Carb leaking fuel on 2/4 side
in 912 / 914 Technical Questions
8 years ago
I have a newly overhauled set or carbs and have been having hell with them. Initial problem was a rough running engine above about 28 manifold pressure. Replaced Rotax gasket with a cork gasket everything ran fine. Installed new Rotax gasket and runs fine but I see fuel leaking above 28 manifold pressure. Initially looked to be coming from the throttle butterfly arm. Had a local Rotax mechanic redo the butterfly and tested the engine again. Still seeing traces of a fuel leak coming from somewhere but only visible when the engine is running near top speed. Is there a way to pressurize the carburetor in order to look for what I think is still a pressure leak coming from somewhere?
Attached are a couple pictures where you can see the traces of fuel after just five minutes of running the engine near full power on the ground.
I am awaiting a new o-ring for the attachment nut to see if that is the source. The floats and float bowls are all new??? Anyone hear of issues with new bowls??
Need ideas before I see if Lockwood will warranty the rebuild.
Rich
N262AE
Attached are a couple pictures where you can see the traces of fuel after just five minutes of running the engine near full power on the ground.
I am awaiting a new o-ring for the attachment nut to see if that is the source. The floats and float bowls are all new??? Anyone hear of issues with new bowls??
Need ideas before I see if Lockwood will warranty the rebuild.
Rich
N262AE
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