I missed one of the drain plugs last winter

[igotdoo]

So - Mercruiser 4.3 2002 model - with the 5 blue plastic plugs.

When I winterized it - I got the 4 plugs (2 on each side) and I totally missed the one in front - just off the water pump/hose assembly by the fuel/water filter.

I have run it twice now on muffs.... no water in the oil or pouring out into the bilge....

Whats the typical impact of water left in this area, and what are you actually draining?

 

[dmichaud2]

Re: I missed one of the drain plugs last winter

If any water that did get left in the block had room to expand due to most of the block being empty there is a pretty good chance you are fine.

I am not very familiar with the internal water paths in that block, but depending on the angle of the engine when you drained/stored it, there may not have been any water left even with that plug in place.