- EnviroVent CCV for QSB5.9
This topic has 10 replies, has 8 voices, and was last updated byTerry Kerr 2 years ago
March 6, 2019 at 7:39 amTony, i currently have the Airsep system on my QSB 380 engines and I read the article on your replacement system and am considering changing mine out to your system.I couldn’t find a picture of the QSB with the EnviroVent installed and was curious of how it was installed.Is the oil drain line and checked valve removed and blocked off ? I’m assuming so after reading the article but would like to see an install if possible.Thanks, Troy
Started by: Troyin: Cummins Marine Engines
10 Replies
August 20, 2021 at 2:41 pmIf you didn’t get the caps to cap off the hose left over from the the walker Airseps, perhaps the box was not checked when ordering?When ordering the Envirovent CCV, However, it it does ask if you have an existing walker airsep system. I checked “yes” and received the caps in the box.OlPhartzLast Post by: Terry Kerrposted: 2 years ago
- QSD4.2 – Low RPM WOT
This topic has 10 replies, has 5 voices, and was last updated byTony Athens 5 years ago
February 20, 2019 at 2:35 pmHi All,We have a Back Cove 30′ powered by a single Cummins QSD4.2 (350HP). RPM at WOT is 400 revs below factory spec, and we’ve seen progressively lower WOT RPM over the past six months. I’ve done a sea trial with a mechanic, and we don’t have a clear path about what to do next. I’m interested in your advice, and I’ve read the great low power troubleshooting article.Some details:Factory WOT is 3850 RPMAc…
Started by: Adam Resnickin: Cummins Marine Engines
10 Replies
February 22, 2019 at 8:05 pmAdam,I’ll give you two answers, but both are really the same..1) You either have not read the “Propeller moves boat” article, or you did, and you do not understand the base principle in it..and / or2) You are in denialDon’t worry, you are not alone..As I said, this is your call from here fwd and the numbers you posted do not lie…Do you believe 1+1=2 ? Think about it….TonyTony AthensSeaboard Fo…Last Post by: Tony Athensposted: 5 years ago
- Marine AC
This topic has 10 replies, has 4 voices, and was last updated byDan 5 years ago
February 14, 2019 at 8:21 amMy AC pump and strainer are mounted in a near impossible location to access/reach in the boat, I am contemplating moving the strainer to an area that is essentially at the same height as the AC unit itself,the pump will remain at the same level below the waterline.Weed can and does often fill the strainer in a matter of hours,and getting to it requires a midget on board and ends up being a messy affair, I have a great location I can move it to…
Started by: Danin: General Discussion
10 Replies
February 17, 2019 at 7:22 amRodger,Thanks for the input,I have a freshwater flush tee on the intake side of the pump now I have used it to prime the pump on occasion,the preferred time for the strainer to block and the AC to shutdown seems to be around 2AM and the bride goes on the warpath…To clean the strainer I have to raise the entire helm section and crawl across one of the motors reach down and do it entirely by feel.The other option is to open the small access hatc…Last Post by: Danposted: 5 years ago
- 6CTA 480 secondary fuel filter install
This topic has 10 replies, has 3 voices, and was last updated byGreg Weaver 5 years ago
February 8, 2019 at 7:25 pmHi all.So I have had my boat since early September, the previous owner was not running her much so I have been working on cleaning up the crap in the tanks.After purchasing the boat ” 35 Carolina Classic ” I purchased 12 primary filters because i knew i’d blow through them, and I have.1st thing I did was have my main tank polished, we removed a fair amount of crud, pumped tank out and inspected with scope and look really g…
Started by: Greg Weaverin: Cummins Marine Engines
10 Replies
February 9, 2019 at 7:44 pmJust came from the boat.33 degrees out nowEngine room right at 58 degrees with Wolverine 250’s running 24/7Disconnected POS and NEG from heater grid at manifoldKey to on position and zero faults like Tony said.Fired engine up and smoked no more than it usually does.Voltage running was 13.80If this is the wrong way to temporarily disable the heater grid Please, please chime in.Once my fingers heal and it warms up some, I will comple…Last Post by: Greg Weaverposted: 5 years ago
- Repitch prop?
