r-31 cb

  1. H

    R31CB Generator removal

    I need to change the pan under my generator on my r-31 cb. It appears that there is not enough room to lift it and slide another pan in. If I have to remove the generator, do you have any suggestions? Looks like it was installed before the deck was.
  2. Y

    Groco flush kit adapter for 2108 RTCB ?

    Read previous threads on similar flush kit adapters for RT 31 ´s . Looking to place one on our 29RT for the lower Chesapeake Bay / Atlantic waters… we are fairly new owners (2025), boat was previously freshwater (Michigan) … question is the groco adapter best solution and how often to flush or...
    • Yolodin
    • Thread
    • maintenance r-29 cb r-31 cb r-43 cb
    • Replies: 3
    • Forum: Chat
  3. I

    Fresh Water Supply Line Size

    Can you please tell me the size of the blue and red pex water supply lines in my boat? Is this 15mm pipe or 1/2" pipe? And therefore what fittings (Watts or SeaTech or other) should I be using for replacement fittings? My goal is to change my fresh water pump and add an accumulator tank...
  4. Y

    Drive shaft recalls

    We have 2018RTCB and while on a long cruise in the ICW and Albemarle /Pamlico sound our shaft sheared off while running at 31-3200rpm . Engine only has 360 hrs and regularly maintain. Happened over July 4 week. Boat at repair yard in Oriental NC… Zimmerman marine … Is shaft a standard shaft or...
  5. H

    Alternator Trouble

    My 2014 R31 CB gave me a low battery warning this morning 25 miles offshore. The alternator seems to have failed. I was able to get to a mooring but I need to solve the problem. Can you help me diagnose the issue? My cell is 603-380-6000
  6. R

    Air conditioner doesn't work on genny

    2019 RT-31 LE I started up the genny just to "exercise it" as I hadn't used it for a while. I flipped on the air conditioner breakers at the salon panel but there was no power to it. However, the air conditioner worked on shore power. I opened the cockpit table seat compartment to check the...
  7. H

    Generator Removal

    Is it possible??? I need to do some rather extensive work....lots of rust in the unit and ....its dead as a door nail. I've narrowed the issue down to a 10 amp start control fuse but it is absolutely impossible to access while the unit is on-board. Has anyone else successfully removed theirs...
  8. R

    Gasket for air scoop

    I have a 2019 r-31 cb. The air scoop over the forward cabin is leaking. I have taken it apart to find that the flat, black gasket is deteriorated. Does anyone know where to get a replacement, or the manufacturer of the unit. Thanks in advance.
  9. M

    DC panel voltmeter

    Hey guys Question regarding the DC panel voltmeter. I currently have the boat plugged in on the hard. I stopped by to check on things the other day and noticed the dc panel voltmeter reading barely 11 volts. Thought it odd being plugged in. I tested the 2 battery banks with a multi meter and...
  10. Y

    Battery testing/ replacement

    Bought a 2018 29 RTCB last year. Previous owner replaced some house batteries in 8/23. Now noticing that I now need to turn on 1 and 2 banks and use parallel switch to start engine. Voltage after start is 13-14 . Is there a procedure for load testing house bank and engine start battery? Will...
    • Yolodin
    • Thread
    • maintenance r-29 cb r-31 cb
    • Replies: 5
    • Forum: Chat
  11. T

    Swim platform digs in

    Hi, I'm real close to a deal on a RT 31 CB and when we did a sea trial during a professional survey, the portside corner of the swim platform was digging into the water while underway, more so the higher the speed. It is a 2021 model and has a Seawise 2 stage manual dinghy lift with a Highfield...
  12. T

    Swim platform digs in

    Hi, I'm real close to a deal on a RT 31 CB and when we did a sea trial during a professional survey, the portside corner of the swim platform was digging into the water while underway, more so the higher the speed. It is a 2021 model and has a Seawise 2 stage manual dinghy lift with a Highfield...
  13. T

    Portside swim platform digs in

    Hi, I'm real close to a deal on a RT 31 CB and when we did a sea trial during a professional survey, the portside corner of the swim platform was digging into the water while underway, more so the higher the speed. It is a 2021 model and has a Seawise 2 stage manual dinghy lift with a Highfield...
  14. 33RPM

    CB or S for PNW liveaboard Ranger Tugs R-31?

    We are wondering if the S or the CB R-31 is better for a part time liveaboard in the PNW, including some summer months and some winter months. It sounds like the CB would clearly give us more space in good weather, maybe make docking easier, and let us see sunsets better in good weather. But...
    • 33RPM
    • Thread
    • r-31 cb r-31 s
    • Replies: 9
    • Forum: Chat
  15. Y

    2018 D4 300I engine flush intervals ?

    It’s my inaugural year of owning this 2018RTCB. Completed fluids maintenance on generator and engine. Live in southern Chesapeake Bay, question: how often to freshwater flush the D4,generator and where to buy /size flush caps for intake or dyi adapter. Thanks in advance. Ken - Folie á Deux
    • Yolodin
    • Thread
    • 2018 model year r-29 cb r-29 s r-31 cb r-31 s
    • Replies: 0
    • Forum: Chat
  16. Y

    Follow up on command bridge biminis

    Pre purchase research: I previously posted question on biminis for 2018 29 ft RTCB . Thank you Shane, who had outfitted with a 4 bow - 84” . My canvas guy ask about ‘ moment arm’ problems with either the 4 bows or 3 bows . Essentially the effect of the the top heavy Bimini on stability of boat...
    • Yolodin
    • Thread
    • canvas r-29 cb r-31 cb r-43 cb
    • Replies: 4
    • Forum: Chat
  17. Y

    Bimini preference for command bridge on 2018 29 RTCB

    Hello all , Our ‘Folie á Deux’2026 project includes a CB Bimini. So to help us decide , á preference survey. Canvas makers are suggesting 3 bow or 4 bow , collapsible and fold down Or collapsible and standup structure. Also 7.5 ft of coverage or 9 ft that (that mayinclude some shading of helm...
    • Yolodin
    • Thread
    • canvas r-29 cb r-31 cb r-43 cb
    • Replies: 1
    • Forum: Chat
  18. Y

    D4 - 300I replacement on engine zincs ?

    Have seen some YouTube on replacing zinc on D4-260 engine …is this the same on D4 300I ? If so how often and where … did not see this mentioned in 200 hr service or manual? Just finished my inaugural oil/ fuel and air filters changes on 2018 29RTCB D4-300 and next gen UMC-1 3.5( and changed...
  19. Y

    Leaky sensor drain plug

    Hello all. 2018RT CB - new owner - completed my first oil/ filter change on D4 3000. Also primary and secondary fuel filters . Problem water sensor on secondary doesn’t snug fit and I get leakage from drain plug ? Can it be fixed with teflon tape ? I didn’t see any O rings when replacing the...
  20. Y

    Replacement part for leaky water sensor?

    Hello all. 2018RT CB - new owner - completed my first oil/ filter change on D4 3000. Also primary and secondary fuel filters . Problem water sensor on secondary doesn’t snug fit and I get leakage from drain plug ? Can it be fixed with teflon tape ? I didn’t see any O rings when replacing the...

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