not long spoke with jon ,took the belt off a measured from the 2nd raised inner peak on the s/c pulley to the machined edge of the s/c nose and it should be 170.5 mm but mine is 168mm ,so its 2.5 mm out no wonder its chewing the belt .
anyway jon is gonna get back to me monday morning and go through what we need to do ,but he said it will probably be best to take the pulley off ,make a 2.5 mm shim up to put inside the pulley then put it back on so it gets the right belt run
