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Thread: new guy looking for ideas

  1. #61
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    Re: new guy looking for ideas

    Hey Corky,
    Thanks for the input! The terrain down here is mostly sand, mixed with occasional oyster-beds and gators, so I'll just run it as-is, see how it works. I'm just finishing up the dings in the sides, repairing the glass on the edges under the t-rails where the rivets all either ripped through the material or expanded the holes so much the T-rails were detached. Next are the new stringers, using 1x4 spruce, some primer, & finally some epoxy paint. Then I get to the rigging! hope I can get it back out on the water quick when I actually swap hulls. There's still some trout in our area, and the wife really wants to try flounder gigging at night!
    Last edited by 3cells; 04-22-2018 at 05:31 AM.

  2. #62
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    Re: new guy looking for ideas

    latest progress,
    holes repaired, gussets reinforced, stringers replaced, hull stripped and refinished, new transom rail, new anchor u-bolt up front, & rebuilt the standing deck, with scuppers. just need to recoat the inside. Had to stop for a couple months, as our band tours till Sept. when I hope to have a new prop, & build the rigging, Much as I hate working fiberglass, this has really been gratifying!

    P.S. Almost forgot, new motor, Generac 32 HP V- twin, thanks to a tip from yamahauler!! Going direct drive, will see how she runs, keep you all posted when I get back in Sept!!
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    Last edited by 3cells; 07-27-2018 at 05:17 AM.

  3. #63
    Member yamahaulerG1's Avatar
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    Re: new guy looking for ideas

    Looks good and light weight. I likeThe way you did the front deck so the water will go out the side instead of in the boat.

  4. #64
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    Re: new guy looking for ideas

    yeah, with as little flotation (none) as these things have, I want every advantage I can get! I also added some poly non skid granules to the finish on the deck. I'm thinking of filling in the spaces between the stringers with expanding liquid flotation foam, then decking over with something light, but I want to run her first to see if it can handle the extra weight. Thanks again for the tip on the generator, wish I could be working on it now, but we're on the road till sept. we're up in Anchorage Alaska right now, close to barts neck of the woods, (kinda, if you have an aquaplane) Cheers!!
    Last edited by 3cells; 07-27-2018 at 06:21 PM.

  5. #65
    Super Moderator Corky's Avatar
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    Re: new guy looking for ideas

    Nice work. Looks great !!

    Aluminum .120 14' X 76" hull
    Teledyne 4a084-4 engine
    Circle S 1.69:1 reduction
    67" Whirlwind "Razor X" prop



  6. #66
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    Re: new guy looking for ideas

    It's been a while, life gets busy, projects get delayed, etc. etc. but here's the latest!
    I'm tired of making all this stuff out of steel, and watching it dissolve in a year from salt water. So, after some research, I bought an Arc Pig HF converter/stabilizer, & an Argon tank and regulator that enables my old Forney stick welder to do a passable imitation of a tig welder. Now, I'm on a learning curve to make passable imitations of Tig welds... It's definitely an art form, fortunately, I'm good with a grinder! I couldn't afford stainless, so the new rigging is schedule 40, 3/8" (ID) aluminum, which is comparable to 1/2" EMT, in size and strength, and is lighter. I'm loving being able to fab aluminum and stainless, here's a couple pictures. I'm giving up on the Rockwell JLO/ Cuyuna on the heavy fiberglass Jon-boat. I'll probably sell the hull, and make an aluminum build later on, to put the JLO on. I'm hoping the generac 992 will be able to get 2 of us and this rebuilt fiberglass air-boat hull on top of the water.
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    Last edited by 3cells; 05-12-2019 at 10:06 PM.

  7. #67
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    Re: new guy looking for ideas

    more of the rigging
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  8. #68
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    Re: new guy looking for ideas

    now I'm working on the motor, made some mounts out of SS bolts and old tire material, seems rock solid. Does anyone know how much of the factory shroud to leave on? I'm leaving the front with the fan/magneto cover in place, to utilize the forced air cooling to the heads, and thinking of maybe some scoops for the sides, as I'm going to be sitting directly in front of the motor, blocking airflow.
    I wonder if I'll need to change the main jets, since I've removed all the governor/regulator/circuit board stuff in favor of just the bare bones magneto ignition, and the start/on/off switch, I had to remove a solenoid that shut off/ controlled the fuel flow to the main jets.
    Also, any ideas on exhaust? The exhaust ports face the blade, so space is critical, I made a couple SS manifold flanges with 90 degree ells, and have a couple 12" straight thru mufflers,( more like the old glass packs) that I'm thinking of welding directly to the ells, pointing to the sides kind of like dragster straight pipes, does this motor need more back pressure than this? The mufflers have 0 resistance, minimal baffling
    Last edited by 3cells; 04-12-2019 at 06:11 AM.

  9. #69
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    Re: new guy looking for ideas

    also... been saving the coins for a prop, the guy I talked to at Comp. aircraft is steering me to a 4 blade 48" old style ultra prop. It seems kinda small. I know Yamahauler is using a 3 blade 52" on his direct drive generac 992. I'm basically doing the same setup, but on a heavier fiberglass hull, also direct drive. The generac tops out at 3600, so I hope I can do without the reduction, Any ideas on size and blade numbers?

  10. #70
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    Re: new guy looking for ideas

    redneck motor mount
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  11. #71
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    Re: new guy looking for ideas

    the old Forney with converter, works well for what I'm doing. The manual that comes with the Arc Pig is hilarious!
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  12. #72
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    Re: new guy looking for ideas

    This is the only original shroud I'm leaving on,(red part visible on front) I removed the wrap around pieces on the back/prop side for more exposure, less restriction. It also holds the choke and start switch, & keeps the magneto/fan protected. Unfortunately, it's directly behind my seat, with about 4" clearance. I'm concerned about airflow. The onboard fan was designed with stationary use in mind & I'm hoping it provides enough. I'm considering adding some discreet scoops on the sides, funneling air to the back/prop side of the heads.
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    Last edited by 3cells; 04-12-2019 at 01:26 PM.

  13. #73
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    Re: new guy looking for ideas

    Good work...That exhaust is close to the front of the prop in it's current form..Probably too close..Not too many choices on what can happen there...Either split them and route them away on each side or get that cross tube in closer to the engine which might generate some heat around the back of the heads...I've seen them done both ways..
    The small air deflectors might not be a bad idea to help redirect some airflow over the head's fins if you think that shroud isn't going to get it done...

    Aluminum .120 14' X 76" hull
    Teledyne 4a084-4 engine
    Circle S 1.69:1 reduction
    67" Whirlwind "Razor X" prop



  14. #74
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    Re: new guy looking for ideas

    Thanks for the comment corky! Funny you should mention split exhaust, I just finished fabricating 2 stainless elbow flanges to do just that! I have a couple straight tube type silencers, that I might weld directly to the ells, still trying to find out if the motor needs some back pressure, or if I can go that direct, any ideas? I also wonder if the end of the exhaust needs to extend beyond the blade tips if there's nearly a foot of space between. possible negative effect of heat or vapors? I'm going with an ultra prop carbon fiber, so it would seem to be impervious, but I don't know for sure, I should probably ask bob at comp aircraft, he's been really helpful.

  15. #75
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    Re: new guy looking for ideas

    more progress, getting the cage formed
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  16. #76
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    Re: new guy looking for ideas

    fake prop, for checking clearances
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  17. #77
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    Re: new guy looking for ideas

    3/4" expanded foam PVC for the seats, seat backs, and standing deck, I'm tired of wood and steel decomposing in salt water!
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