Re: Mercury KF3 gear case set up

[foot_doctor]

The simple test that I prescribe is this: After assembly, lift up on the drive shaft and press in on the prop shaft while rotating the drive shaft in a clockwise direction. With some resistance applied to the prop shaft it should feel as though the coupling between the shafts was accomplished by a rubber hose. No clicking or bumping of any gear teeth should be felt. If the drive shaft is allowed to fall into the gear case, all of the teeth should be felt. It does not operate in that position, as the gears are driven apart by the energy transfer. Trial and error works. Have patience. There are typically no standard beginning shim standards, and if a different gear set or bearing set are employed from original, the original shims may not be appropriate.
R.T.