I'm changing my timing belt and wanted to put on my new tensioner, but it's totally different :? Because of the diameter it won't fit and the bolt hole is totally different too... It's supposed to be a tensioner for a B16A2, which I assume is the same as for a B16A since they are both the same except for ECU and pistons right? The green one is supposed to be for a B16A2. Who can help me?