Did 20kms yesterday , no problems. Tank 1/2 full. Today 25kms, pause for lunch, 200m, dies - no fuel in filter, Huco pump chattering. Pull inlet pipe off, try to blow back , not sure. Lower inlet hose below car, dribble of fuel. Reconnect to pump, power, still empty filter. Pull Outlet hose off pump, power - fuel! Reconnect hoses, restart. Do another 5kms, same again, or similar. Pump is mounted under coil, and have seen pics of other Huco in same place, no mention of problems. Since getting home have blown air through the supply hose and heard it blowing vigorous bubbles in the tank.
Sort of plan is to locate pump lower, and away from exhaust, and try stationery running to see if anything happens. Is there likely to be a problem with the pipes from the rear? Crud in the tank blocking the outlet? When I can see the reserve tap I will check that its fully at one extreme or the other.