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Cummins Marine Diesel Repower Specialists › Forum community

Viewing 20 topics - 5,601 through 5,620 (of 5,629 total)
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    • Cummins Marine Forum Topics
    • Dip Stick Extension

      This topic has 1 reply, has 2 voices, and was last updated byCorey Schmidt 8 years ago

      November 22, 2016 at 3:54 pm Is it possible to get an oil dip stick extension like the one in the picture for a QSC?  It is starting to get old climbing down into the bilge every time.

      Started by: Kyle G in: Cummins Marine Engines

      1 Reply
      November 22, 2016 at 5:25 pm Kyle… we should be able to get that for you… Drop brad a note with your engine serial number and let’s see what we can do. brad@sbmar.com Corey Schmidt | VP, Operations | Seaboard Marine, Inc.

      Last Post by: Corey Schmidt posted: 8 years ago

    • Cooler Maintenance

      This topic has 7 replies, has 2 voices, and was last updated byTony Athens 8 years ago

      November 10, 2016 at 7:28 pm I put this up on boatdiesel.com but thought I’d try here too. I had my coolers serviced with an ultrasound cleaning. I was surprised to discover that every lick of paint was removed right down to bright aluminum. Do I paint the inside of the cooler housing as well as the outside to provide some barrier to the seawater exposure? If so, any paint recommendation? Also there is some pitting on the cap/housing mating surface? I was planning on …

      Started by: Jerome Billett in: Cummins Marine Engines

      7 Replies
      November 22, 2016 at 5:17 am Glad things went well..   Tony Seaboard Founder & President

      Last Post by: Tony Athens posted: 8 years ago

    • Need 6BT5.9 330 Survey in Alameda

      This topic has 4 replies, has 3 voices, and was last updated byDavid R Flamer 8 years ago

      November 14, 2016 at 10:42 pm Group I am involved with the acquisition of a boat for our club.  The one currently in line is in Alameda, CA (east bay) with 330B’s. If someone has a referral to do the mechanical survey (also a Northern Lights generator) I am all ears and would greatly appreciate it.

      Started by: David R Flamer in: General Discussion

      4 Replies
      November 21, 2016 at 10:55 pm Just as a follow up, Vaughan C will be doing the mechanical survey.

      Last Post by: David R Flamer posted: 8 years ago

    • New style head

      This topic has 1 reply, has 2 voices, and was last updated byTony Athens 8 years ago

      November 17, 2016 at 6:12 pm just found some paperwork in boat from the sale of the boat to the person I bought boat from.in 2010 on port engine a new style head with updated valves installed plus #3 cylinder and turbo charger installed.in 2011 same thing except #4 cylinder.was this a common acurrance on this engine with Cummings replacing head and valves due to valves not seating properly or perhaps something else .it was covered under Cummings warranty good will program.b…

      Started by: William Walter in: Cummins Marine Engines

      1 Reply
      November 21, 2016 at 8:09 am Walter,   Without some history to this thread or question, not sure what you are asking–Got to keep all in one long string.   Tony Seaboard Founder & President

      Last Post by: Tony Athens posted: 8 years ago

    • Fuel filter with automatic drain

      This topic has 1 reply, has 1 voices, and was last updated byScotth 8 years ago

      November 20, 2016 at 9:15 pm Our local marine supplier is promoting these filter units instead of Racors or behind Racors, anyone have any experience with these?  The word is the automatic drain works well when you get a slug of water in your fuel.  (common in remote AK).  First I heard of them was this week at Fish Expo in Seattle.  Tony, any experinience with these? https://schroederindustries.com/Products/fuel-filtration/diesel-fuel-coalescing/on-board-diesel-filtration/…

      Started by: Scotth in: General Discussion

      1 Reply
      November 20, 2016 at 9:42 pm Try this link: https://schroederindustries.com/Products/fuel-filtration/diesel-fuel-coalescing/on-board-diesel-filtration/HDP-HT-Automatic-Drain

