Archive for March, 2015

First Time to Cut Open Used Oil Filters

March 7, 2015 1 comment

Saturday Mar 7, 2015

I recently bought an oil filter cutter to enable me to inspect the inside of my used oil filters. This is commonly done on aircraft to look for signs of excessive or premature engine wear as evidenced by metal particles in the filter. This photo shows the cutter on the first oil filter. It slices through the can with a rolling knife.


When you open it up you see this.


Then you pull out the filter and cut it free from the center mandrel and then you can open the pleats of the filter and look inside. The good news is I saw no metal particles I could detect. It is certain that some are there but they are too small to see with the naked eye. So far it seems like my engine break-in has gone well. No signs of problems and my oil consumption is running about 18 hours per quart which is really good for a Lycoming.


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