i've got a Merc 4 hp 1972 Motor. it didnt push any water out so i ordered an impeller. i removed the Lower unit and the top cap of the water pump. found the impeller to be in pieces. i am trying to remove the old impeller and am finding it difficult because its in a tight spot.

i am doing this without a Manual (for now) but how does one take the shaft off to give me more room to remove the impeller.

and yes i am to get a Manual. just thought i'd tap the knowldge base here.

Thanks

Again, not much on black, but normally, you can slide the impeller off.  It may be stuck at the bottom where it's been running but you should be able to get it to slide up the shaft after you clean the shaft off good.   A manual is a great tool.

I am a certified Merc.machanic..You should be able to pull the impellor straight up and off if this is the year I am thinking of....If it has gotton hot they are sometimes tough to get off If you can take a digital picture of it and send it to me I can give you some more help...

thanks for your help, but i did get it off, i used the cutting tool i had for my Dremmel tool, worked great, didnt even mark the shaft. i never thought id use that thing.

replaced with new, and POOF!! water now.