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- Cummins Marine Forum Topics
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Volvo TAMD 74P obsolescence, maintainability
This topic has 1 reply, has 2 voices, and was last updated by
5 months ago November 21, 2023 at 6:35 am Iām looking to downsize from my 58ā Viking with 1200 hp manās. Looking at a 42 post with 480hp TAMDs and wondering how bad the Volvos will be to maintain.Ā <br /><br /> I previously had a 38 Bert with Cummins 480ceās and loved how easy it was to get parts and advice here on this forum. Stepped up to the 58ā viking which is an awesome boat but Iāve needed to hire out a lot of the work and itās really just too much boat for us right now…
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in: General Discussion
1 ReplyNovember 22, 2023 at 8:10 pm If long term parts availability and reasonable service cost are part of what you are seeking, look for a vessel with Cummins engines built from the early 90’s on.. The 5.9 B or 8.3L C’s are the engines of choice… In the best of times, getting anything for a Volvo marine engine has always been a challenge,Ā at least here in S. Calif.Last Post by:
posted: 5 months ago
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Engine Data on 480CE J1939 bus?
This topic has 7 replies, has 6 voices, and was last updated by
10 months ago
November 15, 2017 at 10:06 am This came up briefly in another discussion but I thought it made sense to make the topic it’s own thread. Does anyone know if, on the 480CE, the engine data (such fuel burn, loading, RPM, etc) is sent over J1939 bus as well as the J1708 bus? The “C8.3 Marine Electronic Control System Troubleshooting and Repair Manual” shows a pin-out for the 9-pin diagnostic connector that shows both J1708 and J1939 high and low conductors. B…
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in: Cummins Marine Engines
7 RepliesJuly 6, 2023 at 8:26 am I am running a J1939 to NEMA2000 Gateway with dual 480CE’s.Ā Normally the engines are numbered on the J1939 bus as engine 0 and engine 1.Ā On my 2004 Riviera they are engine 0 and engine 239.Ā The converter changes this to 0 & 1 for the N2K bus.Ā I receive everything that is on theĀ J1708 bus.Last Post by:
posted: 10 months ago
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Neither turbo spooling up Man D28 v12 mechanical
This topic has 5 replies, has 3 voices, and was last updated by
1 year ago April 4, 2023 at 5:41 pm Looking for troubleshooting suggestions. Hereās where we are: I recently completed cooling system service and replaced fuel cooler after it failed, leaking sea water into tank.Ā Got water out of tank, changed primary and on engine filters, all had some water in them. Boat ran fine after repairs – temps looked good, etc. After about an hour of running, tried a WOT test. Both engines made rated RPM+ (~2350) throttled back. My mechanic though…
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in: All Other Marine Diesels
5 RepliesApril 6, 2023 at 5:44 am I thought the same thing I just donāt see what it could be. The airseps are also only 2 years old and I donāt see any sign of deterioration or anything. Only thing I could think of would beā¦and this would be awfulā¦maybe the techs when disassembling the engine for cooling system flush used the filter as a bucket to put nuts and bolts inā¦then maybe they forgot a washer or something in there when it went back on. I guess if so weāll find it when we…Last Post by:
posted: 1 year ago
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ZF BW165 Leaking…and slipping?