      Last Post by: Scotth posted: 8 years ago

    • Engine Mounted Circuit Breaker

      This topic has 8 replies, has 4 voices, and was last updated byWoo 8 years ago

      November 18, 2016 at 6:21 am In the Preheater post this heater diagram was uploaded by Tony.  I boxed in red what is listed as a “fuse”.  Tony or anyone, please correct me if I am wrong but that “fuse” is actually the engine mounted 10amp circuit breaker that I show in the attached picture.  For anyone not familiar with this breaker, if the connections to the base of it come loose you will shutdown, no different than shutting of the key switch.  Chec…

      Started by: Rob Schepis in: Cummins Marine Engines

      8 Replies
      November 20, 2016 at 5:08 pm Oh for sure…. sorry I didn’t make it clearer. The blower gets it’s power elsewhere, I’m only looking for switching power for the relay as you now know. I’ve struggled to find a constant 12v with the engine running, and I want to avoid going anywhere near the fuel solenoid.

      Last Post by: Woo posted: 8 years ago

    • 6BTA5.9 Preheaters

      This topic has 12 replies, has 4 voices, and was last updated byWilliam Walter 8 years ago

      November 15, 2016 at 7:01 pm The mechanic who was previously looking after our engines disconnected the preheaters on the top of the aftercoolers and told me when I asked it was because the engines didn’t need them in our hot climate and they are not good for the alternators. Is this true or should I reconnect them? The other thing is he just disconnected them by taking the leads off the terminals at the preheaters then taped them up. It looks untidy so if they are no…

      Started by: Brett Griffin in: Cummins Marine Engines

      12 Replies
      November 20, 2016 at 6:23 am Thanks for info .i probably won’t use them as a standard practice as the downside seems to heavily outweigh the upside.

      Last Post by: William Walter posted: 8 years ago

    • After cooler

      This topic has 2 replies, has 3 voices, and was last updated byCorey Schmidt 8 years ago

      November 17, 2016 at 6:44 pm What is the purpose of the rubber like strips on the fins of the after cooler? Should they be replaced when servicing the after cooler?

      Started by: Raymond W Smith in: Cummins Marine Engines

      2 Replies
      November 17, 2016 at 10:02 pm Once again, Rob hit the nail on the head… they are worthless! The trashcan is the ultimate destination for those things… Corey Schmidt | VP, Operations | Seaboard Marine, Inc.

      Last Post by: Corey Schmidt posted: 8 years ago

    • QSM11 prop size

      This topic has 7 replies, has 3 voices, and was last updated byRob Schepis 8 years ago

      November 15, 2016 at 11:58 am Hello all, New to this site. Like many others I have experienced exhaust leak issues on my QSM’s. They are 2003 builds, commissioned in 2004. The data plate hp is stamped 650. Now have 2500 hours. Within the first 500 hours my starboard had leaks and since then there have been three services on the motor, the last being with new manifold and turbo. In the last year my port has succumbed to the same issue, but for some time exhibited very l…

      Started by: Jack Blaisdell in: Cummins Marine Engines

      7 Replies
      November 17, 2016 at 7:31 pm No problem Jack.  Finest Kind is gorgeous.  She just has to raise some fish lookin’ that good! My sportfish also has a sharp entry and flat stern section (even flatter than Finest Kind) making for a very easy planning boat and a super stable platform at anchor or drift.. Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

    • Thanks

      This topic has 1 reply, has 2 voices, and was last updated byRob Schepis 8 years ago

      November 17, 2016 at 1:48 am I am Zeki from Istanbul/Turkey, a mechanical engineer. Nice to be in here. My boat is a motor yacht, Carver42 with 2xBTA 370 . Sunny days and nice weather on the seas to everyone in this forum.

