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Old 09-02-2020, 03:48 PM   #114
DarkSunrise
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Quote:
Originally Posted by Tcoat View Post
The failure was NOT the fault of the parts manufacturer providing false results nor using bad materials!


https://static.nhtsa.gov/odi/rcl/201...8V772-0340.pdf
The document that you linked is really interesting, particularly this part:

Quote:
As a result, it was found that due to the improper design of the valve train, stress generated exceeded the design condition. The excessive stress combined with the dispersion of impurity within the composition of the spring material under normal course of production may cause the valve spring concern to fracture from fatigue.
Turns out this was Subaru/Toyota’s mistake all along. This reinforces even more that they should take care of all the owners with failed engines. If it wasn’t for their direct screw up, these owners’ engines would never have needed to be repaired. The risk that a tech would botch the repair job should be borne primarily by the dealership, but secondarily by Subaru/Toyota, and in no event by the owner. Once the dealership fails to honor the mistake, the onus falls on Toyota/Subaru as the cause of the repair to either set their dealership straight and/or goodwill the repair. Subaru/Toyota can’t absolve themselves of their responsibility in this mess.
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