Hi folks I need some advice on oil pumps One of my Stihl MS260 needs a new oil pump, and I found a used one in some old parts etc. But, after having it cleaned and oiled up etc, the pump "drive wheel" (See picture) runs smooth, but sometimes needs more "pressure" to spin around. It is not entirely "free spin", as I my old, but apperently, broken non adjustable oil pump was. My question here, will this ruin the plastic worm gear? or do they all act like this? Any help is appriciated!