Nick,Dave,
I too am at the stage fuel tank installation and fuel lines routing and
finding this discussion very helpful. I too am thinking to go solid Al
and would like to leave out the hose completely as per Graham. This
presents a problem in that the supplied tank outlet fitting won't work.
Graham had his custom fab. but does anyone know of one that would work
ready made?
Craig
A205
On Fri, 26 Oct 2001 08:56:53 +0930 Nick Hammond
<nick.hammond@saabsystems.com.au> writes:
>Dave,
>
>The fuel drain mod appears to be pretty much what you are intending
>with the
>exception of extension tubes (like those on the vent boss) on the 1/8
>NPT
>ports to get to the lowest part of the tank. Given the variations in
>tank
>shape and mounting position, I'm not sure this is going to achieve
>much --
>as far as I can calculate the bottom of my tank will be pretty much
>horizontal in the normal ground attitude. I have been waiting for over
>two
>months for the mod from Europa (package appears to have gone astray)
>and am
>on the verge of cancelling the order and doing exactly what you
>describe.
>
>For what it's worth. I'm planning the following:
>o drains as above with a T connector for the sight gauge take off
>o hose from the tank outlets to the selector valve, 3003-0 solid
>aluminium tube for the remainder
>o valve mounted in its normal position (its reasonably accessible
>and
>isn't intended to get much use)
>o Andair mini gascolator and Facet pump mounted below the baggage
>bay
>with a third drain from the gascolator bowl
>o All components electrically bonded to a stud near the filler
>
>Recent reports have described the standard sight gauge as "useless" so
>I
>have positioned it on the seat-back bulkhead between the seats and it
>will
>connect to the main tank vent via another T connector. I am hoping
>that the
>position of the gauge will minimse bogus readings due to attitude and
>acceleration and that a single common vent will minimise errors due
>to
>pressure differentials.
>
>I have read the recent correspondence on filters and find Graham
>Singleton's
>recent argument for a single gascolator and drain pretty convincing.
>Europa's glass-bodied filters in the seat pans with no stop valve
>between
>them and the tank can best be described as an ugly kludge.
>
>Best regards,
>
>Nick
>
>
>-----Original Message-----
>Cc: georgec@sncorp.com; jas56d@msn.com; Mv727cap@aol.com
>Subject: Fuel system changes
>
>
>I am getting ready to install the fuel tank and am looking at changes
>to the
>system. As a new builder, I am not 100% familiar with some of the
>things
>mentioned on the internet. Specifically, the fuel drain mod I have
>seen
>mentioned is one of those things. Here is what I am planning to do:
>
>On the 1/8 inch threaded holes on the output fittings from the tank, I
>will
>install a fitting to a fuel hose running to a quick drain valve for
>each
>tank - reserve and main.
>
>I will install a short section of hose out of the output fittings,
>then to
>an adapter fitting to transition to solid aluminum lines to the
>selector
>valve and to the firewall.
>
>Since I will use both 1/8 inch feemale holes on the output fittings,
>(F09C)
>I will not have the clear tube for fuel level check. I will instead
>use a
>gage with a possible flexible dip stick for a gut check on the fuel
>level.
>
>I am thinking that I might put in 2 gascolators, but after reading
>other's
>stories I would install one Andair gascolator after the fuel selector
>valve.
>
>The selector valve would probably get mounted in a more convenient
>place --
>like on the top of the center console.
>
>
>These are ramblings of a new builder. I like to be able to drain fuel
>from
>the lowest point of the tank -- unlike my Twin Comanche which drains
>the
>lowest point of the fuel system. With this setup, both tanks can be
>drained
>directly with the port for the drain valve being at the low point of
>the
>output valve.
>
>Back to work,
>
>Dave
>
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