Here's a old pump that I have to rewire. The Cover plate screws have rusted in place, and the Cover plate itself was not water-tight and was hanging from one screw. I just reached out to move it and the screw broke off. I'm not sure if I can re-tap the holes because this is solid cast-iron and I think it would destroy my tap & drill bits (although I have not tried this yet).
Have any of you run across this, and if so, what did/would you use to seal up the built-in j-box? I have all sorts of water-tight cover plates in my truck but need to fasten them somehow. Thanks in advance for your suggestions!
Double the info on tapping. When you tap cast iron, you don't get nice spirals like in steel. The cast kind of crumbles out of the way of the tap into fine, abrasive dust or chips. If the hole is vertical, it'll fall out fairly well but if you are going horizontal, back out completely a couple of times and blow out the crud. Slow and easy is the rule.
Re: Cover plate for old cast iron water pump#31020 11/06/0308:34 AM11/06/0308:34 AM