[george kujanski]

Make sure that your measurement is done with the housing and the pump body in the final assembled position relative to each other. .2" is still a lot.

On a 11 bolt pump, for example, the plate-to-vane clearance can be as small as the gasket thickness for optimum performance, in fact that's how some members did theirs; adjusted the gap for contact without a gasket, then assembled with a gasket.

George

[mhgamber]

Pulled the pump off my 65 GTO, used a 5 lb sledge to pound plate into a hay bale to spread the blows out, got it to a .1 without gasket. Reinstalled and idle temp went from 210 down to 160, sat for 30 minutes rock solid, drove it it about 75-80 mph for 30 min and temp only reached 170 max while idling in a parking lot for 10 minutes. Drove home very happy! Great mod, thanks a lot George.
Mike

[P@blo]

A sledge hammer on the divider plate !! I used a little auto body hammer and just needed to lightly tap it evenly down but see where the bale of hay helped. The mod worked the same for me but I still owe George the two dollar fee and have decided I will put it into a high yield savings account so he can retire when he chooses.