Matt, I doubt you need yet another guy telling you not to touch the saw, but here goes DO NOT FIX THE SAW!
I have had similar situation with other products and went ahead and band-aided them to get me by, and have always regretted it after the "emergency" was past. My luck would go something like this:
1) Put seal-all or some other goop on saw.
2) leak seems fixed
3) Go to cut wood
4) Saw starts to leak
5) Violently curse the lack of quality control these days and vow to give dealer a good reaming when I get done cutting.
6) continue to cut wood mumbling under my breath the whole time.
7) Saw catches on fire ruining the housing and any chance of any dealer taking me seriously.
8) Take ruined saw and the 3 logs I got cut home
9) Get home to have wife say, "Why didn't you borrow your dads (or brothers or friends etc... ) saw? You know they will never take that one back now."
Save yourself the headache. Leave it alone.
My 2 cents,
Steve