[Cliff R]

Why does it take "a lot of cranking" to get the carb to refill?

Why would you have to put any fuel into the carb to get it to fire off?

The accl pump does that for you and the fuel under the pump is trapped in a confined space and you still should get several shots of fuel to the engine even if the fuel level in the carb is low or empty.

In many of these cases where we see folks have difficult cold starts the accl pump seal is defective and weak or no pump shot, or it has to get wet again with fuel before it swells back up and starts working.

A good modern accl pump assembly with a flouroelostamer seal and garter spring to keep in in contact with the pump bore will not swell up, shrink, fail or not provide a positive pump shot during a cold start.

Another problem we see with poor or lack of good accl pump function is failing to gently seat the check ball during the rebuild to make sure it's not allowing fuel above it to drain back some.......Cliff

https://cliffshighperformance.com/Qu...-pump-assembly