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Old 05-27-2010, 07:57 AM
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Fudman Fudman is offline
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Location: Sudbury, MA
 
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Mein Auto: '02 530i Sport auto
Quote:
Originally Posted by bluebee View Post
PS: How dangerous would that bolt segment be in my oil pan?
Can I just leave it there in the back of the oil pan drain hole?

I am not sure if anyone really knows the answers as this is a very unusual occurance. Here is what I think (which could be wrong):

1. If the bolt segment should come loose, it could conceivably be sucked into your oil pump, damaging the pump. However, the size of the bolt segment may be too big to cause damage to the pump. You could conceivably leave your magnet in place to help keep the bolt segment from straying, if it comes loose. However, there is lots of uncertainty regarding this risk and it is better to remove the bolt segment and eliminate all risk since failure of the lubrication system can be catastrophic to the engine.

2. With the bolt segment left in place, you will probably not be able to seat the new bolt properly so that the bolt gasket is engaged and the sump will then leak oil. Hence, the suggestion to use teflon tape to help seal the bolt threads (although this is a temporary solution). I do not think leaving the bolt in place can be part of a long term solution.
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