Home › Forum › Ask A Member › Johnson 5.5 won’t idle › Reply To: Johnson 5.5 won’t idle
OK, so the bottom of the crank is rubbing on the mag plate? You mention lateral movement in the mag plate, but how about up and down movement? I don’t know what could cause this issue unless the mag plate mount/support is improperly installed. Someone may have overtorqued the flywheel (with an impact gun) forcing the flywheel down and ruining the taper fit. Like others have said, looks like the other coil may be rubbing, do you have the correct coil alignment tool?
Did you figure out if the engine was running on two cylinders before you pulled the flywheel off again. Perhaps the knocking noise is being caused by the flywheel hitting the mag plate/coil, but you sure want to figure that out. I would check the rods for slop also, this can be done without pulling the powerhead apart.