I just returned from a long road trip in my 60, towing my new OR trailer. Itinerary included NW Nevada, Eastern OR, Eastern WA, Northcentral ID, Montana, Utah (MOAB), Eastern AZ (Canyon de Chelly), Western AZ (Kiabab and North Rim of the Grand Canyon).
Aside from a seroius lack of power on the tougher grades, all went well until I reached AZ, tho' I did tear off the pintle hitch on the upper Selway in Idaho. In AZ, I blew a top hose and had to replace it - no problem. As I reached 7000 ft on the Kaibab, it was pushing 100 degrees temperature, and I experienced what I believe was a vapor lock, which caused the engine to stutter and die as I tried to drive uphill. I thought it might be a fuel pump, fuel filter or carburater problem, and checked for these problems. o indications were found. After cooling overnight, the truck ran with some moderate hiccups.
After decending in altitude and reaching cooler evening air I had no further problems and drove home from Fredonia, AZ in about 14 hours. Truck ran strong in the denser, cooler air.
I would like to design a fix for this problem. I beileve a vapor lock could be overcome with an electric fuel pump and pressure regulator, mounted between the tank and the mechanical fuel pump. I am thinking that this could be done in such a way that it would pressurize the fuel line to the mechnical pump and force liquid fuel to the pump.
Anyone had this problem and developed a fix?
Mike S.
Aside from a seroius lack of power on the tougher grades, all went well until I reached AZ, tho' I did tear off the pintle hitch on the upper Selway in Idaho. In AZ, I blew a top hose and had to replace it - no problem. As I reached 7000 ft on the Kaibab, it was pushing 100 degrees temperature, and I experienced what I believe was a vapor lock, which caused the engine to stutter and die as I tried to drive uphill. I thought it might be a fuel pump, fuel filter or carburater problem, and checked for these problems. o indications were found. After cooling overnight, the truck ran with some moderate hiccups.
After decending in altitude and reaching cooler evening air I had no further problems and drove home from Fredonia, AZ in about 14 hours. Truck ran strong in the denser, cooler air.
I would like to design a fix for this problem. I beileve a vapor lock could be overcome with an electric fuel pump and pressure regulator, mounted between the tank and the mechanical fuel pump. I am thinking that this could be done in such a way that it would pressurize the fuel line to the mechnical pump and force liquid fuel to the pump.
Anyone had this problem and developed a fix?
Mike S.
