I'm in the middle of rebuilding my Zetec ST 170 engine and I've taken the oil pump off. There is a small area of light scoring on the cover plate. Would I be wise putting a new pump on while I've got the engine on the bench or is light scoring OK, the rotors look ok?
Thanks
Ian

i would because they are low cost new.

But i had an oil pump on silvertop go a year or so back causing a lot of damage so im paranoid.

I'd fit a new one while you've got it apart, better safe than sorry!

I've replaced water pumps on several cars when having cam belts changed. It's easier and cheaper than taking the whole lot apart again should the water pump fail just after the cam belts been done.

Yep, gonna put new oil and water pumps on
Ta Ian