1990 vn calais v8

[Shaun harimate]

Hi there I have a 1990 vn calais v8
Funny this when I fill the fuel tank
The pump stops an trips out an is not allowing me to fill tank any tips if this is a evap canister or purge valve

Or anything causing this thanks

 

[MikeC]

Try turning the filler nozzle a bit sideways, it stops the backpressure build up that shuts off the bowser pump.