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Old 06-12-2012, 07:58 PM   #5 (permalink)
modme
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Join Date: Mar 2009
Location: NY
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Drives: G37
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Mine was worse than the OP's. When I placed the flange on a flat surface, I can rock it back and forth like a rocking chair.

The flange must be flat period. Any unevenness will cause a leak. When the bolt hole area has a gap, torquing the bolt would cause another area to raise up.

The gasket is only for microscopic imperfections that cannot be felt or seen. A gasket wont be able to seal a big gap like that.
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