I thought this tensioner was well manufactured for a non-Vauxhall/Opel spare part. Initial fitting was easy, but the spring release pin was difficult to remove due to lack of space between the pin and chassis. No way could I get even a small pair of pliers in there to pull it out. After a bit of thought, I managed to clamp a very small tap wrench on to the end of the pin and drove it out using a long thin drift. Works fine. Thanks.