[andrew15]

Hi Guys, here's the update:

- The engine is twin-plugged, so I removed the lower plugs and water poured out from #4.
- I changed the oil to take care of any water that got into the bottom end via the rings
- Hand cranked it and felt no resistance
- Put in new top and bottom plugs and started it up
- Car seems to be fine with no issues
- I'll perform a compression test and leakdown when I get back from holidays.

The culprit was a missing wingnut on the watershield cover - it left a 1mm gap which was apparently enough to let in copious amounts of water.

Thanks for all the help!