      Started by: Zeki Karadeniz in: General Discussion

      1 Reply
      November 17, 2016 at 5:48 am Welcome Zeki, from a fellow mechanical engineer. The sun is shining here in the Northeast US but the temps are dropping and the leaves are falling.  A bittersweet time of year for us boaters Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

    • alternator output qsm-11

      This topic has 7 replies, has 3 voices, and was last updated byRob Schepis 8 years ago

      November 13, 2016 at 10:48 am Had alternator (delco 22si) stop putting out volts so removed and had it rebuilt. Installed it today (added new belt) and now its putting out 14.50 volts at idle. Drops to 14.35 at 1800rpm. I thought this alternator was regulated at 14.2? Is this enough voltage to damage batteries? Not a big deal and run it for awhile or pull it off again and take back to alternator shop? Engine is 535hp QSM-11 with 3,000 hrs. thanks, tom

      Started by: Tom Gaddis in: General Discussion

      7 Replies
      November 15, 2016 at 9:07 pm Did you check with the battery manufacturer?  I did some more reading on this and found on Optima’s website that alternator charging max voltage is 15.0 volts… Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

    • QSM-11 Initial Ignition of Engine

      This topic has 7 replies, has 4 voices, and was last updated byPatrick 8 years ago

      November 9, 2016 at 9:31 am I have 2003 QSM-11 with pretty low hours. When I first turn on the main power to the engine, then turn the key on and wait for its testing routine. I then press the start button, it start then immediately cuts out. If I leave the main power on but turn off the engine and let it sit for a week or so I’ll have the same problem. I then go to the main power for the engine, turn it off, then turn the power and the key back on, wait for the test…

      Started by: Thomas Duggan in: Cummins Marine Engines

      7 Replies
      November 15, 2016 at 6:49 pm Before getting carried away, try replacing the ignition rectifier behind the helm station.  No guarantees, but a cheap part to replace known to create odd starting issues.  I had odd ignition issues on a 2006 QSB 5.9 that were solved when I replaced the rectifier and verified the connections were good.

      Last Post by: Patrick posted: 8 years ago

    • Transmission oil Results

      This topic has 2 replies, has 3 voices, and was last updated byTony Athens 8 years ago

      November 15, 2016 at 5:26 am Looking at purchasing a Sea Ray Sedan Bridge 400 with ~500 hours on Cummins 6CTA engines with ZF transmissions. What is the oil change interval recommended? Oil sample results came back high on both transmissions for Iron and Copper.  Both were about the same with Iron at 63 ppm and Copper 495ppm. Is this normal or to be expected? Signs of an issue?

      Started by: Gavin Nagle in: Marine Transmissions

      2 Replies
      November 15, 2016 at 6:12 am A random oil sample on a properly operating gear, one with low hours, & one that has a visual oil inspection that looks clean & passes a “smell test” for anything burnt, is close to meaningless…………….Any experienced surveyor should know that, although in most cases rarely want to offer any opinions on the matter. Post some good pictures of the engines and the gear from all angles and perspectives.…

      Last Post by: Tony Athens posted: 8 years ago

    • THE REAL REFERENCE FOR THIS PROPELLERS ??

      This topic has 5 replies, has 3 voices, and was last updated byTony Athens 8 years ago

      November 14, 2016 at 5:33 am

      Started by: FRANCISCO BORJA REIS in: General Discussion

      5 Replies
      November 14, 2016 at 7:25 pm Francisco, #1———-If your Cummins 6BTA 5.9 370 Diamonds are in tip-top shape, then understand this if you want for the best possible performance, coupled to overall economy, ability to jump up on plane easily and then attain the  long term reliability. For PROPPING PURPOSES, you have 355 BHP at 3125-3150 RPM  to work with. That means your engines MUST easily spin up to well over 2900 RPM while accelerating and then be able to at…

      Last Post by: Tony Athens posted: 8 years ago

    • Suspected Fuel Pump Leak

      This topic has 2 replies, has 2 voices, and was last updated byWilliam Brown 8 years ago

      November 14, 2016 at 11:51 am While on a 14 day trip down the A-ICW we noticed a small diesel leak in the vicinity of the high pressure fuel pump.  It does not appear to be coming from any of the inlet/outlet fittings.   The engine is 6 years old and has 638hrs running time.   A single paper towel placed under the pump could absorb the amount of diesel leaking after an 8 hour run.     Does this type of leak eventually lead to a catastrophic engine failure?  Should the pump b…

      Started by: William Brown in: Cummins Marine Engines

      2 Replies
      November 14, 2016 at 2:50 pm Tony, thanks for your comments.   I suspect the rust is from a previously failed seawater pump I replaced several hundred hours ago.

