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Pump has 1 o-ring on the MC shaft and 2 o-rings on the brass insert in the pump body.With that low time it should not need a complete OH, repair would be ok if less than 10 year old. 10 year is TCM recommendation.
Gene Martin
LNC2/320
----- Original Message ----- From: "paul miller" <paul@tbm700.com>
To: <lml@lancaironline.net>
Sent: Wednesday, June 08, 2011 7:25 AM
Subject: [LML] io550 fuel pump leak
I just got the aircraft back from the annual and after my trip this past weekend a ton of blue staining exists below the fuel pump. I pulled throttle back and mixture back to cutoff and turned boost pump on low. A steady dribble of fuel pours out of the mixture shaft as it enters the body of the pump. A few seconds results in a 6 inch pool of fuel on the floor.
I'm assuming a seal has failed. Any thoughts as I contemplate a repair/replacement?
Paul
Legacy 430 hours TTSN Factory new
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