There has to be some space between the gears so the oil can flow between them. .006" doesn't sound like too much. What is more important is the vertical clearance between the height of the gears and the housing and the end plate. You can minimize the clearance by lapping the pump body on a piece of plate glass with a sheet of wet/dry sandpaper moistened with a little oil. Also make sure the relief valve in the pump cover is free to move and the relief spring hasn't lost its tension. Resist the urge to stretch the spring to increase oil pressure- - - - -it will go back to its original length pretty quickly.

Low oil pressure on a hot engine is usually caused by worn bearings or incorrect oil clearances.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!