Stump the experts...

So...I'm tearing apart my engine getting ready for a rebuild. Got it all apart and am inspecting the block, when something catches my eye that looks unusual. With the block in the upright position on the engine stand, I can see into the holes in the water jacket between cylinders 2 and 3, a loose piece of metal just kinda free floating in there. It's maybe the thickness of a welding rod, and shaped like a square with one other piece running accross. What the heck is that? It's totally loose, with no way out, and no way in?? Is this some piece left over from the original casting? First one to answer can have a glass of my own homebrew. You'll have to come over here to get it though, it doesn't ship very well.

Rick

You found the remains of a chaplet...a support for a sand core to hold it in place until the metal was poured. They are often left in place after the shake-out process. Part of it was surrounded by molten iron and is part of your block.

George Willer