Timber Sled used to have an open chain sprocket drive, would this work on the 2013 pro ? It had a silent O ring chain.
Timber Sled open chain drive ?
- Thread starter Roadbuilder
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paulharris
Well-known member
I remember seeing it too.....similar to what they use on the mountainhorse drive. it would be heavy, but might be worth the peace of mind knowing its not gonna break
Don't think they make it any more.
I built a Edge chassis with that system and wish I would of used a CMX or RMI drive. The chain is to short and builds way to much heat it'll melt chain tensioners and snap chains. You'll just be trading one problem for another in my opinion.
I built a Edge chassis with that system and wish I would of used a CMX or RMI drive. The chain is to short and builds way to much heat it'll melt chain tensioners and snap chains. You'll just be trading one problem for another in my opinion.
They haven't made that in 5 years.
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The belt and pulleys have cogs. If it slips, the belt broke.
So I guess if you ride on a groomed trail you need to get the shovel out and fill it with snow
Or vent that side of the sled better.
G
geo
Well-known member
Laugh if you want (I am too).
I had a similar thought (or chuckle) last year with my PC. I removed the "snow funnel" (cooling duct) and "snow flinger" (cooling fan) Cat installed. Later after break-in, as I was fighting the heat I thought maybe Cat was right, you need to slowly sift snow onto the primary and let the fan fling it around lol.
I had a similar thought (or chuckle) last year with my PC. I removed the "snow funnel" (cooling duct) and "snow flinger" (cooling fan) Cat installed. Later after break-in, as I was fighting the heat I thought maybe Cat was right, you need to slowly sift snow onto the primary and let the fan fling it around lol.
theres a million things it could be i heard these belt starting moldong into the teeth more and more at 185 degrees the temps i dont feel is the reason some belts when produced had a gap in the rubber theres some pictures on here. I also think if you get ice or snow in there it would cause the belt to stretch if ice got caught inbetween the gears and belt thats why i feel they need a tensioner so it will allow the belt to flex if something runs through the gears but thats my 2 cents 
I agree, they need to have some sort of tensioner on the system. The belt needs to be able to expand and contract with temperatures, etc.
yah cause like someone said in a earlier post these new belts have no deflection so theres no room for when that belt gets stretched other than to snap or tear cogs off!
The belts dont stretch... the tensioner is to apply proper pre load to the belts... not compensate for stretch.
If a belt DID stretch... the teeth would no longer mesh with the sprockets.
If a belt DID stretch... the teeth would no longer mesh with the sprockets.
well theres your answer people i have been corrected lol thanks mountainhorse!
The main reason I would like to see a tad longer belt and a spring loaded tensioner in this system is to have a something that can give and take the extreme loads off the shafts if/when something is wedged between a sprocket and the belt.
A small piece of ice or a small twig jammed between the lower sprocket and the belt will induce massive bending forces on both shafts.
Wouldnt surprise me if someone snapped och bent a shaft, oh wait, I think i red of someone breaking a drive shaft somewhere.......... (No I dont mean that all drive shaft failures are due to dirt jammed between sprocket and belt, but it will definitely "help")
A small piece of ice or a small twig jammed between the lower sprocket and the belt will induce massive bending forces on both shafts.
Wouldnt surprise me if someone snapped och bent a shaft, oh wait, I think i red of someone breaking a drive shaft somewhere.......... (No I dont mean that all drive shaft failures are due to dirt jammed between sprocket and belt, but it will definitely "help")
