If a primer pump failed, does it introduce a air leak into the fuel system/lift pump?

And if so, how can I seal the primer pump so it doesnt leak air until I get a new one?

I'm narrowing the list of the problems with this car, and I'm getting more and more excited every day.

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Java Developer/Linux SysAdmin

Current:
*1984 300D ~200K,1989 MR2 250K, 2012 Ford Fusion 4.5K (fiance's car to replace the uber-unsafe cavalier)
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Past: 1998 Chevy Cavalier ,2005 Saab 9-3 2.0T, 1996 Mazda Protege, 1974 Porsche 914 2.0, 1997 Land Rover Discovery 4.0L/5Speed, 1995 Jeep Wrangler