no the clutch cover doesn't compete any seal. there is a vent tube at the top of the trans that lets out any moisture and excess oil in case of an overfill so there is no pressure in the trans. what i was trying to tell you was that if you are still leaking out the 7psi after 5 to 10 minutes and there is no leak outside or on either oilseals on the crank you are probably leaking between the case halves.