This topic has 7 replies, has 2 voices, and was last updated by
1 year ago September 30, 2022 at 8:25 am I’ve got ZFBW165 mated to 1200 hp man’s.Ā The port oil cooler has been leaking. I plan to remove it and hopefully its just a matter of replacing the o-rings where it mounts to the gear box.Ā However, I now have a new problem that may or may not be indicative of the cooler failing all together.Ā Recently, I had my port trim tab fail while underway (boat is a 58 viking). I’ve since had the trim tab removed and am running without …
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in: Marine Transmissions
7 RepliesOctober 12, 2022 at 12:04 pm I was able to source a used OEM cooler. Appreciate the offer to help, may take you up on it when the other one inevitably goes bad šLast Post by:
posted: 1 year ago
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480 CE Boost and Exhaust guages
This topic has 7 replies, has 4 voices, and was last updated by
1 year ago
September 27, 2019 at 4:55 am I have a 2005 Searay 390 MY with a pair of 480 CEs, 370 hrs. The Smartcraft display is in good condition however it dosent display boost or exhaust temp readings. I seem to recall reading that there are sensors for these on board the engines but readings can not be displayed on the Smartcrap. I think I recall reading that they can be read with the right diagnostic software. My question is this… can I install guages that will display these …
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in: Cummins Marine Engines
7 RepliesJuly 27, 2022 at 7:01 am Matt I never got any gateway. That is beyond my ability. I only get engine data on my failing Smartcrap System View. For Boost and X temp I bought Seaboards Turbocator package. Easy to install and independent from other systems. I wish I could display other data on my Ray displays. I understand I could do new harnesses and buy Seabord data displays but thatās a tough job and the displays are too small. 480 CEs Ā are fine, but language challenged.…Last Post by:
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Pencil Zinc Install
This topic has 19 replies, has 12 voices, and was last updated by
2 years ago
May 8, 2017 at 9:21 am In an effort to not ignore the basics, I’m posting these tips on replacing zincs. The aftercooler and heat exchanger zinc cap threads are 1/2″npt and the gear cooler zincs caps are 3/8″npt.Ā Having taps of each size in your “zinc kit” is a good idea so you can chase those threads clean.Ā Thread the new pencils onto your caps and snug them up you do not want them coming lose and banging up the tube ends of your coole…
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in: Cummins Marine Engines
19 RepliesApril 27, 2022 at 5:44 pm I will chime in also. I Rectorseal #5Ā the zinc threads themselves.Ā Ā Then I use pliers or a vise and a wrench to tighten the zinc into the cap.Ā Ā Snug firmly onlyĀ asĀ the smaller ones can be weak and break if overtightened. Seals the threads so they are protected fromĀ the seawaterĀ Ā so they do not degrade, at least not untill the rest of the zinc is gone.Ā Ā That way they do not fall out of the cap. IĀ then rectorseal the cap threadsĀ for th…Last Post by:
posted: 2 years ago
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Info on cat C12.9? Good motor?
This topic has 1 reply, has 2 voices, and was last updated by
2 years ago August 17, 2021 at 9:57 am Looking for info folks have on cat c12.9’s. Doesn’t seem to be a ton of info on the internet, at least from the searching I’ve done. Even cat’s website seems to have very little info. Sounds like it may be a re-branded Italian made engine? Looks like its a completely different engine than the c12, and has only been out for a few years. About 500 lbs lighter and 6″ shorter than the c18, but twin turbos and displac…
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in: All Other Marine Diesels
1 ReplyAugust 18, 2021 at 3:33 pm Yes it is a rebadged FPT. one side of the line IVECO FPT They are stopping the 12L block now as well for some reason. still doing the 9.3 and the 18Last Post by:
posted: 2 years ago
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Genset fuel leak
This topic has 1 reply, has 1 voices, and was last updated by
3 years ago December 19, 2020 at 6:33 am My Onan genset has developed a fuel leak – pic attached. Any suggestions of whether I should retighten those fuel lines, and how tight I can go? Is there some sort of seal or gasket I can replace if I take them off.
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in: Cummins Marine Engines
1 ReplyDecember 19, 2020 at 12:38 pm After a little searching, seems like its common for the o rings to go bad on the delivery valves, so I suspect thatās the culprit here.Last Post by:
posted: 3 years ago
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6cta oil leak – options?
This topic has 10 replies, has 6 voices, and was last updated by
3 years ago October 13, 2020 at 4:01 am My port engine has slowly leaked oil as long as I’ve had it. Generally had to add a quart a couple of times a season (every 50 hours or so). Just did ~400 nm in 3 days and it suddenly has gotten dramatically worse – now need to add a quart every ~8 hours and the leak is pretty visible. I may have more than one leak…but this seems to be the main/worst one. How sensitive are the oil pan bolts to over tightening? Can I grab a la…
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in: Cummins Marine Engines
10 RepliesNovember 25, 2020 at 3:07 pm Thanks for the follow-up and nicely done putting the admiral to work. My wife was key when it was time to reinstall the genset exhaust manifold last spring – tight quarters, needed the second set of hands and I knew she was COVID free!Last Post by:
posted: 3 years ago
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Smart Craft Accuracy
This topic has 6 replies, has 5 voices, and was last updated by
3 years ago
September 9, 2020 at 8:23 am Tony: After taking an inch out of the prop, cleaning the bottom/ re-painting and verifying the analog tachs are within a couple of RPM compared with the digital tach the smart craft is stilling showing higher fuel flow than I expected. Props= 24 X 27 2000 RPM=25 Total GPH = 24X26 ” ” 22.4 The 450 fuel curve indicates I should be 20.8 WOT was 2650 with no problems. Question, how accurate is the 15 year…
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in: Cummins Marine Engines
6 RepliesNovember 23, 2020 at 12:26 pm Below are the results of 2 reductions in pitch for the 480s in my Sea Ray 390MY. After rebuilding the starboard engine, exhaust valve seat failure and swapping the head on the port one, I hope I’m done. Interpreting the data, it appears 2200 RPM with some time at 2400 would be the place to be and avoid prolonged cruise at 2000. Any feedback would be appreciated. …Last Post by:
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Old onan Genset Alternator failure – what are my options?
