The original flexplate suffering from "ovalized torque converter bolt holes allowing noise to be generated"
theory may be wrong. After sleeping on this I took a fresh look at the video screen snap that made
me wonder:
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I was expecting a perfect circle here, like what we see at the flexplate to crank bolt holes?
To prove/disprove the 'enlongated hole from wear' theory, I then took a close look at the
brand new GM flexplate. From here it looks like (4) of the 6 torque converter bolt holes
are manufactured horizontally oval shaped, while the remaining (2) holes are vertically oval
shaped?
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I'm assuming that these torque converter bolt holes are made this way in order to allow
for necessary manufacturing tolerances between the torque converter and the flexplate?
Obviously if I'm wrong then I'm hoping that a Subject Matter Expert will step in and
clarify all this?
So after giving the new flexplate close scrutiny, I'm thinking that the new flexplate
isn't going to make a dramatic difference in the quantity of noise in the vicinity?
At this point I have to step aside and let the flexplate/torque converter/transmission
gurus take the helm.
This is a tough one...