This forum contains 42 topics and 217 replies, and was last updated by  Tony Athens 22 hours ago.

Viewing 20 topics - 1 through 20 (of 42 total)
    • Cummins Marine Forum Topics
    • Closest current model match to ZF Marine model IRM280PL

      This topic has 3 replies, has 4 voices, and was last updated by Tony Athens 22 hours ago

      April 17, 2018 at 12:48 pm What is the closest ZF Transmission model to a 1999 ZF Marine model IRM280PL transmission? I am interested in what posted tips and suggestions would be applicable. In particular, the comments about measuring the transmission oil level. My transmission OM states to measure the transmission oil level when the engine is running and in neutral and idle speed. Once the dipstick is removed, oil spurts out aggressively from the opening. I think th…

      Started by:  Mark Kiehl


      3 Replies
      Reply #3 April 18, 2018 at 5:46 am Luke, ZF changed their Gear ID nomenclature about 10 years ago.. Your Model numbed is now called a ZF 280-1. There are also some physical internal & external changes, but if something did happened to yours, the change out is easy.. As to oil–A quality SAE HD 30 W meets the spec. Some 15W-40 also meet the spec. Oil level & checking–The manual is quite confusing on and if you ask an employee at ZF, you will not get a solid an…

      Last Post by:  Tony Athens posted: 22 hours ago

    • ZF Marine IRM280PL gear rattle / chatter

      This topic has 0 replies, has 1 voices, and was last updated by Mark Kiehl 1 day ago

      April 17, 2018 at 12:34 pm I have a ZE Marine model IRM280PL transmission coupled to a Cummins 6BTA5.9M3 330 hp engine in my 1999 Nordic Tug 37 with currently just over 3000 hours on them. Ever since I purchased the boat at 2010 hours, I heard the gear rattle/chatter when at idle speed and the transmission in gear (only at that time). A slight increase in engine speed would eliminate the rattle/chatter (similar result to what was posted on your website). Last year I ch…

      Started by:  Mark Kiehl


      0 Replies
      Reply #0 April 17, 2018 at 12:34 pm I have a ZE Marine model IRM280PL transmission coupled to a Cummins 6BTA5.9M3 330 hp engine in my 1999 Nordic Tug 37 with currently just over 3000 hours on them. Ever since I purchased the boat at 2010 hours, I heard the gear rattle/chatter when at idle speed and the transmission in gear (only at that time). A slight increase in engine speed would eliminate the rattle/chatter (similar result to what was posted on your website). Last year I ch…

      Last Post by:  Mark Kiehl posted: 1 day ago

    • ZF 220A transmission pressure

      This topic has 2 replies, has 3 voices, and was last updated by Corey Schmidt 1 week ago

      April 5, 2018 at 3:51 pm Hello all, My transmission gage on my ZF 220A only reads when the trans is shifted into reverse. The starboard trans works in forward perfect. I don’t see another port to install the sender into. I replaced the sender thinking it may be the issue the the same problem is still occuring. Thanks Joe

      Started by:  Joe


      2 Replies
      Reply #2 April 5, 2018 at 8:57 pm Have you seen the following article? ZF 220A or 220V Pressure and Temperature Sender or Switch Locations Corey Schmidt VP, Operations Seaboard Marine, Inc.

      Last Post by:  Corey Schmidt posted: 1 week ago

    • Opinions on gear/engine match

      This topic has 9 replies, has 2 voices, and was last updated by David Wesner 4 weeks ago

      November 5, 2017 at 5:14 pm Just bought a workboat with an older JWAC 6BTA, 250. It has a velvet drive 72C gear, can I expect issues down the road and what would a Heavy Duty replacement gear option be. Presently have a drive saver in line, so there is an 1.5″ or so extra length available if needed. David

