Sparking clutch
- Thread starter Yezker
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I've never heard of that...I have seen one overheat and let metal go from inside when it started glowing red...
It hasn't gotten sand inside of it or maybe rust has it? Maybe it needs cleaned up? Other than that all I can think of is that the gearing isn't right and it's overheating or something internal has a burr on it.
Take it off and inspect it. Take some pics of it. Make sure it is properly lubed and not galling up or slipping on the crankshaft too.
JTSpeedDemon
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When Carsandcameras had too high gearing on Pugly, their footage clearly showed sparks as the clutch was slipping.
So you have a gearing problem somewhere. What's the sprocket and clutch tooth count and rear tire diameter?
So you have a gearing problem somewhere. What's the sprocket and clutch tooth count and rear tire diameter?
3/4 bore 12T
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---------- Post added at 08:55 AM ---------- Previous post was at 08:39 AM ----------
I didn’t lube anything. Should I have? If so I got a Napa auto parts right next to me, what’s the best lube?
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---------- Post added at 08:55 AM ---------- Previous post was at 08:39 AM ----------
I didn’t lube anything. Should I have? If so I got a Napa auto parts right next to me, what’s the best lube?
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JTSpeedDemon
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You need to oil the bushing where the clutch rides on the crankshaft.
12T clutch is a good start, but we need to know more. How many teeth are on the axle sprocket? What's the diameter of the rear tires?
12T clutch is a good start, but we need to know more. How many teeth are on the axle sprocket? What's the diameter of the rear tires?
JTSpeedDemon
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I can see a lot of ground clearance and suspension components, so I'm guessing huge tires.
We need numbers of exactly how many teeth are on the axle sprocket(or gear, if that's what you want to call it).
A picture of the tire size numbers on the tire sidewall is also needed.
I understand you're new, but we really need specific numbers to help.
We need numbers of exactly how many teeth are on the axle sprocket(or gear, if that's what you want to call it).
A picture of the tire size numbers on the tire sidewall is also needed.
I understand you're new, but we really need specific numbers to help.
JTSpeedDemon
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If that pic is your exact setup, it looks more like 40 something teeth. But 12T on the clutch, and 60T on the axle is a 5/1 gear ratio. That's high even for a small tire, lightweight kart.
Can you take some pictures of what you have and what your rear tire size is? We need very specific information to help you.
Can you take some pictures of what you have and what your rear tire size is? We need very specific information to help you.
You would be better served with an 80 tooth sprocket on that I think, you'd have way more pull off the bottom...a TC would be the best option and you could swing a 72t sprocket easy enough without as much issue but I think your gearing is wrong
Budget GoKart
Aka a kenbar
You can get a 30 series torque converter from eBay for 50$ return the clutch and buy an eBay 50$ torque converter it needs to be 3/4th shaft and 12t to match the same as your clutch
JTSpeedDemon
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Tires look like 20"+, definitely way too tall gearing.
As BigWes said above, an 80T sprocket would probably get you scootin' along a little better, although it'd still be a bit high. I would suggest that same thing as Budget GoKart here, get a Chinese torque converter off Ebay, plus an 80T axle sprocket. That should cure the slipping issues.
If you still have issues after that, a jackshaft is needed.
As BigWes said above, an 80T sprocket would probably get you scootin' along a little better, although it'd still be a bit high. I would suggest that same thing as Budget GoKart here, get a Chinese torque converter off Ebay, plus an 80T axle sprocket. That should cure the slipping issues.
If you still have issues after that, a jackshaft is needed.
JTSpeedDemon
2019 Build Off Winner!
Wrong chain pitch, that would not work. Look for 35# pitch chain sprockets, it looks like that's what you have.
Measure the distance between the teeth of your current sprocket. If it's 3/8", it's 35# pitch chain. If it's 1/2", we'll need more measurements to figure it out.
Measure the distance between the teeth of your current sprocket. If it's 3/8", it's 35# pitch chain. If it's 1/2", we'll need more measurements to figure it out.
JTSpeedDemon
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That's 35# pitch chain. Try searching: "35# 80T sprocket"
slowJEEP
New member
CVT and/or jackshaft will make you a lot happier.
Jim in Florida
Jim in Florida
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