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Cummins Marine Diesel Repower Specialists › Forum community

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    • Cummins Marine Forum Topics
    • ZF285A – 2 questions

      This topic has 3 replies, has 2 voices, and was last updated byRob Schepis 8 years ago

      December 11, 2016 at 9:08 pm 1. I want to remove shift and trolling solenoids to clean screens. Can I just unscrew and spray with brake cleaner? Will that be ok for the o-rings?   2. I removed the 24mm bolt just under the filter in an attempt to clean the suction screen. Oil came rushing out and it appeared to be more of a cap plug and I didn’t immediately see the suction screen. Help.     thanks in advance….

      Started by: Philip in: Marine Transmissions

      3 Replies
      December 12, 2016 at 7:33 am If I recall my 220A drain plug is either 22 or 23mm, yours could be the same.. Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

    • QSC 490 to ZF286A

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

      December 3, 2016 at 6:32 pm Need information on connecting QSC 490 to ZF286A.  The gears have Flywheel coupling & SAE3 housing adapter.  What else is used in this connection and is the SAE 3 the correct one for these engines?

      Started by: Dennis in: Cummins Marine Engines

      8 Replies
      December 7, 2016 at 8:22 pm Please just remove my post.  I must of have misunderstood the purpose of this forum.  When I called to inquire about ordering some parts the person on the phone instructed me to post any questions I might have to promote the forum.  It seems to have bothered you which wasn’t my intention.

      Last Post by: Dennis posted: 8 years ago

    • Cummins ETS on '07 QSB 5.9

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

      December 6, 2016 at 12:32 pm Can a Cummins ETS binnacle setup be swapped out/added to a boat that currently has separate electronic shifters/mechanical throttle controls?  The separate shift/throttle is on the 07 Meridian 391, but in 08 they switched to the ETS binnacle on the same motors. Id consider doing this to add the sync feature on the ETS, and removing the shifters currently there would free up some space at the helm for some electronics. Thank you!

      Started by: Robert Vetrano in: Cummins Marine Engines

      3 Replies
      December 6, 2016 at 4:30 pm No sweat… the conversions are straight forward in most cases but you will have to sort out the details when the time comes… thanks Corey Schmidt | VP, Operations | Seaboard Marine, Inc.

      Last Post by: Corey Schmidt posted: 8 years ago

    • Oil capacity

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

      December 6, 2016 at 1:29 pm Hi – We just pumped the oil out of our 6cta 8.3’s cpl 1282.  The spec sheet says 18 quarts pan capacity, 23.2 quarts total system capacity.  We got ~ 4 gallons per engine, which seems low.  The dip stick was complete clear after we pumped the oil out, and the we have an oil changer system which pulls from the drain plug on the pan. Any ideas why my volume appears lower than the spec sheet?  Level was just below the top of the dipstic…

      Started by: james in: Cummins Marine Engines

      1 Reply
      December 6, 2016 at 3:37 pm Tony has a very nice writeup on oil pan capacities that I hadn’t spotted before.  That cleared it all up for me.  Best  Jim

      Last Post by: james posted: 8 years ago

    • Convert Fresh water cooling to keel cooling Cummins 6BTA

      This topic has 2 replies, has 2 voices, and was last updated byCaleb Johnson 8 years ago

      December 5, 2016 at 12:51 pm I run my boat in very silty and shallow sandy conditions and I cannot keep my raw water pump working so I would like to change to keel cooling. My current setup runs raw water through my aftercooler, gear oil cooler, heat exchanger and out the exhaust elbow. I am wondering if I can just use my raw water pump to circulate coolant through my aftercooler, gear oil cooler, engine and then through an over sized fernstrum keel cooler? I understand it …

      Started by: Caleb Johnson in: Cummins Marine Engines

      2 Replies
      December 5, 2016 at 7:09 pm Thank you David for the reply.  So it sounds like the coolant circulation pump should have enough power to push coolant through the engine, transmission oil cooler and keel cooler? And if that works than the aftercooler could be connected to a separate keel cooler and circulated with the raw water pump. I wish this site had a picture of the coolant routing with arrows drawn in showing the flow. I saw a picture like this but it was for fuel flow.…