      Started by:  David Wesner


      9 Replies
      Reply #9 March 20, 2018 at 7:18 am 10-4

      Last Post by:  David Wesner posted: 4 weeks ago

    • TWIN DISC PRESSURES AND DARK FLUID

      This topic has 9 replies, has 5 voices, and was last updated by Tony Athens 1 month ago

      February 27, 2018 at 6:54 pm Ever since the new engines (QSB6.7) and trans package MG5065SC was installed. The port has a 15 psi lower pressure at idle than the starboard but that changes when you are in gear and the port is about 50 psi higher at full throttle. Twin Disc (Awful customer service) was never able to tell me why and thought perhaps the numbers are bogus. They are both hooked up the same. All the readings on the vessel view are very close or the same for ev…

      Started by:  Roy Beasley


      9 Replies
      Reply #9 March 5, 2018 at 6:13 pm So for sure, you are using what they recommend.. I usually see SAE 30 but that is not of any real concern anyway.. Here is what I think.. During the first couple 100 hours of use, for some reason or another, the one gear went thru a period to where the clutches slipped some at times and darkened the oil..Don’t know why.. When you changed it, I’d guess 20% of the old oil was still in the system so it added some color to the new oil.…

      Last Post by:  Tony Athens posted: 1 month ago

    • ZF 325 -1A low gear oil pressure

      This topic has 2 replies, has 2 voices, and was last updated by a_schmitt 2 months ago

      January 19, 2018 at 2:28 pm Hello and thank you for any help with my problem. First post on the forum. I have a new to me 46 foot Bertram sport fish that was completely redone in 2011/12. Re-powered with QSM11 reman’s with ZF 325–1 A transmissions. These are electric shift throttles and trans run by a Gleninning system with trolling valves. Gear pressure is low on starboard trans running about 100 psi, consistent in neutral or in gear. Have not noticed a performa…

      Started by:  a_schmitt


      2 Replies
      Reply #2 January 26, 2018 at 3:39 am Well I’m a little embarrassed, at least I don’t have a gear problem. I discovered that this boat has two different transmission controllers. The starboard gear has a EB 30 controller, port has the EB 31 controller. The low pressure on the starboard gear led me to believe that I had a transmission problem. The EB 30 controller does not show full operating pressure until put in gear and given some rpm. The EB 31 controller shows full oper…

      Last Post by:  a_schmitt posted: 2 months ago

    • Shift delay

      This topic has 4 replies, has 3 voices, and was last updated by Philip 3 months ago

      December 21, 2017 at 6:42 pm My ZF285A transmission has a shift delay programmable through the Glendinning EEC3 control with a range of 0-2.5 seconds with a default of 1.0seconds. Nothing wrong with the transmissions. Things that make me go hmmm… What is the purpose of this delay? Why would one be inclined to change from the default of 1.0seconds and what’s the reason 1.0 seconds is the default. Phil

      Started by:  Philip


      4 Replies
      Reply #4 January 4, 2018 at 8:57 pm Just to close the thread, I spoke with Rick at Glendinning. For those that have Glendinning controls, Rick is a wealth of knowledge and a true gentleman who solved this mystery. There are two delays, both designed as preventative measures. For those that have never driven electronic shift/throttles they are silky smooth and it’s easy to bump them in a moving boat. And yes there are friction adjustments for both detention and movement, but even…

      Last Post by:  Philip posted: 3 months ago

    • ZF 220a Drain Plug Thread Size

      This topic has 3 replies, has 3 voices, and was last updated by Rob Schepis 4 months ago

      November 22, 2017 at 4:31 pm Hello, Does anyone know what the thread size is for the oil drain plug on a ZF 220a gear box? Thanks, Pat

      Started by:  Patrick Presti


      3 Replies
      Reply #3 November 27, 2017 at 6:32 am Pat, Regarding the 220A, check out this topic .. Removing the Magnet / Screen Hex Rob "Luck is the residue of good design."

      Last Post by:  Rob Schepis posted: 4 months ago

    • Twin Disc – black rubber pieces in the engine room?

