Re: Carburator $ Fuel PROBLEM HELP!!!!

Posted by fred kanter On 2011/6/14 21:29:05

Doesn't much matter if we are dealing with a six, 120, custom, v-12 etc, they all have similar functioning fuel pumps and carburetors. Pressure is pressure, but I don't know how you can get too much presure out of a FP, as it is produced by the strength of the diaphragm spring. If a diaph is not flexed enough when assembled I think it wqould perhaps rupture but for sure not produce too much pressure.

He is describing a flooding problem so perhaps float level is set incorrectly, float has a hole in it and is sinking, or it is binding in its movement OR there is foreign matter in the needle and seat. Often when this problem occurs with one of our rebuilts and a customer returns it we find teflon tape in the needle/seat. Teflon tape should not be used on the fuel system, it is useful on pipe threads only, such as the heater tap in the head. The fuel system pressure is retained by the flares in the fitting and the mating surface on the pipe, not by the threads on the pipe fitting.