. I probably didnt explain my self well enough – My 6 AGM house bank died, so I am replacing the house bank with Lithium (1x 326ah battery – equivalent to more than the 6agms capacity wise) Cran…Last Post by:
posted: 3 years ago
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engine/shift port exhaust temperature high alarm
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