Brass raw water pump
 

I have the raw water pump apart off my 496ho and I have some light scoring inside which seems to be common with them. The scoring isn't very bad but don't want to put a new impeller in and have prime issues with it. Is there still a wear plate kit you can instead of replacing the whole pump?

If you replace get a pump from Hardin Marine.

The Hardin marine setup is the ideal setup. Howver. I've been running the Aftermarket Marine wearplate/impeller kits since 15' with no problems. If you can catch your fingernail on the wear ridges in the stock housing it needs attention. Just a new impeller will not fix your problem.

ok sounds good...where did you find your kit? I cannot find the jc marine one I have read about.

Have had one of these on both my boats without issue since 1995.
https://www.ebay.com/p/OEM-Mercruise...1173657&chn=ps

Changed to the Hardin marine SS last season on the Formula and notice when installing that there is a slight rise in one side of the center edge. Don't know if this is an issue or not, but trying to get my oil temps down. Installed a water pressure gauge this season. Should be able to see what is going on.

Woops my bad, wrong pump

Captains Choice in Fort Walton Beach, FL normally has them in stock. At least that is where I bought mine. They work great, I've been using them for about 4 years with no problems...

Thanks for the help..i ordered the aftermarket marine kit... Will use it for a couple years then will look into getting the hardin ss pump.