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Corbett/Billet fuel pump for Rotax 914

 
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rlborger(at)mac.com
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PostPosted: Mon Jun 12, 2017 5:09 pm    Post subject: Corbett/Billet fuel pump for Rotax 914 Reply with quote
Fellow Europaphiles,

For all you 914 owners who were not able to acquire one of the Billet mechanical fuel pumps, don’t feel bad. My pump lasted about 100 hrs before developing a significant leak back into the gearbox and thence into the sump. It’s quite a surprise when you burp the engine to check the oil level and you have to remove about a pint of stinky, fuel-contaminated oil 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 per the manual.

Looking forward too seeing Y’all 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
rlborger(at)mac.com

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wdaniell.longport(at)gmai
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PostPosted: Tue Jun 13, 2017 4:23 am    Post subject: Corbett/Billet fuel pump for Rotax 914 Reply with quote
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(at)mac.com (rlborger(at)mac.com)> wrote:
Quote:
--> Europa-List message posted by: Robert Borger <rlborger(at)mac.com (rlborger(at)mac.com)>

Fellow Europaphiles,

For all you 914 owners who were not able to acquire one of the Billet mechanical fuel pumps, don’t feel bad.  My pump lasted about 100 hrs before developing a significant leak back into the gearbox and thence into the sump.  It’s quite a surprise when you burp the engine to check the oil level and you have to remove about a pint of stinky, fuel-contaminated oil 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 per the manual.

Looking forward too seeing Y’all 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
rlborger(at)mac.com (rlborger(at)mac.com)
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HJ460_fuel_system_-_Sheet1.pdf
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rlborger(at)mac.com
Guest
PostPosted: Tue Jun 13, 2017 5:33 pm    Post subject: Corbett/Billet fuel pump for Rotax 914 Reply with quote
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 BorgerEuropa XS Tri, Rotax 914, Airmaster C/S Prop (75 hrs).Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP3705 Lynchburg Dr.Corinth, TX 76208-5331Cel: 817-992-1117rlborger(at)mac.com (rlborger(at)mac.com)

On Jun 13, 2017, at 7:22 AM, William Daniell <wdaniell.longport(at)gmail.com (wdaniell.longport(at)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(at)mac.com (rlborger(at)mac.com)> wrote:
Quote:
--> Europa-List message posted by: Robert Borger <rlborger(at)mac.com (rlborger(at)mac.com)>Fellow Europaphiles,For all you 914 owners who were not able to acquire one of the Billet mechanical fuel pumps, don’t feel bad. My pump lasted about 100 hrs before developing a significant leak back into the gearbox and thence into the sump. It’s quite a surprise when you burp the engine to check the oil level and you have to remove about a pint of stinky, fuel-contaminated oil 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 per the manual.Looking forward too seeing Y’all in about 6 weeks at AirVenture!Blue skies & tailwinds,Bob BorgerEuropa XS Tri, Rotax 914, Airmaster C/S Prop (75 hrs).Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP3705 Lynchburg Dr.Corinth, TX 76208-5331Cel: 817-992-1117rlborger(at)mac.com (rlborger(at)mac.com)====================================pa-List" rel="noreferrer" target="_blank">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/contribution====================================


<HJ460 fuel system - Sheet1.pdf>

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wdaniell.longport(at)gmai
Guest
PostPosted: Tue Jun 13, 2017 7:20 pm    Post subject: Corbett/Billet fuel pump for Rotax 914 Reply with quote
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(at)mac.com (rlborger(at)mac.com)> wrote:
Quote:
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: [url=tel:(817)%20992-1117]817-992-1117[/url]
rlborger(at)mac.com (rlborger(at)mac.com)


On Jun 13, 2017, at 7:22 AM, William Daniell <wdaniell.longport(at)gmail.com (wdaniell.longport(at)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(at)mac.com (rlborger(at)mac.com)> wrote:

Quote:
--> Europa-List message posted by: Robert Borger <rlborger(at)mac.com (rlborger(at)mac.com)>

Fellow Europaphiles,

For all you 914 owners who were not able to acquire one of the Billet mechanical fuel pumps, don’t feel bad.  My pump lasted about 100 hrs before developing a significant leak back into the gearbox and thence into the sump.  It’s quite a surprise when you burp the engine to check the oil level and you have to remove about a pint of stinky, fuel-contaminated oil 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 per the manual.

Looking forward too seeing Y’all 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: [url=tel:(817)%20992-1117]817-992-1117[/url]
rlborger(at)mac.com (rlborger(at)mac.com)

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====================================
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/contribution
====================================


<HJ460 fuel system - Sheet1.pdf>




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