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Yeah, ain't it interest'n that tubing/metal can crack on long term cars! 200 '88

posted by  someone claiming to be JohnB on  Tue Oct 9 03:05 CST 2001 [RELATED]

The tubing IMHO is engineered with insufficient safety margin when they crack like that. Stess corrosion at the crystalline boundaries? The sucker was probably drawn too thin to begin with, then mandrel bent and anodized/coated to retard corrosion. Once the anti corrosion coating is gone, the corrosion begins and is accelerated at the bend stress.

It's a tough call engineering wise. Make everything bulletproof and the suspension gets heavy, the car ends up a tank, and no one buys it. Oops...that describes Volvo's experience with the 240 series. Just kidding!





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