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Old 05-30-2010, 12:19 AM
jace jace is offline
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Default belt tensioner clutch?

can anyone tell me how to set a belt tensioner clutch up and what size pulley to use with a 5.5 honda clone 18 inch tires and the cart weighing about 300 puond with me in it
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Old 05-30-2010, 05:53 AM
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the pully size is not important as long as they are the same size set one on the engine and one on the jack shaft so the engine can turn without rubbing the belt then fit an idler pullly on a lever and fit that on the slack side of the belt (1) make it so the lever can push the belt inwards then fit a control arm to push the idler lever in and out

(1) the belt has the side that pulls the driven pulley around and the return side or the slack side
hope this helps and hope u can decifer the diagram
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Old 05-30-2010, 08:16 PM
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The pulley size IS important. Do we have a jackshaft already? Do we want to alter the ratio?
Let's figure this out- Jace, what WAS your ratio (clutch teeth/ axle teeth), and WAS there a jackshaft?
Edit- after looking at your specs, you likely will need a jackshaft for compound gear reduction. Fowler's description is pretty accurate except for the pulley size thing. In addition, I would recommend a strong spring (maybe off a trampoline) to hold the tension, so you're not jamming the handle the whole time you're driving. That would be severely annoying.
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Old 05-30-2010, 09:10 PM
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When I made mine I used 2 trampoline springs for tension. I also didn't have a jackshaft, I just had a 2 1/2" pulley going to a 12" pulley. It worked really well, I would never buy a cent. clutch
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Old 05-30-2010, 09:50 PM
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what are the different types of clutches?? and what are theyre advantages?
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Old 05-30-2010, 10:42 PM
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centrufugal isn easy to install there is no need for a jack saft but it is fixed ratio
tensioner is cheap but it is harder to make it can have the ratio changed if u change the pully size
toque converter is the best but it is expensive it give u gears though
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Old 05-31-2010, 04:44 AM
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EDIT* the toque converter doesnt give u selectable gears it is more of an automatic transmision but the range is infinate
sorry for the last post but i had to write somting quick as i was in maths class
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Old 05-31-2010, 03:24 PM
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Yeah I figured it would pick the best torque
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Old 05-31-2010, 04:29 PM
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i already have a jack shaft with a 9:1 ratio topped out at 41 mph and had pretty good take off so id like to keep the same ratio
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Old 05-31-2010, 06:25 PM
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Great. Then the rest is just math. Compare your engine sprocket and the jackshaft sprocket you're replacing. Lets say 10T and 40T for example. So that's 4:1. Now- Pulleys are measured in diameter. (of course). So in this case, your jackshaft pulley needs to be 4 times the diameter of the engine pulley to maintain the ratios you have now. So if you found a 2 1/2" engine pulley- 2.5 X 4 =10. So you'd need a 10" jackshaft pulley. For a 3", you'd need 12". FWIW, I believe bigger is better, as long as you can fit it. 1) A larger pulley will provide more surface area for the belt to grab, which will equal a better hookup and longer belt life. Again, depend what you can fit. At the above ratio, if you select a 6" engine pulley, youd need a 24" jackshaft pulley. Good luck fitting that...
2) A larger engine pulley will add to the flywheel effect. More inertia is helpful with a manual clutch.
Hope this helps...
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Old 06-01-2010, 05:15 AM
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very much. thank you
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Old 06-01-2010, 05:16 AM
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S'allright. Cheers!
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Treat it as you would an aircraft frame and you should have no problems. -Name Withheld
The Manual- "Just the manufacturer's opinion of how to put this together."- Tim "The Tool Man" Taylor
Put down the wrench, and come out with your hands up!- Me!
Wrench, Wheel, Wreck, Repeat...
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