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    • Cummins Marine Forum Topics
    • 6BT transmission oil coolant anode

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

      October 19, 2022 at 8:15 pm Hi there, Quick question. In the attached photo of the oil heat exchanger where is the anode. The small plug in the lower left end seems very small. many thanks Nigel

      Started by: Nigel Kittow in: Marine Transmissions

      1 Reply
      October 21, 2022 at 3:16 am On the Cummins factory supplied transmission oil cooler shown here (6BT 5.9), there is NO real provision for an anode.Ā  The small 1/8″ NPT port / plug was put there to drain the coolant/seawater , or maybe for a seawater feed to a shaft log?.. Maybe we should ask, what were they thinking?    

      Last Post by: Tony Athens posted: 1 year ago

    • Probable fuel pump issues

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

      April 6, 2022 at 3:28 pm Hi, appreciate any advice I can get. I am in Bew Zealand unable to return to my home in Vanuatu due to border closure. I have been locked out for two years. Over that time a friend has been looking after my boat,Caribbean 32 with twin Ā 6BTs, 1996 5000 hours. ge has been running them for half an hour once a month but recently the Stb engine will not fire. There is no water in the fuel filter bowl and the port engine runs fine from common tank. th…

      Started by: Nigel Kittow in: Cummins Marine Engines

      3 Replies
      April 7, 2022 at 6:52 pm I do not know to say what I told you to do differently . At least I thought is was clear… IMO, do as I said &Ā  don’t re-think what I am telling you what needs to be done. Ā  Ā  Ā 

      Last Post by: Tony Athens posted: 2 years ago

    • ZF 63A transmission fluid change interval

      This topic has 2 replies, has 3 voices, and was last updated byBill Fuller 4 years ago

      February 2, 2020 at 1:43 am Simple query but have struggled to find the answer. Running twin 6BTs with ZF 63As. About 300hours per annum mostly at 1300rpm. How often should I replace the transmission fluid and filter? Appreciate your advice once again. Tx NIgel

      Started by: Nigel Kittow in: Marine Transmissions

      2 Replies
      February 2, 2020 at 2:53 pm I have Hurth 630As, same as ZF63A. I change my fluid every year whether 200 hours or 600 hours, and the filter every 4 or 5 years. My fluid is always perfectly clean when it is removed. If it were dirty I might change the filter a little more often. Also when I do change filters they are always fairly clean. I am a big proponent of once a year regardless of hours. I have been following this protocol for 20 years and 6,600+ hours with no trans…

      Last Post by: Bill Fuller posted: 4 years ago

    • Low pressure in ZF 63A

      This topic has 6 replies, has 3 voices, and was last updated byNigel Kittow 5 years ago

      August 18, 2018 at 5:02 pm Hi all, I would really appreciate some advice on a new problem. I have a Caribbean (Bertram) 32 with twin 6BT and ZF 63A transmissions. Several months ago I had a shaft seal replaced on the port gearbox, replacing the fluid with Shell Spirax ATF. The boat hasnā€™t been used since then until yesterday. The transmission pressure was low and flickering but it would go in to both forward and reverse ok though I suspect at times I had some slippage.. T…

      Started by: Nigel Kittow in: Marine Transmissions

      6 Replies
      August 26, 2018 at 4:44 am I see you have a VDO transmission sender listed as 28 bar/400psi. Would this be a suitable replacement for a 25 bar 360 psi VDO sender in the ZF 63a of mine? Thanks

      Last Post by: Nigel Kittow posted: 5 years ago

    • Turbo jamming

      This topic has 14 replies, has 3 voices, and was last updated byNigel Kittow 6 years ago

      November 11, 2017 at 9:29 pm Hi all. First post and looking fir some help. I live in Vanuatu where specialist marine services and advice are thin on the ground. I have twin 1996 6BT 210 in Caribbean 32 with 5000 hours running Holse H1C turbos.. Around 18 months ago Stb engine started pouring out black smoke and had hole in the core assembly. To cut a long story short replaced the exhaust housing and core with new genuine Holset parts and was fine for 9 months. After not run…

      Started by: Nigel Kittow in: Cummins Marine Engines

      14 Replies
      November 18, 2017 at 2:34 pm Decided to wait before pulling the turbo as the spare elbow was not in good shape and the turbo is currently spinning freely. I need to use the boat this week too. There is little fall in the elbow So easy to imagine how some water could get back into turbo. The distance from the top of the flange to the boat floor is 210mm so allowing clearance I guess we have about 150mm of available rise. I have attached a drawing for your comments. It would …

      Last Post by: Nigel Kittow posted: 6 years ago

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Viewing 5 topics - 1 through 5 (of 5 total)