REFLECTOR: Franklin Fuel Pump

[Michael Watson]

John,

Before sending in your pump for repair, remove and clean the strainer in the
carburetor. be sure to safety wire in back in place.
Do you have a fuel filter before or after the engine pump?. if yes, replace
it. The reason the flow jumps to 5~20 GPH is because
the float is low in the carb bowl. when the electric pump is turned on, the
rush of fuel to fill the bowl causing the increase, after the
bowl is filled the flow will return to normal.

At Idle, my fuel flow is 3.5 ~ 4 GPH yours may be a little low. There is an
adjustment on the rear of the pump, loosen the nut and
turn the center screw out for 6.5 ~ 7 PSI. re-tighten the nut and your good
to go.



On Wed, Nov 24, 2010 at 3:17 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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-- 
Mike W.
1997 Velocity Elite RG
Franklin /IVO Electric CS
Dual GRT EFIS HX Synthetic Vision
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