Just my personal opinion, but in my experience, a compression spring always works much better for belt tensioning then a tension spring. I suppose a tension spring could be made to "sorta" work, but it would require the attachment point for the tension spring on the idler arm to be longer then the forward portion that holds the idler/tracking wheel.....which isn't practical in most applications. It's just a far weaker tensioning system then a compression spring.
|