Today's Message Index:
----------------------
1. 03:26 AM - Re: Rotax 914 Fuel Pumps (bmoorhouse)
2. 06:02 AM - Re: Re: Rotax 914 Fuel Pumps (Robert Borger)
3. 01:34 PM - Re: Re: Rotax 914 Fuel Pumps (Pete Christensen)
Message 1
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| Subject: | Re: Rotax 914 Fuel Pumps |
rlborger(at)mac.com wrote:
> Barry,
>
> I'm in the US and working on the installation of a mechanical fuel
> pump on my 914. You can see pics of the pump and regulator on my site
> on EuropaOwners.org. The pump is capable of much more pressure and
> volume than necessary for the 914 which is the reason for a second
> regulator. It drops the pressure down to 25 pounds for the Rotax
> regulator to handle. Once I get all the plumbing issues worked out
> I'llbe posting more information. If it all works as planned, you
> folks in the UK can begin your own approval processes.
>
> Regards,
> Bob Borger
>
> Sent from my iPhone
>
Thanks for the info Bob. Where does the mechanical pump fit on the 914?
I have heard of some (quite complex) solutions involving backup batteries to drive
the existing electrical pumps but, to me, it would appear that this just adds
a heck of lot more complexity into the circuitry (further potential failure
points) without solving the core issue.
Mind you I have never actually heard of a single case where an electrical failure
actually caused a fuel starvation problem, so maybe this is a solution to a
problem that doesn't really exist, except in the most rare circumstances.
I do not have sleepless nights worrying about this as 99% of my flying is in areas
where I could carry out a forced landing with a good chance of success (I
hope those are not "famous last words"), and there are other potential failures
that are far more likely than a total loss of all electrical power.
It was just that if there were some accepted and certificated way of doing this
at reasonable cost it would be worth considering.
I look forward to seeing how you get on with your idea.
--------
_______________
Barry Moorhouse
G-JHYS Trigear XS
Rotax 914 UL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=293610#293610
Message 2
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| Subject: | Re: Rotax 914 Fuel Pumps |
Hello Barry,
The Billet pump bolts onto the same location as the 912 mechanical
pump, on the starboard side of the gearbox.
Right now, I'm waiting on parts. I have a spacer gasket on order from
Lockwood but Rotax is changing the part and old stock is gone and new
stock has not yet arrived.
I have some additional pics to post explaining things when I return
home from travel.
I'll let the list know when it's all working.
Best regards,
Bob Borger
Sent from my iPhone
On Apr 9, 2010, at 6:25, bmoorhouse <barrymoorhouse@btinternet.com>
wrote:
> >
>
>
> Thanks for the info Bob. Where does the mechanical pump fit on the
> 914?
> I have heard of some (quite complex) solutions involving backup
> batteries to drive the existing electrical pumps but, to me, it
> would appear that this just adds a heck of lot more complexity into
> the circuitry (further potential failure points) without solving the
> core issue.
>
> Mind you I have never actually heard of a single case where an
> electrical failure actually caused a fuel starvation problem, so
> maybe this is a solution to a problem that doesn't really exist,
> except in the most rare circumstances.
>
> I do not have sleepless nights worrying about this as 99% of my
> flying is in areas where I could carry out a forced landing with a
> good chance of success (I hope those are not "famous last words"),
> and there are other potential failures that are far more likely than
> a total loss of all electrical power.
>
> It was just that if there were some accepted and certificated way of
> doing this at reasonable cost it would be worth considering.
>
> I look forward to seeing how you get on with your idea.
>
> --------
> _______________
> Barry Moorhouse
> G-JHYS Trigear XS
> Rotax 914 UL
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=293610#293610
>
>
Message 3
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| Subject: | Re: Rotax 914 Fuel Pumps |
Just bought a 912 fuel pump from leading edge airfoils last week when
Lockwood was out of stock. Try them.
Pete
Kitfox III, 912
----- Original Message -----
From: "Robert Borger" <rlborger@mac.com>
Sent: Friday, April 09, 2010 8:02 AM
Subject: Re: RotaxEngines-List: Re: Rotax 914 Fuel Pumps
>
> Hello Barry,
>
> The Billet pump bolts onto the same location as the 912 mechanical pump,
> on the starboard side of the gearbox.
>
> Right now, I'm waiting on parts. I have a spacer gasket on order from
> Lockwood but Rotax is changing the part and old stock is gone and new
> stock has not yet arrived.
>
> I have some additional pics to post explaining things when I return home
> from travel.
>
> I'll let the list know when it's all working.
>
> Best regards,
> Bob Borger
>
> Sent from my iPhone
>
> On Apr 9, 2010, at 6:25, bmoorhouse <barrymoorhouse@btinternet.com>
> wrote:
>
>> <barrymoorhouse@btinternet.com
>> >
>>
>>
>> Thanks for the info Bob. Where does the mechanical pump fit on the 914?
>> I have heard of some (quite complex) solutions involving backup
>> batteries to drive the existing electrical pumps but, to me, it would
>> appear that this just adds a heck of lot more complexity into the
>> circuitry (further potential failure points) without solving the core
>> issue.
>>
>> Mind you I have never actually heard of a single case where an
>> electrical failure actually caused a fuel starvation problem, so maybe
>> this is a solution to a problem that doesn't really exist, except in the
>> most rare circumstances.
>>
>> I do not have sleepless nights worrying about this as 99% of my flying
>> is in areas where I could carry out a forced landing with a good chance
>> of success (I hope those are not "famous last words"), and there are
>> other potential failures that are far more likely than a total loss of
>> all electrical power.
>>
>> It was just that if there were some accepted and certificated way of
>> doing this at reasonable cost it would be worth considering.
>>
>> I look forward to seeing how you get on with your idea.
>>
>> --------
>> _______________
>> Barry Moorhouse
>> G-JHYS Trigear XS
>> Rotax 914 UL
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=293610#293610
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
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