Looking at doing mine over the next few days, so I took a look at the factory set-up and pulled the fuel pump out today (being Anzac day and nothing open, didn't want to risk not being able to get Gates and finish the job). Just did it to take a look see. Anyway, with the Gates as opposed to the factory set-up do you need to clamp the Gates once it goes on? The factory one obviously isn't clamped, but I assume that is because it is a perfect fit. Clamps or just slide the Gates on? Thanks dan