Hey guys. First time really posting been reading through a lot over the last few months.
I am in the process of rebuilding my Berkeley JB pump and I got the bowl off and have found the impeller nut has a spanner nut? (see pic) Not seen this in all the posts i have searched about rebuilding the pump. I am thinking I may just cut it off. I have the tools in the American Turbine repair manual to remove the impeller. I am just wondering if anybody has come across this style nut and had any other ideas than cutting to take it off.
I have been soaking it with penetrating oil for a few days now as I haven't had time to get in the garage and work to get it apart.
My plan is to just re seal and put new bearings in the pump. From what I can tell the impeller looks good.
Also does the wear on the shaft look ok? there are a few grooves in it but nothing too deep.
I have built plenty of engines, transmissions and rear ends over the years but this is my first jet pump rebuild.
thanks guys for the input it is much appreciated