Adirondack case guy
Well-known Member
My 1957 310 dozer is giving me fits. I bought everything from John and Chris to overhaul the 148, including new valves and guides. Took the head to local engine shop and they also replaced seats, rotors and different stem seals they recomended.
The problem is the fuel delivery system. The old MOPAR impuls fuel pump died, and years back I had bought a replacement Carter, rotary multi Voltage pump for it. ( never installed) Found that a couple of wacks with a cresent to the old pump would get it ticking again, but was a no go after overhaul. Still using a 6V system. I replumbed everything, with the Carter pump,-- got fuel to the carb,. and the 148 came to life instantly, but soon flooded out. The float could not stop the gas flow. I spent some time on the computer and found an Airtex 6V impulse fuel pump which speced at 5-8# of pressure, and description said for use in carborated engines. Well this Airtex pump does the same thing. I have taken the carb off several times, and adjusted the float bulbs lower in the bowl, with no improvement. I then cut a 3/8" steel slug and drilled it with the tineyest drill bit I had and slid it into the rubber gas line to restrict flow. It still overpowered the float. Tomarrow I will buy a carb kit for the MS carb., with hopefully a rubber tiped check valve. I can't find anything wrong with the seat or check in the carb now, but will see if new seat and check solves problem. If not I Have come up with a way to install a return line to the steel tank under the seat, but a bit aprihensive about drilling a hole in the tank with my drill to thread a return line into. I suppose I could also plumb the return line back into the supply line from sediment bowl to the pump, with the slug I made in it also.
What would you guys do?????
Loren.
The problem is the fuel delivery system. The old MOPAR impuls fuel pump died, and years back I had bought a replacement Carter, rotary multi Voltage pump for it. ( never installed) Found that a couple of wacks with a cresent to the old pump would get it ticking again, but was a no go after overhaul. Still using a 6V system. I replumbed everything, with the Carter pump,-- got fuel to the carb,. and the 148 came to life instantly, but soon flooded out. The float could not stop the gas flow. I spent some time on the computer and found an Airtex 6V impulse fuel pump which speced at 5-8# of pressure, and description said for use in carborated engines. Well this Airtex pump does the same thing. I have taken the carb off several times, and adjusted the float bulbs lower in the bowl, with no improvement. I then cut a 3/8" steel slug and drilled it with the tineyest drill bit I had and slid it into the rubber gas line to restrict flow. It still overpowered the float. Tomarrow I will buy a carb kit for the MS carb., with hopefully a rubber tiped check valve. I can't find anything wrong with the seat or check in the carb now, but will see if new seat and check solves problem. If not I Have come up with a way to install a return line to the steel tank under the seat, but a bit aprihensive about drilling a hole in the tank with my drill to thread a return line into. I suppose I could also plumb the return line back into the supply line from sediment bowl to the pump, with the slug I made in it also.
What would you guys do?????
Loren.