Blitz fuel tank switch sucks air

[Ganmain Tony]

Originally Posted by Richard Farrant

OK Chris,
Then it is drawing air through the spindle then. I was thinking it might be drawing from the unused tank as in instances from experience. as said previously, lap the taper tap in with a fine paste, like used for cleaning alloys, etc. One well known brand is Solvol Autosol.
Richard

And I should have acknowledged your post as well Rich. I think its fair to say you do do a fair bit more of this kind of stuff than me...