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Andrew Martin wrote:
Whats the real reason why a flex plate would crack instead of flex? I’d find it hard to believe its from gearbox misalignment, Tracy’s tolerances and fit seem pretty tight to me, Is it possible the culprit is the starter motor?
Theory 1) There was an indication that some parts had started to get loose. Tolerances, alignments, and fit all go out the window once things get loose and start moving around.
Theory 2) Tracy used a rubber isolator between the adapter plate and the flexplate. Under high load, there would be a bending force on the connecting bolt that would try to twist the flex plate at the bolt holes.
Looking at the way the flexplate was split between all the bolt holes, it seems feasible to me (from my position far, far away) that the first could have led to the second.
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