Garry, my low speed insert / nozzle pried out easy with two screw drivers.
I was thinking about using a little loc-tite upon installation.

When I get the new lead seal, should I attempt to "dig" out
the old one, or just add the new on top of old?

Looks like it might be a pain to dig out. I suppose one could
split the crankcase, but not sure one could "poke" at the
old seal from the inside of the front case?

Is there a proper distance these nozzles should be installed at?
I see nothing in the manual about that.
Mine was "bottomed out".

The inside of my nozzle hole appears a little "out of round",
like a used sand blast nozzle gets.
Will this affect the performance of the engine?
Thanks!