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Stepping up to Post 50

Discussion in 'Post Yacht' started by incoming, Jul 12, 2026.

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  1. Capt Ralph

    Capt Ralph Senior Member

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    Outstanding.
    Look forward to fall in luv with another Post.

    Post kids are cool!!
  2. incoming

    incoming Active Member

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    Cocoa Beach, FL
    Next up: 2-3 weeks of deferred engine maintenance c/o Ace marine diesel. Coolers, injectors, turbos etc. Also decision on whether to let the Westerbroke live a little longer or bury it. As much as I’d love to replace it now I think I’m going to see how the oil samples look after ~35 hours of running. Would be nice to put off that $30k spend until I’ve at least sold the 42. Plus I still need bow chocks, a bottom job, and some other yard stuff.
  3. Capt J

    Capt J Senior Member

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    If the Westerbroke runs fine, then just run it till it breaks, oil samples who cares....... Phazor makes the closest footprint to most Westerbrokes. I had a 50' Post customer put in a Kohler, but a brand new Kohler never ran right, always computer issues. Dealers could never get it sorted.
    incoming likes this.
  4. incoming

    incoming Active Member

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    There was a thread somewhere about someone mounting a genset on rails where they could unpin it and slide it left and right to get to the front of the engines easier. After spending yesterday and this morning squeezing through multiple times to get to the AC pumps that sounds really nice, and would allow me to look at northern lights and other units that might have a larger footprint.
  5. Capt Ralph

    Capt Ralph Senior Member

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    I have a little insight; I recall sodium in the Westerbroke oil.
    Usually not a good event and warning of things to come.
    I have always hated the alloy exhaust manifold/heat-exchanger.
    I never liked those lil Mitsubishi engines. The two together rattles my crippled backbones.

    The reef material test could be a good example; Drop any gen-set into the ocean. Come back a year later, what engine assembly is still solid vs dissolved? You will not find the Westerbroke assembly.

    Yep, run it until it dies and then wait a while for the replacement to come in, or order its replacement now with scheduled down time replacement.

    Having fun with Shakespeare; To replace or not replace quickly, these are the questions.
    Weather it be smarter to replace now or later?

    Ah, but here is the RUB; That fraking Westerbroke could last, or lock up tomorrow, The new owner (Incoming) really has no history other than during the ships delivery trip.
    We await those oil lab reports.


    On the other hand; a year later+, were still in an ammonia broadcasting contest with NorthernLights. A 20kw end blew up 10 minuted past warranty, a new end blew up and everything connected to it a year later. Had the first end rewound and it has been running fine.
    NL denies both claims.
    Their failed replacement end is going thru autopsy now in S FL.

    As much as I luv NL, I may have some reservations on there warranty support.
    But I do luv the Shibaura engine they use.
    Last edited: Aug 15, 2026
  6. incoming

    incoming Active Member

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    Hmm maybe the phasor is worth a look after all. At least to save a little money on the front end
  7. incoming

    incoming Active Member

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    Location:
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    Nightmare scenario is the generator quits on the way to the Bahamas. This 50 is really not setup to be without AC power. Our 42 was great because the inverter would power the fridge and a few outlets for 24 hours+, even longer with good sun on the solar panels, and it had a backup 12v freshwater pump. Perfect for a quiet day of anchoring or fishing without the genset, or spending a quiet night on the hook when it’s cool enough to not need AC. If I lose the genset on the 50, I only have a 8-10 hours until smelly bait and lumpy milk.

    But I’ll probably risk it for a while and prioritize some of the other big expenses.
  8. Capt Ralph

    Capt Ralph Senior Member

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    Your 24V now?
    I have a simple 24v inverter I can donate to the cause.

    Have the oil samples been sent yet on the gen-set and mains?
    After your delivery run, perfect samples to submit.
  9. incoming

    incoming Active Member

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    New oil samples to be pulled this week.

    The boat is 12V only, but if I added an inverter I’d probably want to do a dedicated bank
  10. DOCKMASTER

    DOCKMASTER Senior Member

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    If you lack confidence in your Gen but prefer not to replace it now, you can always carry a portable Gen in case your Westerbroke dies on a trip. A little 5k Predator from Harbor Freight would be pretty cheap insurance. It would keep your reefer and bait freezer going and a few other small things. Just get a 30-50 adapter and plug into your shore power. I think you have to do the neutral/ground conversion but that’s easy.
  11. Lunderic

    Lunderic Member

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    Location:
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    I went with NL 20kw to replace an old Onan MDL4 20kw. I was thinking Phasor but when getting quotes (including sound shield and remote gauge panel) the prices were the same and I could get the NL quicker. This is the third I've bought over the years (different boats) and they've been flawless for me. Just check whatever you buy that it fits through doorway and into the space without disassembly.
  12. Capt Ralph

    Capt Ralph Senior Member

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    In an originally Hatt 65 (galley up), I had to tear down the MD4 to a short-block to get it out.
    The new NL12 & 20 was tore-down in pieces (parts?) and I re-assembled in the bilge with the newer hush boxes.
    A stage was made under the for deck hatch for all to slide for/aft to the generator hatch and lower bilge.

    On another Hatt, galley down, we added a NL 12 and tore it down to pieces and man-handled it in place.

    But, it can be done.
    For warranty and the non-shop tech. I have 3 NL shops around me that know me well. I just scheduled the next available shop to inspect the install. All good? All warranty good....

    These projects are probably the reasons I'm 2+ inches shorter than 15 years ago..
    Just find younger/stronger/less-smarter backs to help..
    If needed, I can help (manage & watch).
    Last edited: Aug 16, 2026
  13. Lunderic

    Lunderic Member

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    Location:
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    Haha...You were way more ambitious than me. I measured and only NL or Phasor would fit so those were the choices. Only made it by an inch or so but it went in intact. The MDL4 however was already in pieces because I was going to fix it but I'm told old to track down used parts or having stuff custom made to keep it running...it was excellent reef material. On a side note, the NL 20KW is much quieter and smoother than the Onan and mostly only hear exhaust water when running. A new Onan was almost 5 inches wider.
  14. Capt Ralph

    Capt Ralph Senior Member

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    The hatch we had to work with was close to 20 x 22 or close to that. Just barely got the sound box tray and panels down there.
    Yes, for some reason the later OhNo's were wider than the later NL's. Considering the same Shibaura engine.
    Even the Kubota, Mitsubishi and first wife are quieter than the MD4s..