Quote:
Originally Posted by Tecnniqe
Kinda sounds like it since it seems to rather happen rather quick or not at all in the cases I’ve read about. Maybe it’s just random, scary none the less but my issue is with insurance and warranty claims should I apply one of the fixes and something would happen with the drivetrain or it spinning of whatever and them claiming I’ve modified it so it’s not covered anymore.
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Clearly not a "manufacturing" issue, it is how it was designed.
If you look at the crank hub design, it is apparent that it was engineered as a "mechanical fuse", intended to slip in the advent the valvetrain is loaded beyond a certain threshold. If the engineers did not want it to slip, they would have made a splined design.
An aftermarket tune can definitely alter the acceleration characteristics of the engine making it more prone to SCH failures.