Some of you may remember when I did a "Guess the Mystery Part" contest on my website. At that time, I thought that the part that was found in my engine was from when the engine was cast. This little piece of epoxy resulted on the failure of my engine at about 30,000 miles. I now know better. <<I have posted pictures in the vault under the Engine_Block folder relating to this post>> If you look at the top of the engine block, there are 4 "holes" that can accumulate a bunch of liquid and gunk. This stuff can erode the metal that the engine block is made out of. Sometime during the life of my car, this happened. The "engine block" and "bad block" pictures show where these areas are. After the engine had developed a hole, someone filled the hole with epoxy (see epoxy picture). this hole leads down into the main oil reservoir (correct me if I am wrong) this epoxy stopped the oil from leaking out of the car, but had the adverse side affect of at least partially blocking the flow of oil to the engine. . .hence, the parts will wear out and break down much more quickly than normal. Take the time to check your engine (or have someone else check it) to make sure that your engine block is clean and free of any other "gunk" that could eat through the metal. . .DMC Joe, any advice here? I have also posted a picture (good_block) of my new (well, new for me) engine block, and although it is dirty, the metal is in good condition with no pits or corrosion evident. e-mail me if you have any questions or comments. Michael Babb michael@xxxx Total cost because someone filled instead of replaced: $6000 Engine rebuild: $4500 New block and additional work: $1500 Total for just new engine block and labor: $1500 amount saved if it had been done correctly the first time: $4500 - ouch!