Mud in my Veins
Join Date: Sep 1999
Location: Southern Indiana
Thanked 1 Time in 1 Post
Re: AMC 360 freeze plugs?
Drill a hole in the old plug.
Screw a large screw into it, and yank it out. I use a slide hammer. Don't worry about being centered, you'll probably strip more than one hole out.
Clean the block surfaces as clean as you can get them.
Use a good sealer.
Use BRASS plugs if you can.
Brass expands and contracts closer to the rate of cast iron that steel does, and they seal better too.
There are pieces of hard plastic made to drive in core plugs with, or if you insist, buy a cheap 1/2" drive extension, and use a socket that fits snugly into the core plug.
A heavy wooden dowel rod works too.
Leave the sealer set up about 12 hours (I know what the directions say, but leave it anyway...) and you should be ready to fill the thing with water or anti-freeze mix...
So many cats, so few recipes...