This topic has 10 replies, has 5 voices, and was last updated byTony Athens 5 years ago
January 22, 2019 at 11:54 amI have Cummins 330 Diamond 6BTA’s. I phototached them and they’re running at 2750RPM with the boat lightly loaded… around 2700 heavy loaded. My props are 26×24. I verified WOT in neutral at 3150.Should I assume that 1″ of pitch drop = 200 rpm?What should I shoot for in terms of heavy loaded WOT? I was thinking 2950 which would require 2.25″ pitch change (from 2700 to 2950 = 250).
Started by: Mike Schmidtin: Cummins Marine Engines
10 Replies
January 25, 2019 at 12:05 pmAll planning boats should use Class I props or better. But even more important is overall prop design and condition as to whether it is applicable to the vessel needs.. Just like flat tires don’t work with a performance cars, crap props & old fashion designs do not work well on planing boats.Let’s “see the scan”..Tony.Tony AthensSeaboard FounderGo here for the latest stuff we put together and share for all to …See AlsoSUMMONS + COMPLAINT July 29, 2024Proof Bakery! | OBX Connection Message Board20 Of The Most Fun Things To Do In Outer Banks, North Carolina (don't Miss #12)The Irish Food Trade Connect Forum on LinkedIn: We're excited to hear about your plans for the bank holiday weekend! How…Last Post by: Tony Athensposted: 5 years ago
- Qsb fuel burn question
This topic has 10 replies, has 6 voices, and was last updated byTony Athens 5 years ago
December 16, 2018 at 9:39 pmI recently added a fuel capsule to my mechanical guage to plug into the madusa harness on my qsb’s. I have a single 295 gallon tank and hooked the wiring from the fuel capsule to the starboard side madusa harness. I went to my vessel view 4 and could see the tank reading 132 gallons at the dock. Went surfing today off Point Loma and ran the boat a max of 12 miles. Per my recent fuel tank hook up, the screen said I have 103 gallons. This …
Started by: Mike Masonin: Cummins Marine Engines
10 Replies
January 1, 2019 at 6:20 pmYou said: “Smartcraft Frowned On”Understand that “SmartCraft” electronics only takes what the base CM850 ECM processor on the engine that puts out as SAE J1939 data on ONE twisted pair of wires. Then, SmartCraft wizardly converts that data to a Mercury electronic protocol and then tries to tell you way is says, but does it using 10+ times the wires and connectors.It also adds all sorts of “bells & w…Last Post by: Tony Athensposted: 5 years ago
- QSB6.7 trolling
This topic has 10 replies, has 4 voices, and was last updated byJustin Riege 5 years ago
November 19, 2018 at 8:12 amI have 2013 QSB 6.7’s. I’d like to know if slow trolling in and out of gear is OK.Also, what is involved with installing trolling valves.Thanks.
