Reply To: Pegson Marlow Pump impeller removal.

[hillsider]

I have seen Pegson pumps as fitted to Blackstone marine diesel engines and just to be helpful they can be left or right handed dependent on the engine direction so tread care fully when you attack the impeller nut, I would suggest you lock the impeller (not the engine) and shock the spanner or socket with a hammer to release it. The two holes in the impeller are there to use as puller holes so that should help, also looks as though you still have the impeller shroud still in place on the centre boss of the impeller this may be why it was seized and could release with some heat.
Good luck Ray.