[QUOTE=haz87;6797799]Water could have easily corroded the metering unit head. Unless you've primed it recently/cranked it over it'll be fine to undo at this point, its only over a hot engine i'd be concerned by.[/QUOTE

Just tried to pull the them out the inlet and they just kept turning.. theres also a retaining clip on each one doesnt seem to be holding the bolt , will i just pull them off with pliers and use 2 spanners , 1 on the bolt on the inlet and the other on the fuel banjo? cheers.