REFLECTOR: Franklin Fuel Pump

[W J Wilbeck]

45 PSI Wow!

 

I am pretty sure that if you are using a carburetor the MAX Fuel Pressure should be 7 PSI.

 

wj

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Brian Michalk
Sent: Wednesday, November 24, 2010 2:31 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Franklin Fuel Pump

 

Are you running the diaphragm pump, or the newer rotary vane pump?

If it's the rotary pump, then that will need to be sent in for repair.

I machined an adapter for a sprint racing fuel pump for my airplane.  The issue with adapting mine to anything stock, is you will need an external fuel pressure regulator.  I'm running 45PSI.

On 11/24/2010 2:17 PM, aminetech at bluefrog.com wrote: 

I think my fuel pump is going bad.  On several occasions, my engine has stalled at idle, both after landing and when taxiing for T/O when the engine is warm from a previous flight.  I notice that just before it stalls, my fuel flow indicates as little as 0.1 gph (normal idle is around 2 gph).  If I turn on the electric pump, the flow jumps to 5-20 gph for a second or two and then levels out at the ususal 2 gph (and it doesn't stall).  Is this something I can repair, or is it better to send it in for repair?  The older diaphram pump was replaced before I bought the plane.

 

Thanks,

 

John

 
 
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