I'm rebuilding these and I'm not sure if I should try to return the tube to perfectly straight as much as possible or if I run the risk of making it unusable if I make the tube go out of round - I've gotten a tiny bit of bend out of it with a mallet.
How do I
A. test to see if it flows / seals properly or at least opens and closes as it should and
B. if it should be repaired, what's a good method?
Thanks
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