@Essiv
I know you've fixed the problem but for future reference and to possibly help others with the same problematic hose fitting here's a company that can supply replacement 'Hose Collars', which is what they are called. On Fiats and Lancias, these Hose Collars are used to secure 7.5mm ID /13mm OD rubber fuel hose to the fuel rail without using clamps. Also check out the 2 little pics below the main image as they show how the collar grips the hose and the dimensions of the collar.
I know you've fixed the problem but for future reference and to possibly help others with the same problematic hose fitting here's a company that can supply replacement 'Hose Collars', which is what they are called. On Fiats and Lancias, these Hose Collars are used to secure 7.5mm ID /13mm OD rubber fuel hose to the fuel rail without using clamps. Also check out the 2 little pics below the main image as they show how the collar grips the hose and the dimensions of the collar.