Small O ring in Oil Filter
#12
As far as I understand the small o-ring makes a seal on that end of the filter for proper routing of the oil flow, if its missing the oil can bypass the filter. I'm sure someone has delved deeply into the Ecotec oiling system and can give an exact why and wherefore, but for now the simplest answer is that it needs to be there.
#13
As My wife says Iam a NUT anal ass I wasn't sure about the small O ring and went out and pulled the oil filter at 2 am to be sure things were right . I just didn't remeber seeing the small O ring when I changed it a few weeks ago . so I had to look only been drove a couple 100 miles so would not a been a big deal but all was right it was there now I can sleep .
As as been posted by many already the small o-ring has to seal off incoming oil, so the oil gets filtered.
#14
Ya I agree and it must need to be there or GM would not spend the 1 penny or less they cost on OEM filter
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07-14-2008 07:09 PM