I will attempt to fix it. I went to Home Depot and got some JB Weld and something called Super Glue All-purpose Permanent Patch that cures with light source http://superglue.supergluecorp.com/15296.html It is a fiberglass-reinforced polyester patch that you cut to the size you need and press where you need it applied, it is activated with sunlight or UV light and is ideal for pipes, metal, concrete, tanks, exhaust pipes, mufflers, and engine parts, and is watertight and durable.

I was thinking seeing as though I no longer have the chunk that broke off I could first apply a patch as mentioned to fill it in, followed by the JB weld, and lastly a coating of Seal-All sealant. That has to accomplish something for now. Probably down the road I will need the crankcase replaced.