      This topic has 3 replies, has 4 voices, and was last updated by Tony Athens 5 months ago

      October 30, 2017 at 5:24 pm ENGINES = MAKE / MODEL – CUMMINS 6CTA8.3-M3, 450 HP – Age 2/23/00 (17.5 years) TRANSMISSION – 506A 1.75:1 TWIN DISC #P8413 I am noticing small black 1/8″ size pieces of black soft plastic. It almost looks like off a belt. It is coming from the vents on my Twin Disc transmissions. A few pieces on the stb. engine (find 3 – 5 pieces) and port more ( find 5 – 10) after each run of the engines. I wash and clean the en…

      Started by:  David


      3 Replies
      Reply #3 October 31, 2017 at 5:02 am You have a MG5061A, not a MG506A.. Most likely your torsional coupling is like the one in the picture.. This particular design does this all to often……… Once it starts “falling apart”, things progress quite rapidly……Only solution is to replace it of have it rebuilt (Centa has a “program”for this–under $300.. They will not sell you any of the parts… Depending on access, usually a…

      Last Post by:  Tony Athens posted: 5 months ago

    • Rebuild or Conversion

      This topic has 7 replies, has 2 voices, and was last updated by Tony Athens 5 months ago

      April 16, 2017 at 5:44 pm I have a failed MG-5075SC behind a 6BTA.  Considering a rebuild of the existing unit, however am also considering a conversion to a comparable ZF.   Any insights or recommendations?   Unit drives a Doen 105 jet and is 1:1 ratio.  One item that is driving the conversion question is the apparent damage to the Twin Disc – lots of metal in the oil and strainer following a low oil condition due to seal failure – may or may not be rebu…

      Started by:  David Erik Sneed


      7 Replies
      Reply #7 October 21, 2017 at 4:40 pm You don’t screw around.. You needed to get it done and you did.. Good for you.. Not that it matters now, but for the 5075 to fail at such early hours and then looking at the pics says volumes–The gear was installed with some type of interference on the input applying thrust pressure on the gears input shaft–Not a fault of the gear–A Lousy mechanic put it together.. Anyway, seems all is good now.. Tony Tony Athens Seabo…

      Last Post by:  Tony Athens posted: 5 months ago

    • TD 5065 Trans

      This topic has 9 replies, has 2 voices, and was last updated by Anthoni Lightbourne 6 months ago

      April 25, 2017 at 6:48 pm Hi everyone. Every year I’m having to change these damper plates. I’ve come to the conclusion that these gears are too light for my application on a QSB 5.9 with max RPM 2650 on my boat. Are there a heavier duty plates available or should i have to upgrade to a heavier duyy trans like the 5075? Attached is a pic of my recent change of plate. 1.72:1 reduction How do the ZF boxes compare to the TD? Attachments:You must be logged in to …

      Started by:  Anthoni Lightbourne


      9 Replies
      Reply #9 October 13, 2017 at 6:50 am Hello Tony. Thanks very much. Secured funding with management. Where can I purchase the CF-R 178 series coupling for my Cummins QSB 5.9? We are ready to purchase and install and I would like to call you and have a chat. Thanks Anthoni

      Last Post by:  Anthoni Lightbourne posted: 6 months ago

    • Transmission chatter at idle

      This topic has 1 reply, has 2 voices, and was last updated by Rob Schepis 6 months ago

      October 10, 2017 at 2:47 pm I have boat with two Iveco AiIfo Turbo Diesel engines 8061SRM30.10 and ZF IRM220A transmissions. Starboard engine and transmission run smooth, coupling between engine and transmission is Vulkan Torfles KT3. Poert size features Vulkan coupling that is actually just rubber disc between two mating parts. This engine and transmission chatters at idle. I asked every one, ZF, Iveco, marine places and no one knew why chatter occurs. I increased idle, c…

      Started by:  zlatko salihbegoivc


      1 Replies
      Reply #1 October 12, 2017 at 5:46 pm Cool looking boat. Custom? Aluminum? Rob "Luck is the residue of good design."

