Marcus, the spring is only intended to keep the lever from flopping to the "closed" position during a wheel change.
I can't say for sure why it's not found in a Record QR, but it would add weight, plus the presumably more-experienced Record customer might have less of a need for it(?).
David Snyder
Auburn, CA usa
>...I went to the computer and found Campagnolo Catalog 17. Lo and behold
> there is supposed to be a spring inside the qr dome on Nuovo Tipo hubs.
> Here's the page. It is part number 1304: conical tension spring
>
> http://www.campyonly.com/
>
> There is no spring like that inside Record hub qrs. Why is the spring
> here on the Tipos? It seems to me that it is doing exactly the opposite
> of what I want: it is trying to open the qr when I want it closed. Has
> anybody experienced this? I'm tempted to reassemble without the spring,
> but I have to assume it was put there for a reason. What gives?