NarrowboatReliance

Hello all, I want to replace these bleeders on what I think is my fuel pump (see photos attached). Can anyone help me to identify what they'd be called, or the part number, or even better can point me towards where I could buy them? I've rounded the flat edges using metric spanners, so I'll make sure I'm the future to only use whitworth spanners for this job

Hello, could you please clarify what you mean by 'big cover and the cam gear'? I'm intend to do a full oil change of my Lister JP2 marine engine soon and want to this right

Dear all I've got three solar panels which will feed into a solar charger controller to charge three leisure batteries (starter battery on a different circuit). Should I connect them in series or parallel? I've been looking at sites across the web and can't work out which would be better. What do you do?