Vulkan Torsional Coupling

Discussion in 'Downeast Engine Room' started by Ohfishalee, May 10, 2019.

  1. Ohfishalee

    Ohfishalee Member

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    Hello All,

    I am in need of a contact email for sales and service (rather than the generic 'Contact Us' form).


    I am trying to get some immediate expert info on a Torflex coupling that may need replacing:

    1KT4110104.jpg

    Having looked at the picture - it now appears that some damage has occurred to coupling (metal missing from center of the drive.......also, lots of rubber in the coupling/bell housing when separated from the engine.
     
  2. Ohfishalee

    Ohfishalee Member

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    Got some answers already!!

    However, if someone has a lead on a source [US only] for this part, I would be most appreciative.

    I am joining this to a ZF IRM301p.2 transmission
     
    Last edited: May 10, 2019
  3. Ohfishalee

    Ohfishalee Member

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    Second question is, if you note the apparent chip out of the metal in the center of the picture, what are common causes of that? First comes to mind is throwing the boat in gear while past idle RPM!
    1KT4110104_LI.jpg
     
  4. ArchHibb

    ArchHibb Captain

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    Never heard of Vulcan Torkflex couplings before now. Visiting their website, 2 things are apparent: serious engineering, and serious applications (big ships, military) = a robust product. Damage looks to be from a point load impact to the shoulder. Could’ve come from when trans/coupler/bell housing was fit to engine - the input shaft hit the edge. How big is this thing and what’s it in?
     
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  5. Ohfishalee

    Ohfishalee Member

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    This is at the end of a Cummins 6cta 8.3 420hp.....ZF IRM301p.2

    The coupling is 11.5 inch radius I believe.
     
  6. Keelboater

    Keelboater Captain

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    Looks like a gear type coupling? Is this on a boat? That chip at the end of the shaft did not occur while running the engine. That point is not subject to any torsion. My guess is that's how the shaft cleaned up after machining - and the shaft was just long enough to meet your needs, or it was damaged prior to machining. I wouldn't worry about it.
     
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  7. Ohfishalee

    Ohfishalee Member

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    Yes on a boat.

    My problem now is finding a replacement or equivalent.
     
  8. jojobee

    jojobee Senior Member

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    Call Adam at Mack Boring. 908-964-0700 x258
     
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  9. Ohfishalee

    Ohfishalee Member

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    Thanks!!
     
  10. Ohfishalee

    Ohfishalee Member

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    Thanks for all of the info so far. I am still looking for this part as it is obviously not an on the shelf item but interested to know of a similar replacement drive/damper plate.


    Adam (amongst other people) is looking into it for me (FYI)
     

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