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Code 559 low fuel pressure – accelerating
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This topic has 29 replies, has 8 voices, and was last updated by
8 months ago September 18, 2018 at 5:01 pm Hello, Ive been trying to solve the 559 low fuel pressure alarm for some time now with no results. Right now it only activates when power is put to plane and when WOT. Boat has a pair of 5.9 QSB 355 hp 650 hrs 2007 Here a list of things done with no sucess in order: 1)Replaced racor. (Issue improved but still present) 2)Replaced engine fuel filter and vacum gauge on racor) 3)Replaced pressure sensor on fuel rail. 4)Replaced fuel transfer pump …
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in: Cummins Marine Engines
August 26, 2023 at 1:11 pm Look for the ecm and find the lines. Dont have pictures, the code can be many other things. . Good luck.Ā
29 Replies
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posted: 8 months ago
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4bta low power and rpm
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This topic has 30 replies, has 10 voices, and was last updated by
10 months ago
August 27, 2021 at 3:45 am Hey everyone, Iām having an issue with one of my engines. The boat is an ā01 Carolina Classic with twin Cummins 4btaās, Cpl 2197. The boat starts and idles fine and will rev fine in the slip with no load. When I try to get on plane the port rpms hang up around 1700 while the stb continue to rise. The first time this happened I pulled back immediately because I wasnāt sure if this would damage something. I had a local diesel mechanic take a look …
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in: Cummins Marine Engines
July 5, 2023 at 11:14 am A local place in Severn, MD called Arundel Diesel and Performance.Ā 30 Replies
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Aftercooler test without removing
This topic has 3 replies, has 4 voices, and was last updated by
11 months ago
June 3, 2023 at 5:11 am I have a Cummings 6BTA engines on my Carver 410 and I removed the Aftercoolers myself and cleaned the cores and they were in pretty good condition. I did not realize I should have pressure tested them before I put them back on (my fault for not reading up on it more). The coils were in good shape and after brake cleaner, Simple Green and a washing with a hose and then air drying, I cleaned the housing which was in good shape and greased them wel…
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in: Cummins Marine Engines
3 RepliesJune 6, 2023 at 12:48 pm Before you reinstall the Aftercooler, get couple of bolts of the same diameter and thread. Cut off the heads. You now have a stud. Hand tighten them into one or two of the mount holes for the Aftercooler brackets. Slide the Aftercooler onto the studs and install a bolt in one of the holes not occupied by a stud. Now remove one stud and screw in a bolt and so forth. Makes the chore of installing the Aftercooler on the outboard side a lot easier. …Last Post by:
posted: 11 months ago
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6 BT Diamond 330 spraying water behind aftercooler down open hose into bilge
This topic has 3 replies, has 3 voices, and was last updated by
1 year ago May 8, 2023 at 1:28 pm A spray of water coming from behind the aftercooler and finding it’s way down this open hose into the bilge – I will try and attach a short video – any possible theories appreciated . thxĀ aftercooler condensation check valve ?? just researching a bit myself – someone has hacked it into a hose Ā and directed it into the bilge … any thoughts ? thank youĀ
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in: Cummins Marine Engines
3 RepliesMay 10, 2023 at 6:38 pm I recently had a leaking Aftercooler that was undiagnosed for a short while – maybe a month or so.Ā Apparently one of the threee bolts in the bottom cap stripped out and the lower bronze cap went askew and let salt waterĀ leak past the o-ring and let the salt deposit work it’s majic between the bronze and the aluminum housing.Ā It must have blownĀ one a last run because never noticed any performance hit.Ā Then the boat set for 6-8 we…Last Post by:
posted: 1 year ago
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DJ Pumps 1730C Pump – Issues
This topic has 1 reply, has 2 voices, and was last updated by
1 year ago April 2, 2023 at 3:24 am Hi Guys While I have the aftercooler and HX etc off the engine its far easier to pull the impeller (its actually the only way on the port engine being so crammed in cose to the fuel tanks) On pulling the impeller out a chrome ‘cup’ and spring came out.Ā Now I understand that the DJ pumps pump is similar to the SBmar pump however i have no doubt that it has some Tony tweaks to it.Ā Looking at the exploded diagram of the pump I found o…
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in: Cummins Marine Engines
1 ReplyMay 4, 2023 at 6:42 pm It’s been a month or so.. How is your DJ pump doing?Ā When you expect to see 1000 hours of use?Last Post by:
posted: 1 year ago
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Front mounted pump 6BTA?