Started by: steve lehmanin: General Discussion
10 Replies
November 26, 2018 at 1:50 pmSorry for the delay, I was out of town and off the grid for the holiday.The kit doesn’t specifically come with instructions but we can do our best to walk you through it remotely.I would say you need to be reasonably mechanical, not that its exceedingly hard to install a trolling valve, but if you cross thread the sending unit, or strip a bolt that holds the assembly to the gear, or anything like that it could be a costly or at least a t…Last Post by: Justin Riegeposted: 5 years ago
- 30 amp plug
This topic has 10 replies, has 8 voices, and was last updated byDan 5 years ago
November 13, 2018 at 2:32 pmI have a 50 amp service and a 30 amp service on my 38 Tiara.The 30 amp has been popping the breaker when only drawing about 15 amps so I took the outlet apart and noticed some melting in the outlet.There is no extra wire to pull out so I can cut back on the wire so I was going to pigtail more wire so I have room to work.is crimping this wire the norm for this situation.thx Bill
Started by: William Walterin: General Discussion
10 Replies
January 28, 2019 at 10:50 amWilliam.Hard to tell from your pic but it looks like your connection is the same as mine was on my Pursuit, low on the deck and getting washed in salt water on rough days and soaked when it rained, and the cables all over the deck.Another option if it works for you would be to shift it up under the gunnel where it stays dry, on mine the cable actually dropped down to the original location so I didnt have to lengthen the wires. I put a plate ov…Last Post by: Danposted: 5 years ago
- Jog Steering
This topic has 10 replies, has 4 voices, and was last updated byjohn 5 years ago
October 26, 2018 at 5:48 pmI finally got around to installing jog steering in my Downeaster. I used an Octopus variable piston pump, a reversing relay and 2 HD soft switches.The pump output is adjustable. I have it set for 11 seconds full sweep. Seems to work as planned.
Started by: Fireisland1in: General Discussion
10 Replies
October 29, 2018 at 6:09 amFireisland1 wrote:Thanks Rob. I’m a pretty good inventor. The only problem is most of my inventions already exist. I should get out more.Yes it’s tough when you have to compete with a nice lever like Tony put up. All in one. It’s alway nice to have the ability to make your own and watch it work.Another question for tony. Why the two pumps with the accusteer pump setup?Last Post by: johnposted: 5 years ago
- Zeus Pods: Good, Bad, Ugly??
This topic has 10 replies, has 7 voices, and was last updated byMark Rinker 4 months ago
October 14, 2018 at 10:15 pmI am considering buying a Meridian 441 flybridge ‘motor yacht’, which is 47’ LOA and 31,000lbs. These come with various engine configurations but commonly, with QSB 425’s which can be either shaft-drive or Zeus pods. All my personal experience to date is with 6BTA 370’s in a conventional shaft drive arrangement.I am after some of Seaboard’s famous frank and honest advice: should I run away from pod drives….or go for them if they have a so…
Started by: Paul Greenhalghin: Cummins Marine Engines
See AlsoExperience A Day At Tahbilk10 Replies
March 18, 2024 at 1:07 pmLots of helpful information found hereMercruiser Zeus Pod Owners GroupThe most important upgrade for Cummins QSB / Zeus owners is the Seaboard Marine water pumps and impellers!!! Keeps the temperatures down and extends the life of the steering seals. Cool water flow is key!Last Post by: Mark Rinkerposted: 4 months ago
- Belt/Pulley squeal help
This topic has 10 replies, has 3 voices, and was last updated byMike Mason 5 years ago
October 14, 2018 at 8:57 pmWe get this squeal after the boat sits for a week or so. Any ideas? Thanks.Qsb 5.9’s1300 hrs
Started by: Mike Masonin: Cummins Marine Engines
10 Replies
October 16, 2018 at 8:00 pmBelt was loose. Fired her up and no squeal. Stuffed my head in front of the engines and noticed both belt tensioners had a little noise coming from them. Hit the, with some lubricant and now things sound right.One some point both the seawater pumps leaked as both mounts below the pumps are not looking great.Thanks for the info.MikeLast Post by: Mike Masonposted: 5 years ago
