Why your Mercruiser 4.3 freeze plug popped out
Dealing with a leaking or popped mercruiser 4.3 freeze plug is usually enough to ruin any weekend on the water, especially when you realize it's often a self-inflicted wound from a bad winterization job. If you've just opened up your engine hatch and found a small, circular piece of metal sitting in the bilge—or worse, a fountain of water spraying out of the side of your V6—you're likely dealing with a core plug issue. ...