This topic has 11 replies, has 5 voices, and was last updated by
1 year ago
April 2, 2023 at 5:20 am Hi Guys Has anyone produced a timing gear cover with PTO mount that can be used for mounting the pump on? My boat on the port engine is a pig.. very serious pig to change. To do easily the aftercooler and HX have to come off (HX so i can stand and bend over the engine) everything is done pretty much one handed and can take anything from 4-6 hours. SB engine is 15 minutes.. kinda says it all really! If the pump was front mounted it would still be…
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in: Cummins Marine Engines
11 RepliesApril 25, 2023 at 4:20 am <b><i>i guess this can be flipped from side to side,</i></b> They can, I set mine up on the outside of each engine. <b><i>I wonder if the gear could be pulled of the standardĀ pump and replaced with a toothed pulley</i></b> It would be difficult to mount and set up the sliding belt adjuster,Marks drawing is simple to follow and already proven,Ā the Jabsco pump used is bulletproof and way cheaper …Last Post by:
posted: 1 year ago
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Dark Grey smoke – Port engine
This topic has 4 replies, has 3 voices, and was last updated by
1 year ago March 19, 2023 at 7:19 pm So I suspect I know the cause but just prearming myself for what else can be wrong..Ā Off out at the weekend – 47ft flybridge running 2x 1993 6bta 330’s Boat is dirty underneath and is due out in a few months but i’ve not had time to dive it. A few km from out departure we noticed that the port motor sounded different (we have wet mufflers) and the exhaust temp was elevated a little (8degC) over the STBD engine. Engine temp was…
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in: General Discussion
4 RepliesMarch 20, 2023 at 5:56 pm Tony If I remember right we get to 2850rpm with clean bum and loaded per usual – so not overpropped terribly in ‘normal’ conditions. But we could probably do with an inch taking out.. This is a new issue not an existing one. This is not normal in the sense of end of season – wierd growth year – hull doesnt normaly get dirty but it is..Ā and more a question of what else could be wrong beside the turbo, given the engi…Last Post by:
posted: 1 year ago
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Oil Leak 6bta 330
This topic has 6 replies, has 5 voices, and was last updated by
1 year ago January 24, 2022 at 4:25 am Hi Guys This may be a bit vague, but I have an oil leak on my SB engine. It appears to be coming from the starboard side somewhere roughly in line with the starter.. .. however I cannot see where it is coming from, only where its dropping onto the hull Are there any typical oil leak places on these engines? (you know like some engines have typical failure points..) I’m just asking as it can give me a starting point of where to look.. there…
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in: Cummins Marine Engines
6 RepliesJanuary 22, 2023 at 12:18 pm Looking at J Dragon’s reply has me thinking.Ā I did a five year belt replacement on both my 6BTA 5.9’s a month or so back, and dropped one of the belt guard bolts and could never find it.Ā I replaced with a ‘similar’ (thread same/length close? don’t remember, shorter if anything) bolt that I got at ACE.Ā Aside from definitely (I think/hope) getting the longer top bolt correct (with the spacer), I’m not sure I …Last Post by:
posted: 1 year ago
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Sheared bolt inside C450 Turbo
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This topic has 22 replies, has 9 voices, and was last updated by
1 year ago January 30, 2017 at 8:54 pm Hi SB crew I have a Riviera 4000 offshore express on Gold Coast, Queensland which featuresĀ 2 x 1997 6CTA8.3 aka C450 Diamond Series with around 1000 hours on the tachourmeters. The other morning I found a bolt in the engine room and it is from the turbo where the exhaust bolts to the turbo. Please refer attached photos. Recent running wasĀ not hard and last couple of runs before this discovery we were only doing aĀ leisurely 10 knots or 1100rpm.Ā …
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in: Cummins Marine Engines
October 27, 2022 at 2:49 am Hi SB Crew After almost 8 years to the day we sold our beloved Riviera. In due diligence we pointed the new owner, Rodney to your awesome site, this forum and these specific topics. In those 8 years we never had the rocker covers off … not saying that is a good thing… but lucky for us we never had a failure. Also never got to install my new SMX sea water pumps. The best thing we did was to plumb fresh water input after the sea cocks.… 22 Replies
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posted: 1 year ago
