8HP vertical shaft convert to horizontal

#44
you know what they say "Quiters never win, and winners never quit. But people that never quit and never win are just loosers"
Not sure where youd fit in there at this point :doah:
 
#45
Im setting it aside until knowledge increases:doah:. Dont feel confident with bolts through the bottom but I still think its possible with bolts on the side, concerning the side with the flywheel though...:confused:,
MAYBE a steel strap can be bolted around the flywheel cover then to engine mount OR the bolts that would bolt the electric starter, perhaps steel straps then run down to engine mount?

Anyone have thoughts about these ideas?
 
#46
Weld the holes back up and take up gardening. Really, you are not thinking in a mechanic's way. Be far from it for me to say, don't do it. The grass needs mowing use another engine. 8 HP is a lot on any mini bike and it just was not designed to take that mush punishment. We will help you, first you must listen to reason...

TT :sadcrying4:
 
#47
Weld the holes back up and take up gardening. Really, you are not thinking in a mechanic's way. Be far from it for me to say, don't do it. The grass needs mowing use another engine. 8 HP is a lot on any mini bike and it just was not designed to take that mush punishment. We will help you, first you must listen to reason...

TT :sadcrying4:
gardening:no:

I like reasoning:glare:, Id like to understand the difference in a horizntal and vertical if vertical is horizontal. If they were placed side by side, excluding the dipper, how would the piston/rods compare?

and the camshaft, would they be the same in structure?

the flywheel, if the vertical spun horizontal what exactly would it do or not do differently? If it is not balanced like the horizontal fly wheel, what exactly causes the difference concerning how they are made?
 
#48
If you can afford a billet rod why not buy a honda clone or a pressure washer or tiller from a yard sale or pawn shop to cannabalize for the engine. It would cost less than the gallons of JB weld you will need to keep it from leaking oil now that you have drilled holes in the crankcase. sometimes you find the gigantic honda and honda clones on used power equipment too so you can save $$$ and maybe even get the real deal if you are lucky just make sure its a GX clone...

not that one of the belt driven cam/flimsy internal honda engines on some equipment is any worse than the Exxon Valdez engine you are building.

I can smell the metal on metal looking at the pics.
 
#51
!!!!dont give up!!!!

dont give up!!after i saw the guy that used the two stroke vertical on a go kart it made me start looking for big two stroke engines to put one on a mini! always think outside the box put remember you sometimes have to believe that the engineers that designed engines where way smarter than we even think we are.so do it but weld the holes up and use the vertical mounting holes and make a plate like the guy with the go-kart try another site i saw somewhere that go-kart guy actually showed the whole plate and project .hey i put a gx390 on a db30 and they said it would'nt fit then i left them in the dust,wheeliing away:thefinger:
 
#52
Use a gearbox

To change vertical to horizontial would be great! I agree with the post about the 90 degree gear box. If you could also gear it down at the same time the Jackshaft could be eliminated. Not sure for racing that any of this would work but for hill climbing it could work. (if you find the gear box cheap enough)
 
#53
good luck

Guys stop doubting him if he gets this to work all of you will look like idiots serisly guys havent u ever wonderd what would happen? plus its better for him to waste his money then ours
 
#55
ALSO.... if you just want to use the motor.. a V belt will let you go from vertical crank, then twist the belt 90 degrees and to a horizontal position on the wheel or whatever you are hooking it to... That or a transmission would be easiest way.. A 4 cycle engine though, if it was designed to work one way, it will blow up the other way. It requires oil to be where the oil flipper is at... Tip it the wrong way and it can't get oil..
 
#56
i watched this before i joined and laughed at it . it is very possible to take a bottom drive and turn it in to a side drive but, BUT the way this guy went about doing it,stupid realy stupid . the case would not handle it . now if you built a mounting plate that bolts to the original mount and turns it 90 much better . the oil problem is not all that big you take and set it up same as a side drive with a dipper . simple bolt on part , the next problem to solve would be how are you going to fill the oil the fill is now the drain plug .you would need to make some kind of oil fill set up .with pipe fittings you could bring the oil drain up to a level with the full line .
the carb you make a intake how many here have done that ??????? not so hard if every one here has done it . if you take a side and bottom drive motor apart and look part for part you will see that there is no real difference in the parts . some things are different yes but nothing that you couldn't work around .i had thought this out when i was a kid , and figured out how to get around the problems . i should build one like this just for the fun of it , maybe this summer ill get to it .and then we would have proof if it works or not.

minidragbike im going to call bull on the vertical flywheels are not balanced . if they weren't balanced then there would be some massive shake in the motor . and i know that the cranks and flywheels are in briggs motors are the same in alot of the motors . i seen some of the older cross reference lists and all the same 1 part with 50 numbers . and i know for a fact that the smaller flywheels will fit i have many times used a heavy flywheel off a push mower from the 70s on a side drive and it was the same part , same with the cranks .
 
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#57
Tell me you never thought about it! When I was younger I would never have dreamed the things I see every day! Although the vert shaft motor can be had for near nothing, it will not work. When I was 14 in 1981 my brother and I had an extra roller and had a thought we can put the old mower engine in it! Right away it was clear the carb would not function, we made an intake from heater hose tilted that bad boy and it ran good for a minute maybe two! That :censure: started knocking & smoking like a freight train, then Dad came out on account of all the smoke, experiment over! It will not oil as machinebike said at least not without some elaborate windage tray and a way to move the oil! Easier and cheaper to buy a horizontal and be done with it!
 
#58
The mounting is the easy part vertical mounting plate from upper frame tube to original horizontal engine plate and use the factory vertical mounting holes, add a dipper and drill the rod cap for oil passage from dipper and go for it.:hammer:
 
#59
Will someone just go out and do this for cryin out loud! If you prove it blows up, post a vid. If you prove that it'll run your mini all day long, post a vid. :gunsmilie:
 
#60
Will someone just go out and do this for cryin out loud! If you prove it blows up, post a vid. If you prove that it'll run your mini all day long, post a vid. :gunsmilie:
i am planing on doing it .i have thought of doing something like this for years . but wright now the only block i have that i could do this with is a Clinton . and im not too big on the idea of using it .when the snow melts im going to find a mower and set this up and if it works ill show how i did it if it blows sky high ill show that to and the carnage . if any one has a old mower block that has the intake and exhaust ports on the same side that is a 1 to 4 hp briggs and wants to donate it let me know .
 
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