Welcome! Need support, you got it. Or share you ideas and experiences.
In Reply to: Re: homemade outboard posted by machnumber2 on April 09, 2003 at 22:29:55:
Hmm,, well as I am sure you have discovered,, A removable access pannle with fiberglass like that aint gonna work, The only way you gonna get back into that once sealed is with a hammer ;p The biggest drawback to using the ABS or even PVC. However,, You are where you are and must move forward from there.. If you want to know where your leaks are, just fill it with water outside of the barrel, and watch for where the water runs. I am betting on near the stuffing box myself. I would have tried to talk you out of the cast Idea were I around. If you were insistant on a accessable access panle, I probably would have tried to direct you to what can only be called, a "Rubber ace bandage" and a few hose clamps. ( car sized tube) the only other place water should come in is your beering mount bolts or the more oviouse access pan..From what I saw in the pictures, the bearing bolt did not look like it had enough, if any silicone around it .One other thing comes to mind,, I really dont like the plastic cap the stuffing box comes through, I think you would be better off cutting a round plywood plug for that and sealing that in place. My concern is the plastic hole will become oblong through use, and will most definitly leak.
remember, I build for keeps, My repairs are often the new strongest part of whatever the unit is
Using 2 nuts and a lock washer will work. I wish I could convince you to do it right and drill that puppy, But I wont keep after you about it ;p 2 nuts will work. My real problem with the hole thing really isnt prop spin off, although that is a real danger, my problem is that you are using friction preshure to "grip" and "rotate" the prop. Every single aoutboard I ever saw, did not rely on the grip of the nut to rotate the prop. That is something they use in making house fans. I am sure it will work as is, for awile.. The force pressing against the prop holding it in place is a constant. the forces trying to make the prop spin on the shaft are constant, every varying and sometimes increadably strong and will eventualy make the prop spin on the shaft in time unles you use some form of shear pin behind it. Ok,, I wontmention it again unles you ask hehe,
I am very sure it is much quieter with the exshaust piped underwater. Night and day even hehe.. Too bad you live way over there, Im looking at a 14 foot aluminume boat, with trailor and 4 hp motor for 500 bucks in our local buy it sell it swap it ragazine. Also having a few batteries for your drill I guess is suficient back up.. Might concider removing the pull start housing and rigging it so you could rap a rope around it old fashioned style if you had too. It isnt ENtirely unreasonable that the drill itself might fail, or be droped overboard. I supose a lanyard on it could prevent loss overboard.. Anyway.. a friend just called, we are going to take the motercycles for a ride,, Ill catch you later
havent worked on the project since the last post, been mostly concentrating on getting a boat. By the way your idea of filling the inside lower end with water is the most awesome idea, I was like "duh" why am I wrapping in garbage bags jeez. I will do that as soon as I get back to it. I am bidding a a boat, its sort of a hybrid inflatable-figerglass hull type thing. It comes with a 30 hp outboard that looks to be in good shape. take a look at the link and let me know what you think...
Well, that semi inflatable dosent look to bad. I am not sure I would pay that much for a inflatable ( almost 1500 now ) but then again, the motor itself is just about worth that alone so it ia probably a pretty good buy.Good Luck with the bidding.
Well I won the boat, $1775 on ebay. Way way way more than I wanted to spend, but I did comparables on it and it seems to be worth about that in this area. No work on the project yet. Ken did you get the carb and shaft problem figured out?
Unfortunetly, No, not yet. its running, just not running well.
Tested the boat today. It worked great I am very happy with it. My wife and I sat next to eachother in the front, I was suprised by how much space it had, we were comfy. The motor started right up and it was very powerful when I opened it up. I would say this thing tops off at about 40+ mph. Unfortuanately I do not think I will be able to test the homemade outboard on this boat, I will have to move the existing motor and dont want to mess with it. It was a fun project though. Photos below
Looks like you might be able to mount the prodject next to the main motor. it will work if it isnt centered, most trolling or backup motors often sit to the side of the main motor anyway
I looked at the rear and it does not look like there will be enough room for both motors. I can try to make the two square steel motor mount plates smaller then see if that helps. Or if it is easier, just take off the 30 hp motor and hook up the prototype.
That will kinda suck if you have to remove the 30 to test the prototype. But then again, it isnt that big of a deal unmounting the 30. I can see it now, You will use it once, prove to yourself it works, take a few pictures, then remount the 30 and never look back hehehe.
That will probably happen, not the way I envisioned it orgiginally. Just a thought, if I sent this thing to you, would you be interested in using/testing it, maybe making improvements? Its really a heap of bad welding and leaking lower end but I am curious if it would work.
Wonder what the shipping cost on that would be from California to Maine.
If you shiped it up I can test it, and maybe make a modification or 2. I am pretty certain it will work. From what I understand, the only real hurdle left is stopping the lower unit from leaking. Hmm, well, that and the starter rope,, I dont have a cordless drill anymore.
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