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Custom Exhaust Fabrication Questions
This topic has 8 replies, has 4 voices, and was last updated by
1 year ago June 7, 2022 at 3:23 am As probably (not probably – definitely) the most knowledgeable bunch regarding exhaust design, I have some questions.Ā I am looking at moving from the crappy std cummins elbows which I know are no inherently safe, however mine were replaced 4 years ago (and due to costs kept std) I know they have limited life left in them, so am designing a new set of ‘risers’ to get fabricated locally (shipping and exchange rate make this kind…
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in: Cummins Marine Engines
8 RepliesJune 13, 2022 at 7:00 am Look up AHM fabrication. They did a set for me for a couple of Volvos. Def not worth the stuffing around for the cost.Last Post by:
posted: 1 year ago
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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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6BTA Starting battery
This topic has 12 replies, has 6 voices, and was last updated by
2 years ago
January 5, 2022 at 2:17 pm I currently have two group 27 lead-acid starting batteries per motor. I would like to reduce weight and save space and so am considering a single 12V 100AH Lithium Ion Battery (link below). https://www.lithiumion-batteries.com/products/12-volt-lithium-batteries/chargex-12v-100ah-lithium-battery.php After chatting with the engineers at Chargex they believe the above battery will have plenty of power to start the 6BTA motor and will work well with…
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in: General Discussion
12 RepliesFebruary 23, 2022 at 5:30 pm I now use a Maxwell 1800 cca capacitor to spin the starter motor on my qsb 6.7, even the Cummins tech who did the commissioning likes the setup. The 200amp alternator is connected to 400 amp hour lithium batteries. The Maxwell is about 14 lbs the lithium weight is less then half of what lead acid batteries with 4 times the useable capacity.Last Post by:
posted: 2 years ago
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Aftercooler pressure tester
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This topic has 24 replies, has 11 voices, and was last updated by
2 years ago November 9, 2019 at 12:39 pm So after cleaning the aftercooler core I wanted to pressure test it for leaks before assembling the aftercooler. I saw a picture of the way Seaboard tests them but I wanted something I could hook up quickly since I have 2 aftercoolers to test. I thought I would share my cheap and easy design . ABS 4″ pipe with a 5″x4″ reducer, end caps, with one end tapped with a female air fitting and valve so I can regulate the air pressure.…
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in: Cummins Marine Engines
February 21, 2022 at 12:16 pm I tested to 25 PSI with air, per a lot of recommendations on this site.Ā 24 Replies
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posted: 2 years ago
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6BTA AFTERCOOLER
This topic has 12 replies, has 5 voices, and was last updated by
2 years ago
February 14, 2022 at 4:37 pm Hello. I have a new to me 2002 Tiara Express 35 with 6bta 5.9 engines.Ā We recently installed a new RECON long block and working on the peripherals. Today the mechanicĀ sent me these pictures and told me that the aftercooler core is stuck to the housing and that it looks like previously someone tried to push it out and left it crooked.Ā Also said there was a lot of some type of silicone on the caps that might have been used to create a sealĀ and…
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in: Cummins Marine Engines
12 RepliesFebruary 17, 2022 at 3:00 pm Hope you have a great Birthday Weekend!Last Post by:
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Aftercooler Maintenance – Results
This topic has 2 replies, has 2 voices, and was last updated by
2 years ago August 31, 2021 at 6:27 am Hi All Thought some may find this interesting.. I have pulled my SB aftercooler from my 6bta 330.. I was actually removing the turbo as I noticed 3 of the 4 bolts holding the riser were sheared off (another post) While removing the turbo I knew the aftercooler was overdue.. so thought why not . I have a week or 2.. so off it came. Its been 3 years since I last pulled it.. and at the time the boat was new to me 20 odd years old and i dont think t…
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in: Cummins Marine Engines
