Bruzilla
Well-Known Member
I went to install a new production Duralast water pump on my 440, and after I tightened the bolts down I could barely turn the pump, and when I did I was hearing scraping.
I pulled the pump off and sprayed some engine enamel inside the housing and placed the pump on by hand and turned it several times. I took the pump off and there was paint on the very end of just one impeller vane. I ground the end of the vane a bit and reinstalled and it worked fine.
So if you buy a Duralast pump you might want to check the vanes for any excess metal before installing.
I pulled the pump off and sprayed some engine enamel inside the housing and placed the pump on by hand and turned it several times. I took the pump off and there was paint on the very end of just one impeller vane. I ground the end of the vane a bit and reinstalled and it worked fine.
So if you buy a Duralast pump you might want to check the vanes for any excess metal before installing.