How many freeze plugs in a 4.3

The plug isn't welded in. It can pop out if the frozen, expanding coolant pushes on it. Place a large pan under the radiator and take out the drain plug with a wrench.

Drain the coolant into the pan, then place the pan of coolant to one side. Replace the drain plug. Hit the side of the old freeze plug with the drift and the hammer. The old plug will swivel in the hole. Take it out with the pliers. Coat the bearing surface of the new freeze plug with sealant. If the manufacturer of the sealant recommends a waiting period while the sealant sets or cures, wait until that time has passed.

Press the new freeze plug into the hole and seat it with gentle blows of the hammer. Put the sealer head inside the new freeze plug. In David Marsh began writing a column in the "Idaho Falls Post-Register" titled "Good Things," which presented restaurant reviews, sports analysis and movie criticism. Besides newspaper columns, Marsh researched police procedures for the Federal government. How to Change the Freeze Plug on a 4. Log in. Install the app.

For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Mercruiser V-6 4. Thread starter chrisv Start date Jun 17, Joined Jun 17, Messages 2. Hello, When I tried starting my boat after a prolonged storage I found water leaking to the bilge and two freeze plugs fallen in the bilge. I think some people refer to them as core plugs too.

I want to try to put them back them while the engine is in place i. I was actually able to replace one as I found the open hole it fell out of.

It was on the starboard side. But for the life of me I cannot find where the other one fell out of. I would like to see if I can pop it back in or I need to to lift the engine. By the way, I know that popped freeze plugs are usually a sign of a cracked case but I checked the oil and there is no milkiness.

So cross fingers it seems alright. Joined May 19, Messages 25, Re: Mercruiser V-6 4. Core plugs are sometimes referred to incorrectly as freeze plugs There are usually 3 core plugs along each side of the engine The reason they popped out is usually because there was water still in the block during winter, which froze and expanded. If you don't have a crack in the block somewhere consider yourself very lucky