      Last Post by: Caleb Johnson posted: 8 years ago

    • Cummins 4BT

      This topic has 16 replies, has 3 voices, and was last updated byDan 8 years ago

      November 11, 2016 at 8:19 am I have  pair of 4BTA cummins in a pursuit,apart from the walker airsep’s leaking oil and the cold start pre-heater’s Ive had 1000 hours of virtually trouble free motoring. I’m aware of the 1000 hour service required,but in doing some research on it I see there was a lot of injector issues with these engines when first installed. One of my injectors has started to weep (externally) and I’m looking at the options to service…

      Started by: Dan in: Cummins Marine Engines

      16 Replies
      December 5, 2016 at 6:28 pm Tony I pulled one of the aftercoolers on the weekend,and was pleasantly surprised,no corrosion at all! Guess that freshwater flushing system I installed paid off! On the air side it was better than I was expecting,will get it all cleaned up and refit. I also installed the seaboard marine envirovent kits,your article on crankcase ventilation perfectly described what I was seeing with my “B” engines fitted with airseps,I’m glad t…

      Last Post by: Dan posted: 8 years ago

    • "What are the real differences between the 6BTA 315/330 & the 6BTA 5.9 355/370 D

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

      November 30, 2016 at 3:14 pm I run a 27 foot H&H Osmond Down East boat as a 6 man charter boat. The boat is powered with a 2001 330hp Cummins 6bta Diamond Series engine. CPL1975 The engine has just about 5400 hours on it. Overall it runs well. Max rpm are 2800 at start of season but seems to drop off to around 2700 mid season which I attribute to some growth and slime. The boat is kept in New Jersey. The propeller is a diameter of 23″ and a pitch of 21″. Ful…

      Started by: Frank Masseria in: Cummins Marine Engines

      3 Replies
      December 5, 2016 at 7:45 am Frank,   You will need to have your pump re-calibrated to a either a CPL 2208 or CPL8457 Spec and get new injectors for which ever CPL the shop can calibrate it to.   This is GOSPEL–Once you do this you will need to remove at least 2″ if not 3″ of pitch as now the engine will need to spin up to  (accurate) OVER 3100 RPM and do it easy.. The extra HP ( from 315 to 355) is there,  BUT ONLY above 2800 RPM.  If you do not…

      Last Post by: Tony Athens posted: 8 years ago

    • CAT 3196- crankcase over pressure- blowby

      This topic has 4 replies, has 2 voices, and was last updated byTony Athens 8 years ago

      December 2, 2016 at 8:42 pm Ferretti 53, 2001, 2 x CAT 3196, 66HP, 2000hrs- We bought the boat March 2015 and had a lot of servicing done. Turbos were overhauled, exhaust was corroded and exchanged and may other things. After that engines were running great but: Blowby… we have oil spilling out from filling cap and dipstick and a few other small drips from cylinder block… see pics… An engineer told us it might result from an incorrect pulling of the injectors to check them…

      Started by: hans-peter-mack in: All Other Marine Diesels

      4 Replies
      December 4, 2016 at 5:57 am The CCV  “Crankcase Vent”.. I Want a real good picture of it mounted on the engine –I need to “SEE” all the plumbing to and from it. I also want to “SEE” the air cleaner.. Then I’ll tell you what to do as to making it both work PROPERLY and also figure your “Blow-By” situation..   Tony Seaboard Founder & President

      Last Post by: Tony Athens posted: 8 years ago

    • ZF280A transmission

      This topic has 2 replies, has 3 voices, and was last updated byRob Schepis 8 years ago

      December 3, 2016 at 1:20 pm What size socket is required to remove the magnetic filter/ oil filter on a ZF280A transmission? Also socket size for the drain plug. Very difficult to get at on my boat so I want to be sure I have the correct socket on hand. Thanks, John

      Started by: John Piccoli in: Marine Transmissions

      2 Replies
      December 3, 2016 at 3:49 pm And another: Removing the Magnet / Screen Hex Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

    • Heat Exchanger core damage

      This topic has 4 replies, has 2 voices, and was last updated byJen Wren 8 years ago

      December 2, 2016 at 6:00 am Servicing the heat exchanger on one of my QSC 540 motors I discovered the water deflector at the end of the core has some holes eaten in it.  The slots on the end cap sit over the damage so it seems like over kill to replace it. I’m not sure what action to take?  Repair it with JB weld, lead solider, silver solider or just leave it along?