- Aetna Tachometers and VHF Noise
This topic has 10 replies, has 3 voices, and was last updated byBill Taylor 5 years ago
October 1, 2018 at 4:46 pmI recently installed a pair of Aetna Tachometers, model 8905R-P-DS LCD in the tower of my boat. I used Belden, twisted pair, shielded 16 guage wire for the signal wire. The tachometers work great and are very accurate. I have power supply running from 12V power panel in the tower with toggle switches and fuses, so I can turn them on and off. They are not wired to the ignition switch.The problem is I’m getting a lot of noise on my VHF radi…
Started by: Bob Watersin:
10 Replies
January 7, 2019 at 8:30 pmRob: Thanks for the info and the diagram. Now only have to decide whether I need the shielded cable. As for the LED, thanks, yes on the fly bridge it will have to be LCD for sure as I only operate in the day light. I am also looking at installing the ISSPRO R609 Turbocators on the fly bridge. As an old gas man my diesel learning curve is steep and question keep arising. My next issue will be bleeding especially when I am changing fuel fi…Last Post by: Bill Taylorposted: 5 years ago
- need info – no cpl
This topic has 10 replies, has 3 voices, and was last updated byCharles A. Beever III 5 years ago
September 20, 2018 at 2:56 pmHello all. New to forum but have been learning from it for a long time. Hope to someday meet Tony and the crew at SB. I am looking at a boat equipped with a single 6bta (inboard), with a fresh water cooled “tombstone” style aftercooler and a lucas cav injector pump. The cpl tag is missing, I’m told the engine was used in a freshwater irrigation pump (farming) application.I have read up on the 250 hp 6bta but the datasheets…
Started by: Charles A. Beever IIIin: Cummins Marine Engines
10 Replies
September 26, 2018 at 4:03 amAfter seeing these pics are we still thinking CPL 953? How much HP on 953?Fuel consumption similar to 220 6bt with rotary or 250 6bta with bosch?Gracias.CharlesLast Post by: Charles A. Beever IIIposted: 5 years ago
- Re-powering a Sportfisher Newbie Help
This topic has 10 replies, has 5 voices, and was last updated byGiles Sankey 5 years ago
August 20, 2018 at 10:25 amThis forum site seems to the most knowledgeable group in my area (from Simi Valley). I am in the market for a used Sportfisher. Some years ago I had a 30′ Carver with gassers, and then a 28′ Tollycraft with gassers also. Not going that route again. They were very unreliable, and I purchased with problems.I am looking for advice how to proceed with purchasing this time. I would like to purchase a used Sportfisher for a great deal be…
Started by: Giles Sankeyin: General Discussion
10 Replies
August 22, 2018 at 3:30 pmI am still researching many options. I have found a boat which looks to be in excellent condition but needs the 318s rebuilt. Wondering now what that cost could be. I totally understand the 1/3 extra rule, and I have budgeted for that cost and then some.GilezLast Post by: Giles Sankeyposted: 5 years ago
- 2011 391 Meridan 5.9 QSB 380 HP cruise RPM
This topic has 10 replies, has 5 voices, and was last updated byserfdadz 5 years ago
August 19, 2018 at 8:15 amNew bottom wheels turned to allow 3070 RPM WOT at 30 MPHWhat cruise RPM?If I run 80% of load I am pushing 2850 RPMI was running yesterday at 2625 RPM 71% load 82% of throttle & 25 GPH I see no reason to run these over 2600 RPM since PEAK hp is reached here.So which is more important %of throttle or load (readings from vessel view)
Started by: serfdadzin: Cummins Marine Engines
10 Replies
August 22, 2018 at 10:56 am2,000 rpm 8.75 GPH2200. 10.552400. 11.152600. 12.93/4 fuel 2 on board in the river current light wind calm waterDid a tad better in the gulfCruising at 2550 close to 12 GPHLast Post by: serfdadzposted: 5 years ago
- raw water coolant flow rate at idle??
