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The Prior owner claimed this engine was rebuilt 13 years and ~10,000 miles ago. I was always skeptic as no paper work was available. This weekend I replaced the oil pan gasket and found sludge in the pan (half a cup). Here are some pictures of the pistons and such. I'm not an engine builder but to my eyes there seems to be way too much varnish on the surfaces for engine that supposedly has 10-12k on it.
what do you guys think? How fast is sludge form? How fast does varnish form on the internal surfaces?
Take a look at a bearing that will tell some. Thrust and no 1 if it were me
Could have been but most of those stories are bs. No paper, or cant remember. Its usually rebuild via spray paint.
Was this engine rebuilt???