      Started by: Jen Wren in: Cummins Marine Engines

      4 Replies
      December 2, 2016 at 4:30 pm Thanks for the advice Tony.  I thought you had pretty much seen it all.  The boat was a bank short sale so I anticipated issues like this.  A guy loosing his boat most likely is not very religious changing zincs.

      Last Post by: Jen Wren posted: 8 years ago

    • Urgent and Time Sensitive Help on 480CE

      This topic has 9 replies, has 3 voices, and was last updated byTony Athens 8 years ago

      November 29, 2016 at 6:43 pm Over the past several months I have read nearly every post on the Series C message board. Just as everyone on this board I have learned a ton of information from Tony which has guided my search for a boat. I have until tomorrow to accept a 2004 Sea Ray 420 Sedan Bridge so, I need some advice pretty quickly. Here is the background on this boat. Both engines have just under 400 hours on them and the boat is in immaculate condition. We agreed on a …

      Started by: kzibby in: Cummins Marine Engines

      9 Replies
      December 2, 2016 at 12:22 pm You want to “match at 2200 RPM” and the rest takes care of itself. For your “prop guy” that means 270-275 HP max at 2200 RPM……….Lets see how he does. Tony Seaboard Founder & President

      Last Post by: Tony Athens posted: 8 years ago

    • Help with a few issues after engine rebuild

      This topic has 11 replies, has 3 voices, and was last updated byTony Athens 8 years ago

      November 24, 2016 at 8:35 am First off Happy Thanksgiving! Here is a little background. I bought a 28 Albin with a 370 Cummins (SN:60260856) in it that had sank prior to me buying it. I had the motor rebuilt and it now has about 20 hours on it since rebuild. The motor only had 20 hours on it before the boat sank last year. The motor runs great, but has a few bugs to work out. I figured it would given its history. 1.) The fuel shutoff solenoid is giving me a few issues. From…

      Started by: Nick Maudlin in: Cummins Marine Engines

      11 Replies
      December 2, 2016 at 7:45 am What you are looking at is the result of your Walker Sep doing a crap job–It is feeding oil to your Turbo Intake that is the result– 1)–  Remove the air side of the turbo –Clean all “Spic & Span”  Use a good solvent (Brake Cleaner or lacquer thinner) and a paint brush 2) The air side of you aftercooler is also probably a mess–When was the last time the aftercooler was serviced on the bench per my …

      Last Post by: Tony Athens posted: 8 years ago

    • removing turbo and exhaust riser 1 2

      This topic has 26 replies, has 6 voices, and was last updated byRob Schepis 8 years ago

      November 7, 2016 at 9:13 pm 17 year old boat, exhaust riser is pitted I’m told. The port side has been replaced. Also told my turbo needs looked at. It seeps a little oil at high rpms. So I’m wondering how tough it is to remove these 2 things. Things to do to prepare for removal. I’ve read some nuts/bolts may be stuck so once off I may need to cut them? Any tips and advice is appreciated.  

      Started by: Dalton in: Cummins Marine Engines

      26 Replies
      November 30, 2016 at 4:51 pm Yes, use an anti-sieze Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

    • SMX Displays – I'm excited!

      This topic has 10 replies, has 4 voices, and was last updated byCorey Schmidt 8 years ago

      November 17, 2016 at 6:25 pm Well, here we are, on a new forum! To welcome it in, I’ll post this bit of news, I finally have my new displays fitted up along with the NMEA connect option! My engines are mechanical B’s, so to have the digital configurable display options is very neat. So pleased I didn’t have to alter the dash layout (this is a repower/rebuild project) to have the factory Cummins analogue display panels fit in the dash area. These SMX displa…

      Started by: Woo in: Instrumentation & Electronics

      10 Replies
      November 30, 2016 at 8:56 am Darrell, the short DigitalView harness connects to the standard 8-pin molded extension harness that should already be run from your engine up to the dash area so no new harnessing should have to be run… see the picture below: Corey Schmidt | VP, Operations | Seaboard Marine, Inc.

