Great Lakes Angler Forum
 
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  1. #1
    Join Date
    Dec 2006
    Location
    Pipestone, Mn
    Posts
    2,584

    hydraulic trolling plate

    Here is the new trolling plate I am making for the boat. I know a lot of guys prefer bags, but I don't. Just seeing what you think.

    It is not finished just yet but when it is it will run off the lift hydraulics for the drive. Flip a switch to run the plate so there is only a power wire and switch to install it.

    There is a fail safe built into the hydro pump It only take 10-15 lbs of pressure to lift the plate by hand when you hit the bypass.

    (it needs to be cleaned up a little yet, and yes my floor is dirty in the shop, i know :) )

    [URL=http://s224.photobucket.com/albums/dd34/floorboy1/?action=view&current=100_0616.flv]
    http://i224.photobucket.com/albums/d...h_100_0616.jpg

    http://i224.photobucket.com/albums/d...1/100_0618.jpg

    http://i224.photobucket.com/albums/d...1/100_0621.jpg

    http://i224.photobucket.com/albums/d...1/100_0620.jpg

    http://i224.photobucket.com/albums/d...1/100_0619.jpg


    http://i224.photobucket.com/albums/d...rboy1/0008.jpg

    Rod's R&R
    LAKE MICH./WEST SIDE

  2. #2
    Join Date
    Jan 2008
    Location
    Straits of Mackinac
    Posts
    1,256

    RE: hydraulic trolling plate

    The plane that the plate is on in the retracted position looks very close to the plane of the cavitation plate. Hopefully, that doesn't affect your drive performance. I know the BeaverTrol plate had a little offset in it to raise it a few inches above that point so it didn't affect the drive or put stress on the mounts. That will be your biggest threat as I see it. If this works, it looks like an awesome job. Good luck.

  3. #3
    Join Date
    Aug 2008
    Location
    protecting your Great Lakes
    Posts
    1,015

    RE: hydraulic trolling plate

    That is an awesome job. It looks like the front part of the plate has good clearance when it is raised but maybe the back part would dig in? If it does maybe a small upward bend in the lower half of the plate would take care of the problem?

    Is it possible to drill a hole through the piston and put a small relief valve in the ram's piston? A little spring and ball idea. It would work as an extra safety release. But it might weep during the day and the plate would rise up. It could also be teed in on the hydraulic lines anywhere in the system.

  4. #4
    Join Date
    Dec 2006
    Location
    Pipestone, Mn
    Posts
    2,584

    RE: hydraulic trolling plate

    Thanks, I will look into the plane on the plate. My old plate was parallel to the cavitation plate and I had no issues, but I can see where it would be better to be up a little.
    I though about a bleed off valve or something in case I forgot to raise the plate when I take off, I opted to go with a throttle stop so I wouldn't be able to pin the throttle and hurt the drive. Just have to give my drawing to my machinist yet.


    http://i224.photobucket.com/albums/d...rboy1/0008.jpg

    Rod's R&R
    LAKE MICH./WEST SIDE

  5. #5
    Join Date
    Nov 2009
    Posts
    70

    RE: hydraulic trolling plate

    How much? I had a hydro-troll and it was a P.O.S. That looks much better. If your interested in building one for my merc 90, let me know.
    rustytbm@yahoo.com

  6. #6
    Join Date
    Dec 2006
    Location
    Pipestone, Mn
    Posts
    2,584

    RE: hydraulic trolling plate

    Lemme get the bugs worked out of this one first, then maybe we could figure one out for an outboard.

    http://i224.photobucket.com/albums/d...rboy1/0008.jpg

    Rod's R&R
    LAKE MICH./WEST SIDE

  7. #7
    Join Date
    Sep 2006
    Location
    Ellison Bay, WI
    Posts
    4,226

    RE: hydraulic trolling plate

    looks like you're on the right track. Let us know when you're ready to sell copies.

