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Oil Filter Housing Gasket Stripped Bolt

635 Views 12 Replies 6 Participants Last post by  ede39
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A friend and I were going to change out the OFHG on his 2011 N51. The left lower bolt to the right of the mickey mouse flange ended up stripping after he decided to use an 8mm box wrench. He didn't want to take out the flange and ended up stripping the E10 bolt. Big regret as I told him to use an E10. The shortcut failed. Currently, he has sanded down the head to almost just the bolt shaft. When I tried to use an E10 in hopes of turning it loose, it seemed too tight. Here are the pictures of the bolt head and end of the thread. The first picture is the head. Looks like a battery. Can we use an extractor to drill it in and extract the bolt or take it to a shop? I'm just annoyed he took the shortcut route.
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Why not remove the other two bolts and see what you are left with. I would think since the head has been flattened the housing should come off. I don't recall if the housing itself is threaded. Does the replacement bolts have threads all the way up the shaft? They are aluminum bolts as I recall. They can easily be drilled out.

The flange is left on that E10. My friend had ground out the head but not the flange part. For now, he has decided to drill it out.
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