      Last Post by: Corey Schmidt posted: 8 years ago

    • SMX Raw Water Pump

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

      November 29, 2016 at 2:28 pm I have had the SMX raw water pumps installed on my 6bta -370 for about 5-6 years now. At what point should I think about replacing the cam, seal and bearings? I have replaced the impeller once and will do it again this year. Although last time after 2.5 years they still looked like new.

      Started by: Thomas in: Cummins Marine Engines

      7 Replies
      November 30, 2016 at 7:02 am Thomas wrote: ..Do you carry a spare SMX pump onboard with you? No, I don’t, just 2 spare impellers/o-rings and a puller   Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

    • random starting

      This topic has 6 replies, has 5 voices, and was last updated byJoe Witt 8 years ago

      November 27, 2016 at 11:25 am My boat is a 1999 with 6BTAs and new batteries. It’s done this since i bought the boat (3-4 months ago) and the survey mentioned nothing about it. When I turn the key the warning buzzer goes off, gauges activated, etc but then when I goto start the engines nothing. I turn the key off and do it again and they start. Both engines do this. Its really random also, sometimes they start first try and sometimes it takes 3 tries. When this happens…

      Started by: Dalton in: General Discussion

      6 Replies
      November 30, 2016 at 6:58 am I only had issues with one motor. I changed it out to a higher amperage switch and it works fine ever since.

      Last Post by: Joe Witt posted: 8 years ago

    • A few more questions from a cummins newbe

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

      November 28, 2016 at 7:19 pm First off big thanks Tony. Now for the questions. As for removing the coolers off the boat is there any benefit if I can get both the cores out with them still attached to the motor? As for both I mean after cooler and heat exchanger. The blue coolant is the best coolant for the motor or is there something better? Both motors run at 170 degrees at cruising RPM 2200. This seems cool to me but I am used to truck engines. Motors are 2006 QSC 540hp.…

      Started by: George Forrer in: Cummins Marine Engines

      3 Replies
      November 29, 2016 at 7:37 am All “O” rings should be replaced, all heavily greased.. There are no gaskets #4: Cummins QSC Aftercooler O-Ring Kit Tony   Seaboard Founder & President

      Last Post by: Tony Athens posted: 8 years ago

    • Looking for Caterpillar technician in Marina del Rey area (not for me)

      This topic has 2 replies, has 2 voices, and was last updated byDavid R Flamer 8 years ago

      November 27, 2016 at 4:09 pm Group: I have a friend that has C7 Cats in his pleasure vessel.   He is having a few issues, which is of course unpleasant.  However, the most unpleasant component is that he is, I believe, receiving poor service from the mechanics he has chosen.  He is new to all of this and really does not know any better. I do try to help him, but I am no expert.  My experience is limited to my time with my QSB Cummins and what I have learned from this (and p…

      Started by: David R Flamer in: All Other Marine Diesels

      2 Replies
      November 28, 2016 at 2:17 pm Tony Thank  you.  I did not know Erith worked on Cats.  Erith did the sea trial on Tax Break after his dad did a fluid change and cooler service. That was going on at the time when the shop was getting moved. He got married didn’t he? Thanks again Tony.

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

    • Question on Starting, and some observations

      This topic has 3 replies, has 2 voices, and was last updated byRob Schepis 8 years ago

      November 27, 2016 at 10:11 am Hello – We took our boat to the fuel dock today, and had an interesting experience during start up.  The boat had not been run in about a month.  The Port engine had to spin for about 15 seconds before it would fire.  That is a first for this boat.  Starboard fired right up.  Engines are 6cta 400 hp with nippon denso pumps.  The only thing different is that I had been using the lift pump priming handle on Port just to get a feel for it inc…

      Started by: james in: Cummins Marine Engines

      3 Replies
      November 28, 2016 at 5:49 am If the return line has a dip tube then it remains submerged in the fuel tank.  If the return line is submerged air cannot enter the system via a fuel drain back due to a weep in a check valve in the fuel system. Rob "Luck is the residue of good design."

      Last Post by: Rob Schepis posted: 8 years ago

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