discomania
Well-Known Member
This rust, somewhere, is probably almost certainly what is causing your issue.
In the image above, the gear on the left spins that top flyweight housing, can you see the metal flap things that stick out the flyweight housing? these are the weights, at different speeds the weights sit at different points and push the shaft they sit on into the levers, this system of parts makes up the governor, with no spinning effect the governor sits in FULL fuel delivery position, that will be in this case with the shaft over to the left of the image (because the weights want to fly out straight, in doing so they shove the shaft into the right, so you want to see if that shaft will move side to side, particularly to the right which reduces fuel (looking at the image). The pump simply constantly wants to be spinning, this is the normal for the FIP, moving! The governor however needs to deal with demand from us mortals so the governor is adjustable by the throttle which is what the top linkage does. It can basically alter the point at the pump says right, no more fuel (which isn't often when driving) that flyweight system is VERY sensitive and will notice changes in speeds that we cannot even detect, but it basically keeps enough fuel going in to keep the engine going.
So lets say you push your foot halfway to the floor, the linkage alters the governors set point, the system now tries to equalise itself at this new set point, to do this it must spin faster to get the weights out further, then it will start to shut down fuel delivery to maintain speed rather than accelerate.
So - knowing that, did all those bits move correctly?
