Great start! That bolt circle has some BEEF to it!
How to you plan to thread the belt housing to recive those alan head bolts?
sftull wrote:Yea its pretty beefy! To get the threads in the belt housing, I'll get the flange positioned where I want it and clamp the two together. Then I'll take a drill bushing and small drill bit and put a dimple in the belt housing where the hole for the threads needs to go. After I get all the dimples made, I'll drill the holes with my drill press and tap the holes.
What do y'all think about running a chain drive? I really like the belt idea, but designing a tensioner and the cost of the parts are really making me lean to chain drive. I can change sprockets pretty cheaply. If I wanted to change a pulley, it would be atleast $60+
If I run a chain, I can put an Enforcer Centrifugal clutch on it. http://www.heeters.com/kartclutches.shtml 6th clutch down. That clutch will hold up to 40hp and I can make it engage between 850 - 2400 rpm's. I would like to have an electric pto clutch but I think it will draw more energy than the little alternator can put out.
wow man that looks great. get it TIG welded. I see you're in rock hill and if you want some flawless tig welding done i got the guy for ya.
Here's your trim
http://www.cabelas.com/product/CMC-PT35 ... l+Products
A bit pricy. maybe you can use your mad machining skils and make something like it.
ok noticed you used your old outboard to layout where you wanted your prop to be...... you do understand that the props you run on motors like this are Surface piercing props. Correct trim is with part of the prop out of the water. Might want to rethink the length of your down tube. You want to be able to clear the prop clean out of the water/mud if you push down on the handle.
sftull wrote:Nothing has been tightened down, just fitting everything together.
Hey sftull, that is looking great. I have one suggestion, to look out for. Is the belt housing reinforced at all where the 2 eye bolts attach? I'm sure the bolts are strong enough, but the aluminum is pretty soft to take the weight of entire engine. You might find it will deform under use. It might just be easier to go ahead and weld a 2" wide by 1/4" thick strap across the box where each of those bolts attach, before you get it too far built up.