  8. #8
    Join Date
    Nov 2009
    Posts
    70

    RE: hydraulic trolling plate

    I am definetly interested when you get everything worked out. My 90 does good on the big pond, but I would like to get slower when inland for eyes. feel free to e-mail me. I don't trust anything on the market right now becuase of that hydro troll.

  9. #9
    Join Date
    Jun 2006
    Location
    De Pere WI
    Posts
    111

    RE: hydraulic trolling plate

    I would be worried about the plate being bent by the force of the water against it.

    My happy troller developed stress cracks because of this i think.

    Remember too, the angle stern drive needs to be considered when it is in the "trimmed out position." ie. runnin' in and out of port.

    My happy troller was designed to "failsafe" with the trolling plate bending up before ruining the mechanical part.

    I would be careful not to make the trolling plate too stiff. you might bend/break expensive stuff if you forget to put it up before hammering it. I know, never happens right?

    Otherwise, looks awesome.

  10. #10
    Join Date
    Aug 2008
    Location
    Algoma, WI
    Posts
    1,784

    RE: hydraulic trolling plate

    I think Floorboy was planning on putting some type of warning light on the dash to prevent this- he thought of pretty much all bad scenarios when he built this. Plus if he's anything like me upon takeoff- he'll try to trim the drive all the way in before throttling up which will red flag him when he hears the sound of the pump (it's pretty fast with that smaller cylinder than normal so it's louder). But then again- it's Floorboy and he'll likely snap off his entire cavitation plate.

    -Champ

  11. #11
    Join Date
    Aug 2008
    Location
    Algoma, WI
    Posts
    1,784

    RE: hydraulic trolling plate

    Scratch that earlier thought- he's using a throttle stop to prevent that.

    -Champ

  12. #12
    Join Date
    Dec 2006
    Location
    Pipestone, Mn
    Posts
    2,584

    RE: hydraulic trolling plate

    Nope never happens.. :P I bent my h.t. first trip out last year. Champ is right (pains me to admit it) I am having a throttle stop made.

    I am guessing there will be less stress on this than a happy troller because you can trim it up instead of throttling up when you need to speed up.
    I know his isn't a new idea but it seems the beaver trolls are early impossible to get a hold of anymore. And I think with them you need a seperate power source?

    http://i224.photobucket.com/albums/d...rboy1/0008.jpg

    Rod's R&R
    LAKE MICH./WEST SIDE

  13. #13
    Join Date
    Jan 2008
    Location
    Straits of Mackinac
    Posts
    1,256

    RE: hydraulic trolling plate

    Yeah, the BeaverTrol isn't made anymore. Irvin died a few years ago and the business with it. It used an independant hydraulic pump. One thing the BeaverTrol had was a hole in the middle of the plate to let some of the prop thrust through. Probably helped with helm control.

  14. #14
    Join Date
    Jan 2005
    Location
    Burbank, Illinois
    Posts
    1,148

    RE: hydraulic trolling plate

    Floorboy,

    In your fourth picture (rear shot) the plate is obviously not symetric because of the control arm being offset. Is that going to increase too much pressure to the right side when using?

    This is stainless steel?

    Frank
    www.wildsalmon.org

  15. #15
    Join Date
    Dec 2006
    Location
    Pipestone, Mn
    Posts
    2,584

    RE: hydraulic trolling plate

    It is aluminum..... as I said it is a prototype. The plate itself is centered on the prop. The mount itself is 1/2 inch heavy to one side. The cylinder is mounted about an inch and a half to the side. I haven't had a chance to run it yet but I plan on pushing it to the limit and see how it performs.

    One thing I am looking for if anybody has an inside scoop it bulk braided brake line that I could crimp the ends on it any length I need. My system only runs about 1600 lbs "bottomed out" if you have any contacts for that please p.m. me

    http://i224.photobucket.com/albums/d...rboy1/0008.jpg

    Rod's R&R
    LAKE MICH./WEST SIDE

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