1971 D9TE Block D0VE-C Heads, mechanical fuel pump
P.O. has a 3 line fuel pump on the motor, the return port was blocked off with a bolt after about 6 inches. Also a160° stat in it. I switched it to a 192° stat and started experience vapor lock. Bought an online fuel filter with a vapor vent/return and put it between the pump and the carb in front of the fan (flex fan) also want to run the pump return line back to the tank.
The general idea is to keep the fuel circulating, so it's not stagnant, as much as possible.
Idea #1 : Initially I ran both the filter and the pump vent lines to the tank vent line (that goes to the charcoal canister) I "T'd" both off at the soft line at the tank. STUPID IDEA I figured it would go into the tank vs the canister but no.. it came out of the canister
Idea #2 : Turn the tank vent charcoal canister into a dedicated return line for the 2 return lines (from the filter and pump) and install a vented cap for vacuum and pressure.
Idea #3 : run it dead head till the fuel is out, then pull the tank wash it out and burn the remaining fumes with the neck sander hole and breather hole open (to be safe) then weld 2 bungs to add return lines
Not sure which to do.. I think #3 would be the best but I dont want to do that if its unneccessary.. opinions?
P.O. has a 3 line fuel pump on the motor, the return port was blocked off with a bolt after about 6 inches. Also a160° stat in it. I switched it to a 192° stat and started experience vapor lock. Bought an online fuel filter with a vapor vent/return and put it between the pump and the carb in front of the fan (flex fan) also want to run the pump return line back to the tank.
The general idea is to keep the fuel circulating, so it's not stagnant, as much as possible.
Idea #1 : Initially I ran both the filter and the pump vent lines to the tank vent line (that goes to the charcoal canister) I "T'd" both off at the soft line at the tank. STUPID IDEA I figured it would go into the tank vs the canister but no.. it came out of the canister
Idea #2 : Turn the tank vent charcoal canister into a dedicated return line for the 2 return lines (from the filter and pump) and install a vented cap for vacuum and pressure.
Idea #3 : run it dead head till the fuel is out, then pull the tank wash it out and burn the remaining fumes with the neck sander hole and breather hole open (to be safe) then weld 2 bungs to add return lines
Not sure which to do.. I think #3 would be the best but I dont want to do that if its unneccessary.. opinions?