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"Andre" wrote in message
... I have seen on the Great Plains Web site that they repeatedly recommend using a fuel pump. They also recommend putting the fuel pump between the Gascolator and the Carb. What happens if the fuel pump fails or loses power? How much fuel pressure will the fuel pump add? Won't the aditional fuel pressure possibly flood the carb? How do I rig a return line to the fuel tank? Why should a fuel pump be installed between the gascolator and carb? Any Ideas? Andre......... An electric fuel pump shuts off when the fuel pressure rises to ~6 psig. The carb needle valve easily handles that much. If the fuel pump is downstream of the gascolator, the gascolator isn't pressurized. This reduces the possibility of a gascolator failure which could dump your fuel in a hurry. It also means that the electric fuel pump is ahead of the firewall. This is both good and bad. In the event of a fuel leak in the cockpit, the pump won't be helping to fill the footwell with gas. The bad part is the pump is exposed to engine heat. In the Sonerai, as in the RV's, I'd install the electric pump at the tank outlet. Electric pumps push fuel much better than they pull it. Just my opinion, tho. Rich S. |
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