Joined: Sep 2009
Posts: 4,697
Likes: 2,039
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Bikes: Masi, Giant TCR, Eisentraut (retired), Jamis Aurora Elite, Zullo, Cannondale, 84 & 93 Stumpjumpers, Waterford, Tern D8, Bianchi, Gunner Roadie, Serotta, Serotta Duette, was gifted a Diamond Back
1. it won't hurt to try to patch this as long as it is not at the bend to the stem.
2. use an air compressor that is on (like at the gas station) to inflate, the pressure should prevent any goo from going back up the pump.