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romic00
Apprentece
Canada
26 Posts |
 Posted - Jun 23 2003 : 3:27:10 PM
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Hi again. I got an engine but now i need to hook it up to the wheel and i was just wondering if Aron used a small bike wheel with a small thing for the chain to pull? If it is a small wheel how did he hook it up to the body of the go kart.THX.
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 24 2003 : 10:18:11 AM
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Glad you got the engine...Does it run?
I need some more information about what you are planning to do before I can suggest something. One wheel or two? How is your axel configured? Does the engine have a clutch?
My kart used a single bicycle wheel at the back with a chain drive from a small jackshaft between the engine and the wheel. You can sort of see it in this picture:
I would recommend you go with belt drive instead of chain drive. It's a lot easier to line up, and generally cheaper. I always have problems with throwing the chain. My scooter had that issue, and so did the kart until I was able to perfectly line things up. Belts have a much greater tolerance of misalignment.
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romic00
Apprentece
Canada
26 Posts |
Posted - Jun 24 2003 : 10:40:07 AM
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Ok the engine that i got is exactly like yours with the same clutch. Yesterday i made an axel with a pulley in the middle and 2 wheels and when i started the engine and engaged the cluch the car didn't even move with me sitting on it only if it was empty. I bolive that the mistake was that the axel was sitting through a hole of a 2x4 piece of wood. And maybe i needed more tension in the belt. But i decided to do it like yours now with only one wheel in the back. I got almost everything i need exept the wheel but I can find one. I also have the thing to convert from a belt drive to a chain drive and i think i'm going to use it because it makes it easier to put the engine and to connect it to the wheel. I just need to know how did you connect the wheel to the body (the wood board).
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romic00
Apprentece
Canada
26 Posts |
Posted - Jun 24 2003 : 11:19:22 PM
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Also Aron are you going to the air show in london cause i wana go and maybe we can meet somewhere there.
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 25 2003 : 11:58:35 AM
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1. You need some decent belt tension to use that style of clutch. Make sure there is not more then 1/2 inch deflection in the belt.
2. Make sure that the copper/brash idler bushing is in place between the two pully halves in the clutch. This part is critical to both proper idling and clamping of the belt.
3. You will probably need to put some pretty good force on the clutch to allow it to grab the belt.
4. What is your gear ratio?
5. You need proper bearings. The "holes in the wood" generate enormous amounts of friction if any kind of weight is placed on them. Bearings are available at places like Princess Auto, Canadian Tire, any bearing supplier (duh), etc.
6. If you are going to use a single back wheel, then you can mount it between two angle irons. This is clearly shown in the picture I posted. Have fun getting the chain drive straight...
7. I recommend a kart with two rear wheels instead of one for stability reasons. Also remember that little bike wheels are not meant to take that kind of weight, and you will break the spokes.
8. No, I am not going to the airshow. I don't see the point of looking at planes until I get my pilots license. 
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BEatonNo1
Nobel Prize Winner
USA
1133 Posts |
Posted - Jun 25 2003 : 9:45:42 PM
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well if you can bare to spend the time I would recommend using a chain...I always have problems with the belts slipping in the wet nomater how tight you get them.
Aaron airshows can be quite fun, once I saw a P-40 taxi into a Zero...it was great peices went everywhere made for some great soveniers 
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romic00
Apprentece
Canada
26 Posts |
Posted - Jun 27 2003 : 3:05:34 PM
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Ok i finaly got it going and it's working preety good for my first go kart but the clutch gets stuck when i push it hard. Now i saw that it has some problems. The little ring that is on the shaft that is suppost to idlle the belt is going down on the shaft towords the engine. and leaves the belt on the shaft. Is this because the bet is not exactly straight? Also is that ring suppost to go under the small pulley from the engine because it goes under half way.Do u think that if i get the belt straight the ring would stay under the belt? THX
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 27 2003 : 3:21:38 PM
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It is normal for the ring (idler bushing) to creep a little...If you belt is not straight, then exactly how crooked is it? If it is too badly off, then the clutch won't grip it properly.
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Nerf Smurf
Mad Scientist
USA
390 Posts |
Posted - Jul 08 2003 : 11:28:11 AM
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bearings are avalible at auto zone in the US
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jul 08 2003 : 5:14:30 PM
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Yes, but they are probably not the bearings he would be looking for. He is looking for a standard ball bearing on a flange for mounting. What you would find at AutoZone are common wheel bearings, which are normally needle bearings in a taper shape. They don't have a mouting flange, and it is a lot easier to buy the bearing and flange as one piece then try to make a compound angled flange for an automotive wheel bearing.
Also, bearings MUST be supported properly when they are in use. Too much sheer force and they won't last long. The flanges used accomplish this nicely.
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