This topic has 3 replies, has 2 voices, and was last updated by
3 years ago September 26, 2020 at 8:11 am The alternator on my 1989 vintage 8kw Onan genset failed, and broke the alternator bracket. Or possibly vice versa. When I turn the alternator, it doesnāt turn smoothly – itās ālumpyā feeling, which I assume means bad bearings. I believe the underlying engine is a kubota(?) and I may be able to find a replacement alternator, but I donāt know how Iāll ever find a replacement bracket. The belt goes around the alternator, flywheel, and wat…
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in: Cummins Marine Engines
3 RepliesSeptember 26, 2020 at 1:40 pm I just bought 2 of these on Amazon ( 2 weeks ago) .. Probably the same unit.. Super cheap.. JOHN DEERE NEW PERMANENT MAGNET ALTERNATOR COMPATIBLE WITH John Deere Mower 2500 2500A 2500B 2653A 10939 TonyLast Post by:
posted: 3 years ago
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480CE Aftercooler DIY
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This topic has 25 replies, has 6 voices, and was last updated by
3 years ago September 11, 2020 at 10:59 am I had new aftercoolers installed about 2.5 years ago, so its time for them to come off for their first service. They were ordered from here, so they should have been greased up properly, etc., and not to bad to service (fingers crossed), so I’m planning on doing as much as possible myself. In terms of soaking the cores – is it worth taking them to a radiator shop to have them soaked and pressure tested? Or can I just soak them in sim…
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in: Cummins Marine Engines
September 20, 2020 at 4:57 am I only saw the spray cans – so I just alternated between spraying them down, rinsing them off, drying them out, and repeating. It was very time consuming. Soaking may have been a better bet. The guy who runs one of the diesel shops here at my marina told me next time to just drop the cores off and heād put them in his cleaning tank for me. Iāll probably take him up on that next time. I donāt feel like I got them as clean as I wanted to.
25 Replies
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posted: 3 years ago
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How Do Diesel ECM's Typically Calculate Fuel Burn and Engine Load
This topic has 9 replies, has 6 voices, and was last updated by
3 years ago
October 16, 2018 at 9:52 am Wondering if anyone knows, for marine diesel engines with ECMs, what the typical approach is for calculating fuel burn and engine load as reported by the ECM? I had assumed the fuel flow was monitored directly and that was reported by the ECM, and compared to the RPM and perhaps other factors to calculate engine load. Over the weekend, a cummins tech told me that typical “recreational” class marine diesels do NOT measure fuel consump…
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in: General Discussion
9 RepliesJuly 21, 2020 at 3:41 pm Nicholas Cummings wrote: Thanks. Your statement about accuracy gets to the crux of my issue ā which is the ongoing mystery iāve been trying to figure out as to why one of my motors appears to be burning ~15% more fuel (with correspondingly higher engine loading) than the other. Iāve gone through everything I can possibly think of ā ruling out props, running gear, intake leak/inadequate boost, EGT differences, etc.. Nicholas – I am curious…Last Post by:
posted: 3 years ago
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checking screen on ZF280-1
This topic has 8 replies, has 4 voices, and was last updated by
4 years ago March 3, 2020 at 8:29 am Can i pull the screen on my ZF280-1 to check the screen with oil in the transmissions, or will it drain out? Also, where is the magnet i’ve seen referenced? Is it visible through the hole once the screen has been removed? My port engine gear oil is showing up fairly grey compared to my starboard gear oil, which still looks brand new after about 200 hours. Trying to figure out what’s going on. Is there anything specifically i sho…
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in: Marine Transmissions
8 RepliesMay 5, 2020 at 9:29 am Tony, Measurements were taken on the dashboard and also on the coupling itself with an external meter. Now the pressure is back as it should be 23/24 Bar. I am still worried about the black oil. The oil is always black from the revision. Overhaul because the clutch slipped. After the revision, the oil is always black.Last Post by:
posted: 4 years ago
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Fuel flow measurment / 480CE
This topic has 12 replies, has 7 voices, and was last updated by
4 years ago
February 28, 2020 at 12:34 pm I see and understand all of the guidance about propping the 480CE to the 450 curve, makes sense. The specific question I have goes to the fuel flow measurment technique used to see where you are relative to the 450 curve. Is it adequate to use the fuel flowrate generated by the 480CE’s ECM’s? (which are routinely displayed to the helm as the actual fuel flow rate) I fully understand that the displayed fuel flow is not an actually-mea…
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in: Cummins Marine Engines
12 RepliesApril 30, 2020 at 6:39 pm William Walter wrote: David I have a 2003 tiara also. One thing I learned about re pitching props is you have to tend to your running gear and bottom first to have fair platform to start from.Once you have that squared away and you have good numbers you can tend to props. I took about 1 inch off my props which are the same as yours.If you look in prior threads you can see my numbers.Bill Very true. Sometimes just removing some cup also is enoug…Last Post by:
posted: 4 years ago
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Onan genset – no water flow. Tried everything I can think of.
