[diem]

So far so good guys.

The water pump isn't leaking. I'm not losing coolant and I'm not getting exhaust gases into the coolant, so I'm not sure it's a gasket sealing issue. It could be though. One thing I've noticed is when completely cold, I remove the cap from the tank and a good amount of air escapes and the coolant level rises about 1/2"

I just can't fathom that combustion gases are entering considering I couldn't get a positive reading with a block tester.