RE: What about the ROBART fuel pump?
Hi again, Excerpt from a Peter Chinn assesmant on various pumps follows:- The Robart pump is assembled as a sealed unit and should not be dismantled. Provided that a fuel filter is installed between the tank and pump, cleaning should not be necessary. As with an engine, however, fuel left in the pump after use will , in time, evaporate, leaving the oil content to coagulate and, possibly, gum the valves. This can be prevented by removing the pump (if one is not intending to use it for a
few weeks) and blowing out the fuel remaining in it. Don't use a petroleum solvent and don't poke anything through any of the three openings in the unit: damage to the valve or diaphragm will result. One other thing to watch is fuel composition: home-brewers who persist in adding petrol to their fuel will find that this (and
certain other additives) will ruin the pump diaphragm.
Hope it helps any would be's
Phil