This topic has 10 replies, has 7 voices, and was last updated bymarks737 5 years ago
July 30, 2018 at 11:27 amThis is a question which may cause me to modify my fresh water flushing approach. First, if anyone can check my calculation, that would be great. Per a spec sheet I have for a C series 400 engine, raw water flow is 63 gpm (assuming that number is at rated rpm. So, doing the math, I calculate a flow of 14.5 gpm 18.7 gpm at an idle of 750 rpm.A calculator I found online indicates that my city water connection via 5/8th’s 50 foot hose…
Started by: jamesin: Cummins Marine Engines
10 Replies
November 22, 2018 at 8:06 amRob,This is my first winter with this boat and Cummins engines. I’ll try flushing both ways next season and see what happens. Thanks!Last Post by: marks737posted: 5 years ago
- Loss of Power
This topic has 10 replies, has 4 voices, and was last updated byTony Athens 6 years ago
July 29, 2018 at 3:15 pmI have 2008 5.9 QSBs (425hp) with approx 650 hrs and the port engine just developed an issue.So here’s the situation:Day -7: Rough trip back to the dock in rough/choppy bay but everything seems ok (seat of the pants assessment but I wasn’t looking for an issue).Day -1: 1 hr run to marina and noticed that both engines seemed to be ‘off’ (boat not traveling at usual speed at usual RPMs and GPH slightly elevated) but ca…
Started by: Jeffrey Cohenin: Cummins Marine Engines
10 Replies
July 31, 2018 at 7:00 pmLoose Boost = ECM limits fuel = limits HP = LIMITS RPM. TonyTony AthensSeaboard FounderGo here for the latest stuff we put together and share for all to see:https://www.sbmar.com/tonys-tips/Last Post by: Tony Athensposted: 6 years ago
- New Raw water Pump?
This topic has 10 replies, has 3 voices, and was last updated byBob Neill 6 years ago
July 6, 2018 at 12:03 pmLooks like I need to replace my “junk” Sherwood water pump! What pump and accessories do you recommend for a 6B, CPL 970, 300 hp? Inlet port is 2”, outlet port 1.5, I would also like to reconfigure the gear cooler placement with the proper bracket. The PO installed it between outlet port and aftercoolers. Any suggestions would be appreciated.Bob
Started by: Bob Neillin: Cummins Marine Engines
10 Replies
July 10, 2018 at 6:00 amRobThanks for the reply. Reached out to Kevin via email. I do not have any of the hardware for mounting the gear cooler looks like I need part 8 and 9 in the diagram. I believe they are standard coolers which I’ll be replacing next season.BobLast Post by: Bob Neillposted: 6 years ago
- 6CTA 8.3 M1 oil in coolant
This topic has 10 replies, has 4 voices, and was last updated byalex1 6 years ago
June 20, 2018 at 9:14 amHi Tony and everyone else,I was in my engine room all day today, entire saloon floor taken up for plenty of headspace and light. Was swapping out some old gear oil cooler hoses as well as some coolant vent lines on port engine, after going to the hydraulics shop yesterday. Late in the afternoon, almost everything done I changed my coolant filters. Port engine, no problem. Stb engine… after unscrewing the filter a few turns, the first liqu…
Started by: alex1in: Cummins Marine Engines
10 Replies
August 3, 2018 at 6:30 amDone about 25+ hours now, since the flush, including some longer run outs, where engine engine speeds have been 1800-1900 Rpm. Now – we have dirt in the coolant. It’s not a lot, but quite clear to see. Any thoughts? Engine has still been operating at expected temps and nothing else out of the ordinary going on.Last Post by: alex1posted: 6 years ago
- Twin Cummins 330’s 6BTA 5.9 M-3 in a 1999 Maxum 4100 SCA
This topic has 10 replies, has 3 voices, and was last updated byPaul 6 years ago
May 21, 2018 at 8:49 amAgain, thanks for the add. I’ve been lurking and doing a lot of forum and Tony’s Tip reading – I have twin Cummins 330’s 6BTA 5.9 M-3 in a 1999 Maxum 4100 SCA that are running great right now (knock on wood), but I know I’ll be asking questions about them in the future. Now onto my question.I know this is a long shot – but figure there are experienced people here that might be able to help. …
Started by: Paulin: Cummins Marine Engines
10 Replies
August 4, 2018 at 1:07 pmGlenn,No hour meter on mine … switches on the panel itself (upper left of AC) & temperature, oil pressure and output voltage, but no hour meter.PaulChanges in L'Attitudes1999 Maxum 4100 SCATwin Cummins 330HP 6BTA 5.9-M-3Last Post by: Paulposted: 6 years ago
