912uls Oil In Exhaust
in 912 / 914 Technical Questions
7 years ago
2012 912ULS w/210 hrs total time running 93 Octane ethonal free.
I'm in the early troubleshooting stage.
Began after a normal oil/fuel filter and plug change. No contamination in any filters or magnet plug.
Engine ran rough at high RPM (above 3000). Mag drop ok.
Initial thought was fuel so pulled float Bowls. Bowls were perfectly clean. Noticed one float was sinking a little, weighed it at 5g, replaced it. Still ran rough at high RPM.
Pulled cowl again and noticed oil coming from the #1 cylinder exhaust. Pulled #1 cylinder plugs and they were wet with oil. Used an endoscope to look in the cylinder and detected oil bubbling up along the cylinder wall. Haven't done a differential compression test yet(bad gauge on a brand new E-2A).
Any ideas where to start?
Aaron
I'm in the early troubleshooting stage.
Began after a normal oil/fuel filter and plug change. No contamination in any filters or magnet plug.
Engine ran rough at high RPM (above 3000). Mag drop ok.
Initial thought was fuel so pulled float Bowls. Bowls were perfectly clean. Noticed one float was sinking a little, weighed it at 5g, replaced it. Still ran rough at high RPM.
Pulled cowl again and noticed oil coming from the #1 cylinder exhaust. Pulled #1 cylinder plugs and they were wet with oil. Used an endoscope to look in the cylinder and detected oil bubbling up along the cylinder wall. Haven't done a differential compression test yet(bad gauge on a brand new E-2A).
Any ideas where to start?
Aaron
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