2 RepliesSeptember 5, 2021 at 4:28 am and as an update.. redid everything. Pressure test failed. Dropped about 1psi per hour from 25psi on the water side, so pressurised the air side (larger volume) and sealed off the water side, and it equalised the pressure, so definite leak from the core. Tested the core by itself and its a teeny tiny leak (a few teeny bubbles in dishsoap water per seccond) so may have just fractured a solder joint knocking the core out (I need to press them out…Last Post by:
posted: 2 years ago
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Aftercooler pitting
This topic has 2 replies, has 2 voices, and was last updated by
2 years ago September 1, 2021 at 5:36 am So about to put my intercooler back together and it has the typical pitting on the internal circular face at the bottom of the body casing, it doesnt cause any issues with sealing, however I was wondering if it was worth filling the pits with a skim of JBweld or something like JB tankweld putty just to prevent condensation etc from reacting and pitting even further? Just trying to eek more years out of the housing! Steve
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in: Cummins Marine Engines
2 RepliesSeptember 1, 2021 at 4:29 pm Thanks Rob Shouldnt be too much of a pain if using the putty as I can smear it in.. and the tolerances there are ‘loose’ to say the least. The face that meet the core ends is fine this is about 1/2″ up from there.. and not ‘critical’ surface.. i’m just trying to prevent corrosion.. and also stop more fur growing which seems to be what jams the core in… It strikes me that these things should be coated int…Last Post by:
posted: 2 years ago
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Turbo Questions – 6BTA 330
This topic has 2 replies, has 2 voices, and was last updated by
2 years ago August 31, 2021 at 6:52 am Hi Guys So 3 years after having my turbos recon’d and 3 years passing in a flash and not having time to address the ‘risers’ I noticed when doing some minor maintenance that 3 of the 4 turbo to elbow bolts had snapped off (big patch of soot) I have removed the elbow and there is no evidence of rust / water getting up into the dry section, manifold is clean too, so can only assume turbo corrosion is damp salt air (yes fresh wate…
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in: Cummins Marine Engines
2 RepliesSeptember 1, 2021 at 2:52 am Hi Tony The turbo is with the turbo guy so I cant get a picture. I know its damp, whether air or water.. its my fault and I accept full responsibility for not fixing the crap exhaust design in the time I have had.. Even if I had a picture you would tell me its water, fix the exhaust š Ive read and been around the forum to know its wrong and needs fixing, my business, 4 year old and everything stops me from fixing it properly – for now! Thi…Last Post by:
posted: 2 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…
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in: General Discussion
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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Yanmar 230 HP Engine mount Alternative
This topic has 8 replies, has 3 voices, and was last updated by
3 years ago February 23, 2021 at 3:30 pm Hi Tony I have the 230HP 4LHA-STP Yanmar motors in my Bertram 28 in which I am looking at replacing the engine mounts. I saw your reply to Bill Fuller’s comments in 2018 and you suggested the R&D PYI engine mounts with a capacity per mount of 120-410lbs. I am in Australia and R&D don’t supply that mount here and have suggested two alternatives, one with a capacity of 300-683lbs capacity per mount and the other with a capacit…
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in: All Other Marine Diesels
8 RepliesMarch 19, 2021 at 4:29 pm Either 50’s or 60’s for the rear..Last Post by:
posted: 3 years ago
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Freshwater flushing, worth the effort?
This topic has 16 replies, has 10 voices, and was last updated by
3 years ago February 23, 2021 at 5:11 am For those sitting on the fence about doing it, I thought I should share this. I just pulled one of my aftercoolers, 16 years old, 3.5 years since last serviced,100% salt water use, freshwater flushed after every use – been flushing since they where new. Pulled the caps and the core slid out without any effort, not one tube was blocked. Pics 1 to 4 taken as it was disassembled, everything still covered in metalube, pics 5 to 9 taken after c…
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16 RepliesMarch 6, 2021 at 10:10 am And there are still those that do not believe in fresh water flushing & using the proper assembly practices & grease starting from DAY 1 .. Compliments of Bill Fuller ( Yanmar 4LHA 230’S) .. He listened to me 21 yrs ago.Last Post by:
posted: 3 years ago
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Code 559 low fuel pressure – accelerating
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