So after fiddling about with the engine and getting it so it would probably move the boat, I decided to take a trip up to the marina to get diesel, gas and water. I was also going to take a broken-down friend who wanted to empty his toilet and chuck some rubbish and pick up some water as well. He went to get all his stuff ready, and I went to sort out the boat.
I’m going to blame the midday sun, but on enthusiastically remembering that I should check whether the radiator was full or not before setting off as the water pump has been leaking, I leaned over and managed to pour almost a whole litre of water into the oil tank. Oh. Great. Wow. What an error.
I hadn’t turned the engine on, so I was really hopeful that it would be easy to sort out. I ignored my friends advice to not bother and just turn the engine on and made a shameful, shameful, ashamed phone call to my uncle to admit to my mistake and ask advice. He laughed, told me it would be fine to drain it, and told me that he’s known mechanics with years experience to do it too (I think that was a lie, but I appreciate it anyway!).
So came the big oil change that I’ve been meaning to do since I got the boat, but haven’t seeing as I didn’t want to waste a whole engines worth of oil that might be fine anyway. I pumped all of the water and oil using the handy pump that was attached to the sump.
Then took the pump off to drain the very last bits out as I figured that the water would be at the bottom.
Weirdly I got 5 litres of liquid out, but could only put in 3.5 litres till the dip stick said it was over full. The oil capacity in the manual is stated as 5.1 litres. Oh well, another mystery.