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Trim tab replacement

Discussion in 'Chris Craft Roamer Yacht' started by watjam, Dec 22, 2009.

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  1. watjam

    watjam New Member

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    We hail from Huron, Oh.
    The tabs on my 38 Regal (Alum) have been acting up, I see in alot of photos some people have replaced them with aftermarket tabs. But I feel that by eliminating the origionals I would be altering the "genuinness" (for lack of of a better word) - of the breed. Ive followed some threads on restoring them though and geez!....Those Bennett's are soundin' real fine!

    Any thoughts out there maybe from those that have performed the changeover, or perhaps reasons not to?

    Regards,
    WATJAM
  2. homer1958

    homer1958 Member

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    I would do it

    Problem with the facoty ones is that though innovative at the time, they are not large enough and cause friction which reduce speed. Also the screws can rust-out that hold them in.

    Bennet has a size that fits perfecty, plus you will get the benefit of much faster action and the feeling your hull is one foot longer.


    If you do it, please let me know what you think as you will have the comparison live.

    Did you know that Lincoln Continental power seat motors are what run your trim tabs?

    Also, less chance of ventilation in a following sea.

    Attached Files:

  3. Oneiros

    Oneiros Member

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    lulea Sweden the land of the midnightsun
    www.qlmarine.com/ql.asp Check procedures link
  4. wingless

    wingless Member

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    Homer, those tabs seem very wide to have only one actuator.

    It seems more likely that uneven forces would cause the tab to rack in the hinge than w/ two actuators.
  5. watjam

    watjam New Member

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    The Bennets look easy enough to install, but what do I do about the existing
    tabs and recessed tab pockets......is this going to require a welder?
    Can I simply remove the old tabs and leave the pocket as-is?

    Regards,

    Watjam
  6. Henning

    Henning Senior Member

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    You could, but I would suggest you use some underwater grade fairing filler like Red Hand or whatever to fill with.
  7. q240z

    q240z New Member

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    zsedr
    Unless there's something truly grand or aesthetically pleasing about the OE stuff, I see nothing wrong with upgrading to better, more modern equipment. The caveat, though, is if an upgrade introduces even the slightest hint of ghetto to the boat, it's a no-no. 20" wheels with spinners, for example, are out of the question. lol

    The original tabs on my boat were made of steel and bolted to the bottom using galvanized steel bolts. Fairing compound was used to fair the hinge at the leading edge, which creates the "tab pocket." No welding was involved. Since they're already faired to the hull (assuming the fairing compound hasn't been undermined by oxidation like mine was), you could just leave them in place, fully retracted, and put on Bennetts.

    If you choose to remove them, it's not a huge project to grind off the fairing compound, weld up the bolt and actuator holes, grind smooth, and epoxy barrier coat the whole mess.

    I'm still considering leaving the actuator holes open on mine and installing super bright LEDs in them for some underwater transom lighting. Whaddya think--too ghetto? lol
  8. watjam

    watjam New Member

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    Too funny - next will be "Dock feelers" - and fuzzy dice hanging from the wiper motor.
    Yeah, I'm gonna do it, and it'll probably be the Bennetts. Have looked at
    Lenco's - actually put a pair on my 59 28 wood Connie, but I only want to do this once. Havn't heard any complaints about the Bennetts. Kinda like their
    new switch with the position indicator built right in too.
    My memory is foggy on the exact depth of the pockets - they may be exactly like yours and fairing will be minimal.
    Thanks for the reply. We'll get her started when the Lake Erie snow machine settles down here, hopefully soon.

    Regards,
    Watjam
  9. q240z

    q240z New Member

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    zsedr
    HA! "Dock feelers" I can think of four yacht club members who really seriously need a set! lol

    The hinge/tabs on mine was made of 1/4 plate, and that's the exact thickness of the fairing compound. You can see the line of the fairing compound in the pic below. If you didn't want to mess with welding the bolt holes, which would also cook the bitumastic compound they coated the inside of my (and possibly your) hull with, you could also just bed round headed 1/4-20 galvanized bolts in the holes with 5200, then barrier coat and bottom paint them. It's something to consider...

    Looking at the transom of Tin Tonic, it's a totally different form than on the 46. I can't see how aftermarket trim tabs like that would work on mine, since the transom is stepped:

    [​IMG]
  10. watjam

    watjam New Member

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    :cool: My boat is the 38 alum regal - is that what the Tin - Tonic is also?
    If so then Bennetts will fit fine, no big "step" to worry about.
    Will definitly check it out next time I'm at the marina.
    Good idea with the bolts, maybe I can find some aluminum carriage heads.
    Would'nt want to put a "schizzle in my fazzizzle" by using steel.
    You dig?