This topic has 2 replies, has 3 voices, and was last updated by
4 years ago March 28, 2020 at 5:23 pm I’m not getting any raw water flow through my late 80s vintage 8.5kw genset and am out of troubleshooting ideas. Hoping for some suggestions. The problem started when the boat yard put the handle on my intake sea cock 90 degrees off after servicing the through hulls, resulting in me starting and running the genset with the seacock closed. It ran for about 10 minutes then the fault breaker tripped. Once I figured out what was going on, I …
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in: Cummins Marine Engines
2 RepliesMarch 29, 2020 at 7:53 am 2 things for now… The internals on the pump housing are worn to where you are not getting a good suction– Cam, inner wear plate, back plate, and the housing ID. Pull the impeller and coat the inside of the housing, back late and the impeller with COMMON wheel bearing or lithium grease —TRUST ME–Be copious with the grease.. If it primes, you need a new pump and it’s out of tolerance (30 years of Marine age) , or …Last Post by:
posted: 4 years ago
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480ce Check Engine Light – how to view fault codes
This topic has 6 replies, has 3 voices, and was last updated by
4 years ago December 16, 2019 at 9:49 am The CEL on one of my 480ceās came on immediately when I started it after changing the oil. Seem to remember there is a way to get it to āflashā the fault code but canāt find instructions. Can anyone point me to instructions on how to get it to flash the fault codes and how to convert that to a code that I can look up? Seem to remember it was a key sequence. Any common cause for the light to come on after an oil change?
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in: Cummins Marine Engines
6 RepliesDecember 19, 2019 at 6:38 pm Focus on the display…Last Post by:
posted: 4 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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Impeller rotation direction?
This topic has 1 reply, has 2 voices, and was last updated by
5 years ago March 25, 2019 at 5:11 pm Just replaced the impeller in my 480CEās Sherwood water pump. When Iāve replaced impellers before, Iāve always put them in so that the impeller blades ābendā in the same direction as the impeller I pulled out. Problem was, when I opened up my two pumps, both impellers had blades bent both directions (pic attached – for orientation, the raw water intake hose is the bottom of the pic). Can anyone tell me which way these are supposed to spin…
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in: Cummins Marine Engines
1 ReplyMarch 25, 2019 at 5:41 pm 100% normal..Pay no attention to the direction of the blades, they get out of whack when the engine shuts down. They will right themselves once she spins again.Last Post by:
posted: 5 years ago
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confused about oil for 480ce 6CTA
This topic has 4 replies, has 3 voices, and was last updated by
5 years ago November 4, 2018 at 2:13 pm I’m getting ready to do my first oil change and I’m confused about the engine oil specs. The manual calls for ces20071 or ces20076 oil, or CG-4 or CH-4. Valvoline blue is very difficult to find around me, but Shell Rotella T is on sale for $60 for a 5 gal bucket. Shell Rotella T lists compatibility with CH-4 and CG-4 but CES20081, not -71. Searching around I couldn’t find anything cummins put out saying CES20081 is backward co…
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in: Cummins Marine Engines
4 RepliesNovember 5, 2018 at 7:44 am Ah, I buy in one gallon containers so that’s what I was referencing…Last Post by:
posted: 5 years ago
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Volvo TAMD 74P obsolescence, maintainability
