Because of age and corrosion issues, I am in the process of replacing the bell housing on my starboard 1998 alpha one gen 2 outdrive. The oil reserve valve on the old bell housing seems to be working fine but I'm not sure whether or how to remove the old part without damage for use on the new housing. I'm trying to avoid the $75 for a new one if it can be avoided. I note that it has o-rings that probably should be replaced. Any tips will be appreciated.