Well ive flown 600 hours on this set up in a savannah. So far so good.
Never really thought about the possibility of the mech pump starving the
electrical pumps but i see what youre saying. Hasnt happened so far.
Its a common set up here. My engine is a turbo 912 which i normally run at
33". There are folk here who run these at 37 or higher. They use the
same fuel set up.
It only needs one electrical pump btw. I will probably remove my second
pump in due course.
Will
On Jun 13, 2017 20:36, "Robert Borger" <rlborger@mac.com> wrote:
Will,
I can understand the principle. It is something to consider. The big
issue will be running the low pressure fuel line from between the
gascolator and electric pumps forward to the mechanical pump.
Blue skies & tailwinds,
Bob Borger
Europa XS Tri, Rotax 914, Airmaster C/S Prop (75 hrs).
Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
3705 Lynchburg Dr.
Corinth, TX 76208-5331
Cel: 817-992-1117 <(817)%20992-1117>
rlborger@mac.com
On Jun 13, 2017, at 7:22 AM, William Daniell <wdaniell.longport@gmail.com>
wrote:
Dear Bob
How about trying the Colombian set up. Essentially this is the 912 mech
pump with an electric boost pump with the pressure regulated by the rotax
regulator. The new mech pump will sustain 27-30".
See attached
Will
William Daniell
LONGPORT
+57 310 295 0744
On Mon, Jun 12, 2017 at 8:08 PM, Robert Borger <rlborger@mac.com> wrote:
>
> Fellow Europaphiles,
>
> For all you 914 owners who were not able to acquire one of the Billet
> mechanical fuel pumps, don=99t feel bad. My pump lasted about 100
hrs before
> developing a significant leak back into the gearbox and thence into the
> sump. It=99s quite a surprise when you burp the engine to check th
e oil
> level and you have to remove about a pint of stinky, fuel-contaminated oi
l
> from the reservoir.
>
> Since the unit is not supported I am returning to the two electrical pump
> configuration as per ROTAX installation instructions (914 Installation
> Manual Page 84). I have been collecting the bits and pieces of hardware
> and fuel injection hose and will spend tomorrow putting it all back as pe
r
> the manual.
>
> Looking forward too seeing Y=99all in about 6 weeks at AirVenture!
>
> Blue skies & tailwinds,
> Bob Borger
> Europa XS Tri, Rotax 914, Airmaster C/S Prop (75 hrs).
> Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
> 3705 Lynchburg Dr.
> Corinth, TX 76208-5331
> Cel: 817-992-1117 <(817)%20992-1117>
> rlborger@mac.com
> ========================
===========
> pa-List" rel="noreferrer" target="_blank">http://www.matronics.com/
> <http://www.matronics.com/Navigator?Europa-List>Navigator?Europa-List
> <http://www.matronics.com/Navigator?Europa-List>
> ========================
===========
> FORUMS -
> eferrer" target="_blank">http://forums.matronics.com
> ========================
===========
> WIKI -
> errer" target="_blank">http://wiki.matronics.com
> ========================
===========
> b Site -
> -Matt Dralle, List Admin.
> rel="noreferrer" target="_blank">http://www.matronics.com/
> <http://www.matronics.com/contribution>contribution
> <http://www.matronics.com/contribution>
> ========================
===========
>
>
<HJ460 fuel system - Sheet1.pdf>
|