Try to understand whether system changes turbine geometry. If the rod (in the middle of the photo. рointers shown) moves left when starting the engine, it works. You can also try to move the rod by hand, it should move without great effort.

If not move, do not rush to buy new turbines. One our owner (Borche) with an issue decided its low costs (around 130 pounds, along with removing and installing turbines). He took the turbine in a specialized service and was disassembled and clean system changes turbine geometry. Turbine will not disassemble. And after this problem went. Once such services exist in Russia (http://www.turboost.ru/about.php), in Britain, they must be.