      Last Post by:  Rob Schepis posted: 6 months ago

    • Twin Disk 5050SC temp and pressure senders

      This topic has 1 reply, has 2 voices, and was last updated by Tony Athens 6 months ago

      October 6, 2017 at 8:39 am My boat has a Twin Disk transmission 5050SC connected to a Cummins 6BTA 5.9 370HP engine. The instruments harness has wires for a transmission pressure and temperature senders but the senders were never installed. Does anyone know what temperature and pressure sensors should be installed and where they are connected to the transmission? The information will be connected to a NEMA2000 analog to digital converter for display on a multifunction dis…

      Started by:  Walter Schwab


      1 Replies
      Reply #1 October 6, 2017 at 5:11 pm Walter, You will not like the answer I am going to offer you.. I have nothing in my data base to refer to on that Twin Disc Model.. As to Twin Disc support–What you have found out is why I try and stay away.. Very poor support overall… I wish I had a better answer.. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Just took a chance with GOOGLE.. I found this bulletin…. This is a Gear that will have full Gear pressure on the oil line going to &a…

      Last Post by:  Tony Athens posted: 6 months ago

    • oil change for zf-85-iv 2.0

      This topic has 12 replies, has 4 voices, and was last updated by Bill Fuller 6 months ago

      September 29, 2017 at 12:34 pm have dual 2007 zf-85-iv-2.0 ( with dual qsb 5.9 425) just got the baot this year in jan so im preparing for winter layup and want to change oil on the zf … can someone tell me the type of oil and how much i need to get i have a reverso system so i figure pull out old with reverso and put in right in tranny …. sound good? thanks guys

      Started by:  raymond gonzalez


      12 Replies
      Reply #12 October 6, 2017 at 8:04 am One other thing. I think that fresh ATF helps keep the seals in good condition. Another reason too change once a year. Bill F.

      Last Post by:  Bill Fuller posted: 6 months ago

    • ZF 280A Trolling Valve adjustment? 1 2

      This topic has 22 replies, has 3 voices, and was last updated by Shawn Keulen 7 months ago

      August 16, 2017 at 6:47 pm Have a ZF 280A with trolling valve that is operated by the standard t handle push pull cable. I do salmon trolling on Lake Michigan with the boat which is a 36 Tiara with C series Cummins. I can dead stop the boat with the control and get to about 1.8 knots easy with it, but no matter how easy or patient I am with the cable/control I can´t get much more speed out of it without it making a gear grinding noise or jumping out of troll mode. I gues…

      Started by:  Shawn Keulen


      22 Replies
      Reply #22 September 2, 2017 at 8:51 pm Sorry I did not know that and did not think of taking pictures. It was the trolling valve spring located behind the piston the is driven by the cam on the control arm. It had a crack about 1/8″ from the end on the piston side opposite of the valve. I measured the spring as a whole then stretched to match the length trolled on it for 12 hours today and night and day difference. Tony is it possible to purchase a spring from you? 36 Tiara Cum…

      Last Post by:  Shawn Keulen posted: 7 months ago

    • Transmission removal and replacement.

