Today's Message Index:
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1. 10:34 AM - Re: Fuel Pump Requirements on a Low Wing 601 (Clive Richards)
2. 12:27 PM - Re: Fuel Pump Requirements on a Low Wing 601 (Sabrina)
3. 07:03 PM - Re: Fuel Pump Requirements on a Low Wing 601 (MHerder)
4. 11:10 PM - Re: Fuel Pump Requirements on a Low Wing 601 (Sabrina)
Message 1
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| Subject: | Re: Fuel Pump Requirements on a Low Wing 601 |
Hi Ray 601Hd has a continental 0-200 with a mechanical fuel pump with a
Facet 40106 electric pump in parallel fed from the header tank which is
topped up from the wing tanks with a facet 40105 supplied with kit. I would
say that no way would you have sufficient head from header tank on climb out
at full power.
Our original inspector would not accept wing tanks only so we kept the
header tank and had a nasty leak due to a split by outlet valve so we wish
we had only wing tanks at that moment.
If building again I would put a facet 40106 in each
wing route see archives and a facet 40106 forward of the gascalator as a
emergency backup & for take off.
If I did not have the parallel mechanical pump I
would supply this pump from a second back up battery see archives (probably
on Larry McFarlands web site )
Also note if you have the head tank you will need to fit the battery in the
extreme rear of the fuselage for Weight & Balance continental is very heavy
even with light weight starter & PMG If your ambient temperature is below
say 15 C you will need 2 AWG cable to starter due to volts drop. Ray
insisted 4 AWG would do but in winter I had to install a parallel cable.
Clive Richards
Rays 601 HD G CBDG 280Hrs.
----- Original Message -----
From: "MHerder" <michaelherder@beckgroup.com>
Sent: Monday, February 09, 2009 9:58 PM
Subject: Zenith-List: Fuel Pump Requirements on a Low Wing 601
>
> I'm building an HD. I still have to option to put a header tank in it but
> I'm not really fond of having fuel above my lap. I'm looking at puting a
> continental in there. Most o-200's that I've found don't have a mechical
> fuel pump, I'm told that one can be added but it seems costly.
>
> Would I require a fuel pump if I used a header tank? I want redundancy.
> So the question is, is there enough head pressure to feed a continental
> 200 with only the 1-1 1/2' of differential that there is between the
> bottom of a header tank and the carb?
>
> I'll have an electric fuel pump too, but I want the engine to still run if
> I have to shut down the power for some reason.
>
> Anybody have similar thoughts or concerns? Since most of the o-200s went
> into Cessna 150's, they just don;t seem to have fuel pumps too often.
>
> --------
> One Rivet at a Time!
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=229423#229423
>
>
>
Message 2
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| Subject: | Re: Fuel Pump Requirements on a Low Wing 601 |
Notice Ray does not have TWO 40106s... just ONE 06 and two 05s. The 05s fill the
header, the 06 supplies the fuel from the header, the pressures don't add up
that way.
I used two 40105s, both running on take off and landing. One during normal flight.
I also have a buzz aero mechanical back up set to 6 PSI as well as an independent
backup fuel pump battery.
Two 40106 pumps, both running, can easily blow past the needle and seat on the
MA3SPA Marvel Schebler carb at cruise where demand is nowhere near 12 PSI. It
is rated at a maxium 6 PSI--see FAA notice below:
Page No. 1 2 3
Rev. No. 17 17 17
Reformatted 1/95
DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
E-233
Revision 17
CONTINENTAL
Marvel-Schebler MA3 -SPA
NOTE 2. Carburetor fuel inlet pressure limits:
Marvel-Schebler MA3-SPA used with gravity or pump system; minimum 7.5 inch fuel
head, maximum 6 p.s.i. ... -END-
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=230379#230379
Message 3
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| Subject: | Re: Fuel Pump Requirements on a Low Wing 601 |
Sabrina or Others,
Could you elaborate on the buzz aero mechanical pump. I saw this in aircraft spruce
but didn't know exactly how this works. How much fuel can this unit supply
with one "pump". I'm guessing that this is some sort of springloaded mechanical
fuel pump that you use to pump fuel... Perhaps this mechanical pumpis
a distant cousin to a primer??
Boy they sure are proud of that buzz aero pump at almost a grand!
--------
One Rivet at a Time!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=230444#230444
Message 4
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| Subject: | Re: Fuel Pump Requirements on a Low Wing 601 |
The pump works as advertised, keep it below the fuel source, it can be pumped with
a little finger one way and a thumb the other, you have enough time between
strokes to adjust the throttle or add carb heat.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=230458#230458
Attachments:
http://forums.matronics.com//files/buzzaero_191.jpg
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