I was reading through the "water torture" thread (
http://forums.turbobricks.com/showthread.php?t=35053&page=4) , and as I was reading I could only think about the cars I've had and the horror stories from blown head gaskets.
Basically how it goes is when the headgasket goes, water and coolant mix with the oil, which then makes its way into the bearings, being that water and oil don't mix the water sits, and as a poor lubricant wears out the bearings, killing them, and then the engine throws a rod and dies.
sk8daysaweek wrote at the end of the water torture thread:
I did this two days ago to my 71' 145 with great initial results. I had improved accel, better throttle response, noticeably more power, and a little less detonation. I revved the crap out of it and burned it all out of the system and drove it for a good 30 - 45 minutes afterwards. I parked it for a day and today when I started it up I heard this terrible rattling noise, I can't tell where the hell it's coming from. Is it normal for sea foam to kill cars? Any thoughts as to what it might be?
edit: It sounds really bad, like something is terribly wrong.
Sounds like the beginnings of the stories I've read.
Now I'm not a mechanic, and I've never done this to a car, but I cant for the life of me reason why one would willingly put water in the oil. I don't know about Seafoam, if its designed to mix well and burn off, sounds good to me, but I cant think that water would be something that I would want in an engine. Even if the water boils and steams, it's in a closed system, and will condense once the engine cools. Not to mention that when you drain the oil from an engine its nigh impossible to get every drop of liquid out of it, so by the same reasoning the water would still likely remain as well.
Granted the recommendation for an immediate oil change is probably part of the longevity of some engines that this is used on but I have to ask, has anyone suffered any mechanical problems after doing this?