Hi, new to pinball and just bought a Funhouse-- my first machine. I purchased one the metal gears for the jaw (the 1/4 gear with the gearstops) on e-bay (see pic). However, the range on it seems a little different from the original. In short, the gear stop (the long ends) is controlling the range of motion on one end, but not the other. Where it is controlling the range, the mouth has room to close more (it used to close just a little more). Where it is not, the mouth fully opens, but the mouth/jaw linkage, and not the gear stop, is doing the stopping.
It functions, but I am worried that the strain on the jaw linkage (because the linkage is doing the stopping) will cause the part to break at some point. I am sure that the install is correct. Also I seem to have confirmed that the arm angle on the old gear is a little different when the gears are same position.
Can anyone provide me with guidance on this? Thanks!