+1
Take the time to pull the pump and add a drain to allow easier changing of gear oil in pump.

Again, is it the norm for fuel pump to bleed gas into sea pump oil or is it a sign of a bad fuel pump.

I don't think that is the intended design, but it seems to be norm. I replaced my sea pumps about a month ago and all three had gas in the oil.

Yes it's normal, happens to everyone. It's just a chitty design. On my old boat I put new fuel pumps on and after one summer, both had gas mixed in the oil. Just change it at least once a year and you will be fine.

Ok thanks.
Mine puked the oil out the other day, the pump feels ok but it looks like the front seal popped out of housing. Seems odd the seal would come out. I need to tear it apart for a closer look.

It's my feeling that some leakage is inherent to the design and the best solution is being able to change the gear oil regularly/easily which is why I added the drains to the sea pump housing.

When changing oil in sea water pumps what is everyone using for oil?

Mercury High Performance gear lube. that is what the maintenance manual calls for.

Though I suspect engine oil would work just as well, that's what lubes the pump foot when it's attached to the engine block.

I use straight 2 stroke oil as it's made to be diluted with gas. Seems to work great.