    Regards,
    Watjam
  11. q240z

    q240z New Member

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    Well, the originals were galvanized steel and that's about as galvanically compatible a material to your hull as can be. Aluminum bolts would be fine if you can find them, but since they probably won't be the same alloy you're back to the galvanic compatibility question again. Then again, you can probably use any material you like just as long as they're well encapsulated in epoxy.

    But back to your original statement, how are your current tabs acting up? Maybe the fix is a lot easier and less expensive than replacement.
  12. watjam

    watjam New Member

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    :confused: Bought the boat this past July, ran it a few months - tabs were working - indicator was showing what appeared to be full tab movement on both.
    However, movement was extremely s l o w. Ultimately did not give the
    response I was expecting. ( I can **** near bury the bow on my 27 Custom Comet w/ 18" Bennetts). So I figured - bigger boat - slower response. Then I started hearing the same thing from other Chis Craft
    owners with these integral tabs - they just dont seem big enough.
    At the tail end of the boating season the stbd tab quit working entirely, so
    I have the dilemma - Fix origional and live with poor performance, or bite the bullet and .......you know the rest.
    It's also possible my "Star -Treck tab idicator" was giving me false readings even back when both tabs were still working and they were'nt getting full
    travel.
  13. roamertim

    roamertim Member

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    Same boat but not the same trim tabs

    Hello Wetjam,
    Learning lots from your threads! I have one trim tab motor not working and never had looked into a replacement motor yet. But, interesting to me is that we have the same boat in a 38 foot '69 roamer regal. We have very different trim tabs though. I would think mine are originals - this boat's only had 4 owners.
    These are very different from yours... (see attached)

    Attached Files:

  14. watjam

    watjam New Member

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    photo above I think is from the 41, Mine is same as yours Tim. I have decided to go one more summer with origionals and see if I can free them up with some grease. Plate is full! Bennet tabs and Seastar hydraulic steering will have to wait.
  15. homer1958

    homer1958 Member

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    Tabs

    The originals are too small and tooo slow. I have them, hate them. There are stainless screws going through the bottom that are not forever. I called Bennet.. they have a model that fits perfectly and will operate your boat much better. The originals are not big enough therfore causing too much friction... good idea but too small... the external ones will improve your ride as well making your boat feel one foot longer.
  16. watjam

    watjam New Member

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    one foot longer

    It's like Viagra for boats!:rolleyes:
  17. homer1958

    homer1958 Member

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    Shhhhhhh... don't use the "V" word!

    Man, there's a risk you may be bully-sited by an egalitarian soprano puritan shwabby as being self-righteous vacuflush chum from the Land of OZ or The Sailing capitol. Why review scholarly prose, when of course the pure can find truth with ever-present spin free media dogma sluffing on a couch, TV in gear popping bon bons? Live in fear of some forum fire and brimstone equality. If Ivory Soap is not pure, find the 1% impurity so the bar may sink.
    Last edited: Feb 13, 2010
  18. watjam

    watjam New Member

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    Homer gettin' some trim

    Sounds like you might be installing some new tabs, if you do-let us know the particulars. It is an eventuality that I'll be going down that same road, just not in the picture for this year.
    I like Bennets new rocker switch w/ the built in indicators, but a little pricey.
    I'll save thet project for next year.
  19. homer1958

    homer1958 Member

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    Not now..

    I have to though. Since Homer turns 23 by 31 big 4 blade wheels the boat sucks huge water and sometimes in a following sea it can ventilate a bit if the wave gaps. Normal Roamer would not do this but I have huge wheels with a 2.4 reduction so need the extra area over the transom too. The originals are just too small and cause too much friction. When you pull them you will have holes in the bottom of your boat you must re-weld as the originals are screwed in. The advantage I have though is I can load the boat up with people, water and fuel and it hardly changes the speed or torque.. just blasts thought it all. Pick-up is also tremendous. We top out at 36.5 adn had I gone to 2 to 1 gears probably would have hit 38... I like the midrange I have and most of the time only go about 25 mph where the wind is not too bad.

    Can you beleive that 46 Roamer with diesels, bridge and aliminium for 5Ok or BO.... my gosh that boat would cost well over a million dollars new... that one is a great one to pick up ti seems. I mean pick it up, hire a carpenter and redo it and re-paint it.. I jsut do not understand thse peoplewho spend 300k on a 30 foot floating piece of Sea Ray... Go figure?

    Point is people spend 4-500 k on a beach condo with rip-off condo fees... might as well get that Roamer for 45k and get going and park it at the beach I say.
  20. watjam

    watjam New Member

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    Just got my Bennett's today! Man their big, 12 x36! I will be installing them over winter.
    Still not sure if I want to weld the old tube hole or leave it and cap the top. That's the idea anyway, any ideas out there?