Jeff;

 

Does the sediment bowl include a fine screen filter?  If so I’d take it out or replace with a coarser screen. Potential pressure drop (flow impediment) upstream of the hp pump is a vapor lock concern.

 

Al G

 

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Jeff Whaley
Sent: Wednesday, July 15, 2009 4:34 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Sediment bowls in EFI fuel systems

 

Any comments about sediment bowls in the EFI system – are they an asset or a liability?

Though my fuel is gravity-fed to the sediment bowl and the EFI pumps are after, is the flow-rate through the bowl exceeding its design/application intention?

I have heard that a sediment bowl is not mandatory as long as there is a drain at the lowest point in fuel system.

I ask because mine was leaking the other day at the seal between bowl and rubber gasket – tightened up the thumb screw and it seems to be okay – yes it was previously lock-wired, though maybe the thumb screw was not as tight as it is now.

 

Jeff (finally expecting to fly again tonight with cooling mods complete)