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As some of you know, I've replaced the heads and done the 3400 head swap on the 3100 block on my wagon. It had a blown head gasket when I got it, and after replacing every gasket in the upper engine, and many parts, I started it up only to find it blows more white smoke smelling of coolant than it did before I pulled the old heads.
A friend of mine asked me how clean I got the mating surface on the block, and the answer was that I couldn't get everything off with a razor bade but got it pretty good. He says that "good" isn't enought, it needs to be practically a mirror finish. He said that even buildup as thick as a piece of paper will allow coolant to slide under the gasket into the cylinders.
It's blowing huge clouds of white smoke when revved, almost enough to alert the local fire department. Can even paper thin buildup on the block mating surface cause that much coolant to get in, or could it be something more serious like an invisible water jacket crack?
The 3100 doesn't appear to be sleeved, is it?
A friend of mine asked me how clean I got the mating surface on the block, and the answer was that I couldn't get everything off with a razor bade but got it pretty good. He says that "good" isn't enought, it needs to be practically a mirror finish. He said that even buildup as thick as a piece of paper will allow coolant to slide under the gasket into the cylinders.
It's blowing huge clouds of white smoke when revved, almost enough to alert the local fire department. Can even paper thin buildup on the block mating surface cause that much coolant to get in, or could it be something more serious like an invisible water jacket crack?
The 3100 doesn't appear to be sleeved, is it?
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