---
i also had problems with the EI fuel flow. I had much higher than
normal flow indication. this dropped when the elec pump was turned
on. What i found was that the elec pump was leaking back thru the
pump. I installed a new pump. With the Fuel flow transducer
installed per EI instructions I now read within 0.1 GHP when only on
mech pump. This was verified several times on X-country's. When you
turn on the elec pump indicated flow decreases as you would expect
with the transducer in the line from the mech pump to the carb. i
am now very pleased with the fuel flow. also i now know how a
normal elec pump sounds!

Mike Dawson





In musketeermail@yahoogroups.com, "Kerry Muller" <kmuller@...>
wrote:
>
> I have an issue with a Electronics International FP-5L installed
in my
> Sundowner. Since I've owned it, whenever I put on the boost pump
the
> flow would go to zero and stay there until I turned off the boost
pump.
>
> While in annual I asked the mechanic to check out the installation
and
> it turns out it was installed way wrong. But this has turned up
what
> looks like a problem with installing an FP-5 in any O-360
Sundowner.
>
> The 2 fuel lines from the engine pump and the boost pump meet at
two
> seperate connections on the carborator. EI tells me that to
measure
> correct flow on either pump, the EI transducer needs to be between
a
> "T" connection joining the two lines - and the carb. Can't do
that on
> this engine... unless I seriously modify the fuel flow plumbing and
> get a field approval (I guess). I've talked to EI a few times on
this
> and their position is to just install a "T" connection ahead of the
> carb.
>
> The previous owner (and his mechanic?) seemed to be confused by
this
> as well. Their solution was to use the EI setup for a fuel
injected
> or pressure carb that has a return line. This kit comes with 2
> transducers and a computer module, but the second transducer is
> supposed to go on the return line and the computer subtracts out
it's
> flow to arrive at a net amount going to the carb. I guess they
> thought the second tranducer could be used for the second line but
it
> can't. In my case, once the boost pump went on - it subtracted out
> that lines flow and I ended up with zero flow on the gauge.
>
> So at this point my mechanic wants to take out the computer and
> tranducer on the boost side going back to how a typical carb
install
> should be (just the one transducer going straight to the gauge),
but
> we both agree that once the boost pump goes on, the remaining
> tranducer on the other side will/might register some flow but it
> probably won't be accurate.
>
> My question to anyone who has read this far and has one of these
> installed - do you get accurate flow with the boost pump on? Do you
> know if you ran into any of the issues I brought up?
>
> Thanks
> Kerry
> 6629R
>






Join BAC today and be a part of the ONLY Type Club for the Musketeer series!

www.beechaeroclub.org


Yahoo! Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/musketeermail/

<*> To unsubscribe from this group, send an email to:
musketeermail-unsubscribe@yahoogroups.com

<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/