Re: Fred's Series 23 fuel pump

Posted by Owen_Dyneto On 2013/11/2 8:18:42

My next task will be to fix the charging system so it will handle additional electric load if I run the electric fuel pump at low speed.

No real need for that, the electric pump electrical draw is trivial and it could run for hours and hours without significantly drawing the battery down. Electric pumps are better at pushing than pulling so mounting it as near to the tank as possible is the preferred location.

Vapor lock should happen first at a line under negative or static pressure; the line to carburetor from the pump will be under positive pressure when the pump is in action so it is the least prone to vapor locking unless it happens to be very close to some very hot, like very close proximity to the exhaust manifold.

PS - the reserve capacity of a 6-volt battery is really quite amazing. With a non-functioning generator and the battery just suppling ignition (i.e., no headlights, heater, radio, etc.) driving 200-300 miles is very doable. JHH (John Harley) who occasionally appears on this forum did it with his 23rd series Packard enroute from NJ to Warren OH a few years ago. As have others in an emergency,