Metal in Screen

**behindpropellers** · 05-18-2018, 10:10 AM

After installing an overhauled starter adapter and fuel pump in our IO-520A we are getting some brass in the filter. This is after approximately 5 hours of initial ground run setup for the fuel system and initial test flights. None of the metal particles are large, just very fine specks. When I check the sample with a magnet I didn't get hardly anything.

I'm sending the sample out for analysis. My plan is to run it for a few more hours on this new filter and oil and then check the filter again.

Looking for some advice from the Big Bore continental experts.

Tim

**PIPER J5.5** · 05-19-2018, 12:29 AM

Why on earth would you run a air cooled engine for 5 hours on the ground and plan on running a few more hours after that?

I have flown a turbo 210 for the last 20 years and I don’t like running them on the ground any longer than I have to.

**OLDCROWE** · 05-19-2018, 06:07 AM

Originally Posted by PIPER J5.5

Why on earth would you run a air cooled engine for 5 hours on the ground and plan on running a few more hours after that?

I have flown a turbo 210 for the last 20 years and I don’t like running them on the ground any longer than I have to.

Reading is fundamental... “and initial flight tests”