Quote Originally Posted by BJH324JH View Post
Yup, true. I guess I'll gamble. Maybe I can machine a stainless steel casing and get rid of the plastic casing.
Don't. The plastic housing does a few jobs as mentioned and the pump is either cast into it or pressed in. Worst case scenario you could make a protective housing so it doesn't get dirt etc on it. Cutting it apart presents risks. They are pretty cheap to buy but kind of pointless if you butcher one or 2 while making modifications (just an opinion...)