      This topic has 5 replies, has 3 voices, and was last updated by Dominic Garofolo 7 months ago

      August 24, 2017 at 5:24 am Hi all, The transmission went on the port engine of my 31′ Bertram, roughly 6 weeks ago and I have been unable to find anybody even interested in replacing it. The engine is a Cummins 4BTA (serial number 46043905), and the best I can tell the transmission is a Twin-Disc 5011A / 1.44:1. I am getting the transmission information from the starboard engine because the data plate on the port engine is missing. (see attached pictures). Also I am…

      Started by:  Dominic Garofolo


      5 Replies
      Reply #5 August 30, 2017 at 11:05 am First of all I would like to thank both of you for answering my question. Bill—-> That is a lot of good information, thank you! Now for the odd but good news: I went into the local Marine store here in Cape May to buy some penetrating oil, and ran into an old timer who asked me what I was using it for. I explained what had happened, and he said, “take off the mushroom cap and then try it”. Further he said it sounds like the …

      Last Post by:  Dominic Garofolo posted: 7 months ago

    • Vulcan coupling life

      This topic has 2 replies, has 2 voices, and was last updated by Luke Nelson 7 months ago

      August 26, 2017 at 10:30 pm Hi All, I just left a vessel that has developed a gear oil leak on the main input shaft as it is dripping out the drain on the flywheel housing. It is MG 5114a with 100 hours from rebuild, the gear box has other issues . I don’t trust it and it think it needs to come out fp. All that being said they are still working the vessel 12 hours a day and have a 750nm steam back in 2 weeks. With all the oil on the silicone vulcan coupling how lon…

      Started by:  Luke Nelson


      2 Replies
      Reply #2 August 29, 2017 at 3:56 pm Thanks Tony.

      Last Post by:  Luke Nelson posted: 7 months ago

    • ZF63A gear fluid change, stay with ATF or switch to 15-40 oil ?

      This topic has 4 replies, has 5 voices, and was last updated by Tony Athens 8 months ago

      August 15, 2017 at 7:09 am Hello All, I’m about to do a fluid/filter change on the ZF63A gear coupled to the 6BTA 370 in my lobster boat. There’s been lots of discussion on other forums on whether to run ATF in the 63A gear as listed by ZF……..or…..switch to 15-40 oil that is also approved by ZF in the 63A gear. The change from ATF to 15w-40w oil supposedly “quiets” the gear rattle and shift banging. Anyone have any thoughts or opi…

      Started by:  Bill Desmarais


      4 Replies
      Reply #4 August 19, 2017 at 6:29 pm Just within the last 6 months, “100% hands-on” direct experience with a ZF85IV that runs on the edge as to “duty cycle” and power input in commercial service (1500+ hrs per year) has shown superior shifting qualities and measurably lower oil temps (a solid 20 F drop) …………… We just installed his 3rd gear at 6000 hours and we hope to get an extra 1500+ out of this one running 15W-40R…

      Last Post by:  Tony Athens posted: 8 months ago

    • ZF 220A inspection

      This topic has 7 replies, has 3 voices, and was last updated by Bill Desmarais 8 months ago

      July 23, 2017 at 7:51 am I have a ZF gear on my 6bta 370 with about 3500 hours. I am not having any problems other than gear whine that has been there since I got the boat (1,000 hrs). I cannot afford mid season breakdowns and I am curious if it would be good to remove the transmission and have it inspected during my off season.

      Started by:  Tim Klassen


      7 Replies
      Reply #7 August 18, 2017 at 5:37 pm That’s a Tony question ? 25 Terry Jason down east, 370 6BTA 28 Henriques Sport Fish, twin Volvo 200 41 PA s

      Last Post by:  Bill Desmarais posted: 8 months ago

    • ZF 310 oil change interval?

      This topic has 3 replies, has 2 voices, and was last updated by Tony Athens 8 months ago

      July 24, 2017 at 1:03 pm I’m at 300 hours on my engine and transmission this year, on my way to 5-600 hours. What’s the frequency of change on the 310? Not having luck with ZF manuals on line.

      Started by:  Larry Backman


      3 Replies
      Reply #3 July 25, 2017 at 7:48 pm All the same….The 311 is also an older “no more made” but good ol’ ZF gear.. Tony Tony Athens Seaboard Founder Go here for the latest stuff we put together and share for all to see: https://www.sbmar.com/tonys-tips/

      Last Post by:  Tony Athens posted: 8 months ago

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