Fuel tap

Hello peeps! Is good to be back again
Ive changed the silent block mounts on my Li Special and took it for a spin,all was good.Been in the garage today and smelt petrol.I noticed that my rear exit fuel tap is rubbing and has worn away on the mount letting petrol seep out.Is there a way to get a bit of clearance between the two?

Ive changed the silent block mounts on my Li Special and took it for a spin,all was good.Been in the garage today and smelt petrol.I noticed that my rear exit fuel tap is rubbing and has worn away on the mount letting petrol seep out.Is there a way to get a bit of clearance between the two?