Mailing List lml@lancaironline.net Message #50262
From: <vtailjeff@aol.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] IVP boost pump cooling
Date: Sat, 31 Jan 2009 07:39:25 -0500
To: <lml@lancaironline.net>
Colyn,

My boost pump is on from start to finish --now has over 1200 hours. No insulation it or near it. It is under the co-pilot floorboard.

Jeff

Any IVP drivers
a) fly for extended periods with low boost on--
b) have the pump buried
c) did or didn't have problems with it?



-----Original Message-----
From: Colyn Case at earthlink <colyncase@earthlink.net>
To: lml@lancaironline.net
Sent: Thu, 29 Jan 2009 10:23 pm
Subject: [LML] IVP boost pump cooling

There's a FAA service difficulty report out on Dukes fuel pumps as installed in a DA40.
From the sounds of it the pump is in the engine compartment in this installation.
In a IVP it's typically on the firewall or on the floor on the co-pilot side.
I was about to put down some sound insulation and carpet over this but now wondering
if there could be a problem with heat.
 
Any IVP drivers
a) fly for extended periods with low boost on
b) have the pump buried
c) did or didn't have problems with it?
 
Colyn
 
 
--------------------------------------------------------
 
Diamond DA40F
Failed Electrical Fuel Pump
Before the next student’s flight, the electric fuel pump (Dukes p/n 5100-00-20 installed on a Lycoming O360A4M) was found inoperative. Inadequate cooling is believed to be the source of the malfunction. The submitter suggests providing ram air for proper cooling of the fuel pump and motor.
Nine pumps installed on four identical aircraft were discovered failed. Time in service ranged from 102.3 hours to 593.2 hours and averaged 317.2 hours since overhaul.
Part Total Time: Various.
 
=0 A
 
 
 
 

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