727 question
Tip to tip clearance between rotor tips is one. Should be .005-.010" max. When you lay the outer gear in the pump housing you can check the clearance between the outer diameter of the outer gear to the housing. Should be .004-.008" max. Lastly is the end clearance. That's when you lay the gears in the housing and lay a short straight edge over them down in the groove the reaction shaft sits in and see how much clearance there is. Should be .0015-.003" max. Also make sure the pump body where the gears sit down in and the reaction shaft surface that meets the gears isn't scored.