Help with Sears 7hp

Hello, got a sears 7hp model 217.585861 that the engine is air cooled and lower is water cooled......I have had this motor since 19080 or so...cranked it up today and as usual she fired right up.....problem though as when i put her in gear there was no water spray....this happens 3 out of 4 times she was in gear.......Question- I know this is the impeller and m,ay have to get aother 1 but what parts am I going to prpbalbly need as I am sure I will have to order them from twin city outboard......Mack

Water pump kit
https://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Boat-motor-Parts/Model-217585861/0247/1305320/00001037/00003?blt=06&prst=0&shdMod=217585861

They are proud of 'em also.

I used a impeller that was for a Mercury in my eska 9.5 hp. It might be the same as yours. What size is the driveshaft? Is it .438? Does yours look like this?
https://www.ebay.com/itm/WATER-PUMP-KIT-with-HOUSING-ESKA-190129-Uses-Impeller-26511-26251-or-36703-/121086672584?pt=Boat_Parts_Accessories_Gear&hash=item1c3153fec8&vxp=mtr
If it does then you can use the Merc impeller

Steve

Thanks nccatfisher and acwd.....