Mailing List flyrotary@lancaironline.net Message #48147
From: John <downing.j@sbcglobal.net>
Subject: cooling
Date: Tue, 15 Sep 2009 20:44:35 -0400
To: <flyrotary@lancaironline.net>

Today I ran the plane with the cowling on and I had it tied down. 
OAT      80
WT       220  and climbing
OilT      195
MP         28
RPM    5000
After about 4 minutes the water and oil temps started to climb and the engine started missing.
 
2 questions - will these temperatures stabilize with the plane in motion and or climbing out.
                    will the NACA duct in it's present location at the rear  of the cowling cool the fuel pump.  Enclosed are two pictures of the pump enclosure and the NACA duct.  The NACA duct has a 1 inch tube going down into the pump enclosure.  The engine ran ok when I switched it to carburetion.  The fuel pump line was hot.  It ran fine on the FI this evening as it had cooled and I had the cowling off.  JohnD
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