Quote:
Originally Posted by McDoofus
What does CD have to say?
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Post some pictures of what it is you're trying to tension!
We love pictures.
There are a lot of ways to make chain tension adjustable, the way that's best for what you're doing depends on what you're doing.
This year we used washers as shims to raise the kit transmissions to tension the chains in one direction, and moved the transmission with the slotted bolt holes to tension the chains that go the other way. And we used ABS pipe cut in half lengthwise to tension the chain between the two wheels where the transmission is not. We used a screw in a tapped hole to push a bearing away from the mount, to tension the belt.
Some teams use a "floating" sprocket to tension a chain, it just sits in the middle and is held in by the chain on both sides.
We've made tensioning blocks from oil impregnated nylon rod. Machining required.
btw chains don't "stretch", instead they wear at each joint. The wear looks like stretch because the chain gets longer, but it's just wear.