icebox187
New member
Why is there not an idler bushing on the 1" drive system? I just bought this thing and im afraid my motor is going to smoke belts.
comet 30-100 tav2
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I think adding an idler bushing would cause too much tension on the belt and unwillingly engage the system;
but to be honest, since that's by design you should ask Comet about that.
As long as it's working I wouldn't care too much.
Well, the more tension there is on your belt, the more likely it is to smoke it.
Oh, and keep in mind that the TAV2 is only rated up to -I think- 8HP,
so a higher rated engine will chew your belts pretty fast.
If you have say a 13HP engine, you should use a series40 TC instead.
'sid
but to be honest, since that's by design you should ask Comet about that.
As long as it's working I wouldn't care too much.
Well, the more tension there is on your belt, the more likely it is to smoke it.
Oh, and keep in mind that the TAV2 is only rated up to -I think- 8HP,
so a higher rated engine will chew your belts pretty fast.
If you have say a 13HP engine, you should use a series40 TC instead.
'sid
icebox187
New member
I'm within the HP range of the tav2, but it just seems odd that they would put the bushing in the kit for the smaller shaft that allows the belt to float instead of having it rub on the spinning crank. It really isn't an issue of belt tension because that isn't how these things engage. I've dealt with the issue before working on ryan jr sodcutters, where the belt was supposed to just ride loose on the pulley and what tends to happen is the belt gets smoked, or hotspotted when the idler pulley is disengaged. I'll give it a shot for this first belt and see if it's a problem, if it is I will find a solution I guess. I was just wondering if anyone else has had any issue and if they found a solution.
I know how a TC works (I'm sittiing 80cm away from on right now 
)
I'm not talking about the sheaves, just about the neck.
let me try to explain:
the driven and the belt as well as the backplate are identical on both systems no matter if 3/4" or 1" shaft.
So on a 3/4" driver the neck (what's it called..?) is small enough for the belt to have say a distance of 1/8" (didn't measure it) all around, enough room to fit a brass bushing and "lift" the belt to the ideal position for the driver sheaves to grab.
On a 1" shaft the room simply isn't there, if you would fit in a bushing like on the smaller shaft, the belt would have enough tension to transfer power from or to the rear sprocket, no matter if the sheaves are closed or not (thus quasi engaged..)
without a bushing the belt is exactly at the ideal position as it would be on a 3/4" driver.
Now, if you want a bushing comet would have needed to add a larger belt (slightly larger, but larger) to prevent said friction, then somethign else had to be modified too,
the driver maybe, maybe the backplate.. maybe something else.
maybe even everything, and that's when the price for a 1" TAV2 would raise exponentially; just because of a small bushing.
Ther is no bushing by design, live with it
'sid
PS if you think that this is a bad design, find some matching thinwall ptfe tubing and slip it onto the 'neck' and by thinwalled i mean see through thin
)I'm not talking about the sheaves, just about the neck.
let me try to explain:
the driven and the belt as well as the backplate are identical on both systems no matter if 3/4" or 1" shaft.
So on a 3/4" driver the neck (what's it called..?) is small enough for the belt to have say a distance of 1/8" (didn't measure it) all around, enough room to fit a brass bushing and "lift" the belt to the ideal position for the driver sheaves to grab.
On a 1" shaft the room simply isn't there, if you would fit in a bushing like on the smaller shaft, the belt would have enough tension to transfer power from or to the rear sprocket, no matter if the sheaves are closed or not (thus quasi engaged..)
without a bushing the belt is exactly at the ideal position as it would be on a 3/4" driver.
Now, if you want a bushing comet would have needed to add a larger belt (slightly larger, but larger) to prevent said friction, then somethign else had to be modified too,
the driver maybe, maybe the backplate.. maybe something else.
maybe even everything, and that's when the price for a 1" TAV2 would raise exponentially; just because of a small bushing.
Ther is no bushing by design, live with it
'sid
PS if you think that this is a bad design, find some matching thinwall ptfe tubing and slip it onto the 'neck' and by thinwalled i mean see through thin
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