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2002 chevy trailblazer_lt_ext
12 Posts
Discussion Starter #1
I am currently in the process of doing a rebuild on my 02 4200. This is the first overhaul i have done on this engine family, but definitely not my first engine build. Are there any tips or tricks to look out for? Any info on setting the timing back up, setting up the valve train, or a page for torque values.

I stopped tonight because i was breaking main bolts. I guess i will have to drill them out. None of the head bolts broke though? I know i have spun either a main or rod bearing just have to find out which one.

Once i get the pistons out how should i check for cylinder sleeve failure, or should i just let my machinist worry about looking at that?:thx
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