It will decrease in pressure because of the increased head and also
friction losses in the tubing (I did a semester studying fluid
dynamics as a surveyor many years ago trying to get water to go up
hill)
The only way to verify is to put a fuel pressure gauge right at the
carburettor entry.
Justin Gregoris wrote on 19/04/2022
10:59 am:
do you guys think technically - if the fuel pump is about 40
inches before the carburetor, the PSI output pressure will
decrease slightly from 4.5 to about 4.25, for example?
ok perfect - so my current 3-4.5 psi set up works - great to
know.
I'll just replace the current pump with the exact make and
model, or if there are stock shortages near my location, ill
find something with a max of 4.5psi
like this:?
Justin Gregoris wrote on
19/04/2022 10:00 am:
Hello again Gents,
I cannot find any information regarding the GPH (gallons per
hour) or PSI min. & max. for our electric fuel
pumps.????
this will be in the requirements from
the engine manufacturer, it will stipulate a minimum and a
maximum psi for the fuel supply so this is nothing to do
with the aircraft but is unique to individual engines
After a frustrating 20 minutes, I was able to remove the
fiberglass belly pan of the X Air H. I am glad I did this
because the previous owner didnt install the bypass fuel
line section with a 1-way check valve! Why do you think he
did not do this?
ignorance or trying to keep costs as
low as possible???
He built the airplane pretty well with upgraded wiring and
other parts, but maybe because he felt more connections
means greater potential for leaks?????
Moreover, I notice I have a Facet Cube fuel pump - model #
40105. The specs on the Cube 40105 are: 30GPH, 3.0 min PSI
and 4.5 max PSI.?????
a quick Google search led me to the
Jabiru manufacturers website where it states the maximum
pressure should be 3 psi please this is just a Google
search please look at the manufacturers manual and
specifications for their product
Is this correct? I feel like I should replace the electric
pump, just in case. Here is my reasoning: the previous owner
didnt even install the supplied Facet fuel filter into the
Facet Cube! Why did he not do this as well?????
because of the well-known problems
with clogging of this filter. Most people do not use this
filter and instead install a proper filter upstream
After the fuel tank, I do have a Dorman 55240 glass fuel
filter, which is great, but because of my paranoia with the
fiberglass/resin and organic particles in my 100LL fuel that
is currently in the tank, I wont be surprised if there are
some fine particles trapped within my Facet Cube - engine
& plane currently at 160hours.?
I cant seem to find any info regarding how much min. and
max. and GPH my 22A2895 Jabiru 2200 (160hrs) calls for, in
the event my Jabiru mechanical fuel pump fails.
It is pretty simple I just went to the
Jabiru website and downloaded the installation? manual for
the 4 cylinder and 6 cylinder engines and they are saying
minimum 2 psi and maximum 5 psi. This comes directly from
the manual at the link below and I would not use anything
but the engine manufacturers specifications
--
|
With regards, Michael
Coates
Pipistrel Aircraft Master Distributor for USA,
Australia & New Zealand
AU +61 7 5522 0583
USA +1 213 984 1237
Slovenia +386 3041 6470
Email:
info@...
Web:
Skype: xcomavionics
|
|
|
Pipistrel Aircraft
- Dealer of the year 2012
Winner of the EAA
August Raspet Award 2012
Pipistrel Aircraft
- Dealer of the year 2017
|
--
With regards, Michael Coates
AU +61 7 5522 0583
USA +1 213 984 1237
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017
mailto:mcoates@...
skype name: xcomavionics
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