Do you want this big green box to go away? Well here's how...

Click here for full update

Wildcat! photo archives restored.

Click here for full update

Donors can now disable ads.

Click here for instructions

Add yourself to the user map.

Click here for instructions

Sight Gauge

Converted from Wildcat! database. (read only)
Locked
Wayne G. O'Shea

Sight Gauge

Post by Wayne G. O'Shea » Fri Feb 17, 2012 9:16 pm

I have sent again, with a proper subject so it is searchable for archives
material!

----- Original Message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <murphy-rebel@dcsol.com>
Sent: Saturday, September 01, 2001 10:32 AM
Subject: Re: Paddle Holder

Brian, I feel this happens due to the restrictions at fittings going into
the tanks. Even though minute, this means that there is more ram air
pressure on the top of the sight gauges, than the pressure value that
makes
it into the tank itself. This obviously means that the fuel level will go
down in the sight gauge as there is a higher pressure at the top, than the
port at the bottom from the tank.

On Bob's "XWI" the ram air tubes are on the fuel caps and I don't remember
the sight gauges being effected that much, as compared to the amphib I
sold
that had the ram air in the cross vent. It seemed to work quite accurately
because now the opposite would apply. More pressure in the tank, than at
the
top of the sight gauge tube that would help hold the fuel level in the
correct place. Please BOB correct me if you are observing something
different in the 125 hours or so (MUST BE NICE!) of flying since XWI left
here just over a year ago, but that is what I remember.

My personal Rebel's ram air is ala Cessna, from behind the right wing
strut,
but I have float senders so can't tell you if this would help the sight
gauges (although I imagine it would, but isn't an after the wings done
option!)

Regards,
Wayne G. O'Shea
www.irishfield.on.ca

----- Original Message -----
From: "brian amendala" <solongez@hotmail.com>
To: <murphy-rebel@dcsol.com>
Sent: Saturday, September 01, 2001 10:10 AM
Subject: Re: Paddle Holder


*-------------------------------------------------------------------------*
The list archives are located at:
http://www.dcsol.com:81/public/default.htm
username: rebel password: builder
*-------------------------------------------------------------------------*
Wayne, is there a way to redo the vent. Mine is cross vented and if I
blow
into the hole the fuel gets blown out of the sight guages, so when I get
low
it shows no fuel in the tanks. I have already put a restrictor in the
BOTTOM
el of the sight guages and was wondering if there was something else I
could
do to stop the pressure on the guage...Thanks....Brian


*-------------------------------------------------------------------------*
The list archives are located at:
http://www.dcsol.com:81/public/default.htm
username: rebel password: builder
*-------------------------------------------------------------------------*
Brian, Stop flying with less than 5 gallons of fuel in each tank! Then
you
will not get as nervous!!!

Seriously, you must have the site gauge in MAM's newer (ridiculous)
straight
up/down position on the front end of the fuel tank. I know this without
asking first, as 5 gallons US just wets the bottom of the tank at the
filler
neck in the 3 point position, and even on amphibs the dip stick doesn't
change that much. You need the lower fitting, for the tube style sight
gauge, to be as far back on the tank as possible if you want it to be
of
any
use. I'm not interested in seeing max fuel, but I sure want to know
when
I'm
getting low!!! On any that I have been "refurbing", which includes
removing
the sight gauge from the tee at the fuel outlet (as the original MAM
installation does draw air into the fuel line!!), I have been
installing
a
new tank fitting about 1 3/4" forward of the original outlet fitting.
Only
drill a small hole at the lower edge of where the tank fitting will
sit.
This gives you an automatic restricter hole to stop the sloshing around
on
the sight tubes. Also this way you are only drilling about 6 #30 holes
in
the finished tank so aluminum chips shouldn't be a problem in the tank.
You
may be able to do this with the wings installed using an angle drill
and
a
hand riveter. The other possible cause, if you have the sight tube on a
slant like I have described, is I have seen installations where the
tubing
from the tank through the fuselage root ran up hill. You need to make
sure
that the tube is coming though level or downhill from the tank into the
cabin to show a fairly accurate amount at low fuel levels otherwise the
tube
just drains back downhill into the tank when low on fuel.

Regards,
Wayne G. O'Shea
www.irishfield.on.ca

----- Original Message -----
From: "brian amendala" <solongez@hotmail.com>
To: <murphy-rebel@dcsol.com>
Sent: Thursday, August 23, 2001 7:22 PM
Subject: Re: Paddle Holder

*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*
a
get
to like
I
*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*
very
many
and
minutes
tube
with
1/4"
inches Drill
Velcro.
full
his
so
boat
each
year,
to
slip spreader
in
secured.
*-------------------------------------------------------------------------*
the
*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*
*-------------------------------------------------------------------------*

*-------------------------------------------------------------------------*
You have received this message because you have subscribed to the
murphy-rebel mailing list.
To unsubscribe from this list, send an e-mail to:
list-server@dcsol.com
with "unsubscribe murphy-rebel" in the body of the message.
For assistance contact mike.davis@dcsol.com
*-------------------------------------------------------------------------*

_________________________________________________________________
Get your FREE download of MSN Explorer at
http://explorer.msn.com/intl.asp
*-------------------------------------------------------------------------*
You have received this message because you have subscribed to the
murphy-rebel mailing list.
To unsubscribe from this list, send an e-mail to:
list-server@dcsol.com
with "unsubscribe murphy-rebel" in the body of the message.
For assistance contact mike.davis@dcsol.com
*-------------------------------------------------------------------------*




-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------
Top
Locked

Return to “Rebel Builders List”