Thats exactly what i thought...baja5 wrote:Non steady, fluttering knocks are usually Main bearings. Although, it could also be the fuel pump rod, you can start the engine, let it idle for a minute to fill the carb, then pull the fuel pump off and the rod out. Then start the engine and see if the noise is gone. if not the it is deeper.
i have a electric fuel pump, but i just have a fuel pump sitting in place, so i took it off, and there wasnt a rod in there(?) so i fabbed up a block off plate and put that on(if my computer would work i would have a pic)
And the knock went away for like a minute, then i shut it off and started it back up and it was knockin again.
But my elec. fuel pump is really loud when i first turn the key(as its pumping fuel to the carb) but once its got fuel it quiets right down.
but i was thinking that when i rev it, the fuel pump is pumping more fuel, and is making that noise.(because both noises sound the same)
Idk though, im just gonna run it till she pukes.





