      Last Post by: William Brown posted: 8 years ago

    • New engine, old pyrometer, no work!

      This topic has 9 replies, has 3 voices, and was last updated byCorey Schmidt 8 years ago

      November 7, 2016 at 8:11 am repowered from one QSM 670 to new one and kept my old instrumentation, pyrometer, water flow and raw water heat alarms.  The 2 raw water alarms made the cut, the pyrometer did not.   i have power to it (lights up with ignition on) but the needle never moves past 90 degrees.   When the I nine came out the probe was removed and put to the side, no wires cut, the gauge was unplugged at the dash, clipped at the 2 12 volt leads and then reinstal…

      Started by: Larry Backman in: General Discussion

      9 Replies
      November 13, 2016 at 3:12 pm That’s great news… glad you got it sorted out! Corey Schmidt | VP, Operations | Seaboard Marine, Inc.

      Last Post by: Corey Schmidt posted: 8 years ago

    • Winter lay up

      This topic has 2 replies, has 3 voices, and was last updated byTony Athens 8 years ago

      November 13, 2016 at 4:58 am There is discussion on another forum I am on about oil changes for fall decommissioning.  I would like for Tony to weigh in if possible.  Thanks for this Forum BTW. I have a QSC 8.3 500hp.  I average about 110-125hrs per season.  ( Was advised to to the following from the mechanic that rebuilt a KAMD42 for me) I change my oil after the boat is launched for the season, change at 100hrs during the season, and change again no matter what the meter …

      Started by: Kyle G in: Cummins Marine Engines

      2 Replies
      November 13, 2016 at 6:32 am Kyle,   I’m on your side…Old school ideas take a long time to go away…..Engine hours, fuel use during those hours versus  Oil Pan capacity are the things that should be used to determine oil change intervals.. Changing oil before a winter lay up would only make sense if you were all ready do for one.   Tony Seaboard Founder & President

      Last Post by: Tony Athens posted: 8 years ago

    • Heat Exchanger Flat End Cap Fix

      This topic has 2 replies, has 2 voices, and was last updated byRob Schepis 8 years ago

      October 19, 2016 at 9:25 pm Is your heat exchanger cap weeping at the outer perimeter?  Is it “flattened” from years of over-tightening?  It is important to put the “concave” back in the cap if it has been over tightened over time and flattened. Think of the cap as a big lock-washer as you “snug” it up. If it´s too flat you will crush the center gum washer before putting any sealing pressure on the outer perimeter. Here’s the fix i…

      Started by: Rob Schepis in: Cummins Marine Engines

      2 Replies
      November 13, 2016 at 5:50 am Yes Dan, works well.  Always a good thing when the guy “at-profit” tells you how to fix something rather then selling you a new one.. Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

    • newbie trans questions

      This topic has 19 replies, has 4 voices, and was last updated byDalton 8 years ago

      November 7, 2016 at 9:00 pm I have cummins 6bta engines and the boat is new to me but a 1999 with 500 hours. Fluids have been changed prior to my purchase. While looking everthing over I saw a dipstick on the transmission and another T-Handle type thing. When i slightly turned it I heard some air pressure release. What is this?

      Started by: Dalton in: Marine Transmissions

      19 Replies
      November 12, 2016 at 8:25 pm Great info guys! So here is my model of trans Hurth HSW 800 A2 2.0 As for that water puppy pump. I’m actually looking for something to pump out the oil from my 6BTAs, the trans, and even coolant from my generator so I can remove the heat exchanger. Do you recommend this pump for the job? It looks like just a standard bilge pump…? Side note, found out my westerbeke 12kw generator isn’t sucking any sea water at all. Only ran it f…

      Last Post by: Dalton posted: 8 years ago

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