Mike:
We all have good opinions. I put three fittings in each end rib. two at the
front ,top and bottom and one at the back on the bottom.Out of the top front
fitting I came into the fuselodge,and put in a "T". Go from the bottom of
the T to the bottom fitting. This is your sight gauge, with clear
tubing.Cross vent to the other side from the T fitting in the fuse.The back
bottom fitting is the fuel line. Come into the fuse, turn 90* install a ball
valva, run down the back of the door post,install a T,run one line up to the
carryhtroughs, across to the middle,install a T, this picks the line up from
the other side which now goes to and through the firewall to a gascolator.
From the other end of the T close to the floor behind the door post, run
another line to a drain through the floor making this the low point in the
fuel lines. This has worked for me for 46 hrs. so far.I vented both fuel
caps. 3/8" tube about 4" high curved into the wind. Don't forget to seal the
holes in the fuel cap. $100 bucks later at a welding shop that knows how to
weld aluminum.
Good Luck
Murray
rebel 505
-----Original Message-----
From:
mike.davis@dcsol.com [mailto:
mike.davis@dcsol.com]On Behalf Of
klehman@albedo.net
Sent: Friday, April 02, 2004 10:50 AM
To:
murphy-rebel@dcsol.com
Subject: Re: Fuel Tank venting
Mike
If I understand your question, my plan is one inverted J on the top
right wing root fairing like Wayne and Bob recommended. With cross vent
lines that join at the inverted J. My prop turns clockwise as viewed
from the cockpit.
Draw the wing and tanks with 1 degree of dihedral on each wing. When
pefectly level the outboard side of the tank is something like 0.6
inches higher than the inboard end which is why the fuel cap is out
there. Then tilt your drawing to simulate being parked with a low wing
and satisfy yourself that your fuel won't drain.
Underwing drains pretty much require the vent tube to go to the far side
of the tank so that only small slugs of fuel can escape. And you may not
want to crossvent the way the manual shows if using underwing Vents as
fuel can flow through the crossvent into the low wing. For environmental
reasons, I like the inverted J on the top of the wing so that not even
small slugs of fuel can escape as the fuel sloshes around.
I concluded that I only liked the method that I used if I was going to
crossvent. But I like either an inverted J in the wing root or an
inverted J on both fuel caps. It's easier to remove the fuel caps
without tubes on them though.
Ken
Jones, Michael wrote:
HI KEN
where did you put your vent tubes, one or two, i was thinking of off the
outboard tank rib, one or two or maybe tee of vent holes on inboard rib,
also runing vent tube inside tank from inboard to outbard like you
suggested
mike#007
-----Original Message-----
From:
klehman@albedo.net [mailto:
klehman@albedo.net]
Sent: Friday, April 02, 2004 11:45 AM
To:
murphy-rebel@dcsol.com
Subject: Re: Fuel Tank venting
Actually one of the easiest mods that I did ;) Back to back 1/8 NPT
flanges on the root rib and a 1/4" aluminum tube along the top of the
spar through the cutouts that are already there at the top of the ribs.
Some proseal to keep it from chafing and a bracket or clip to hold the
outboard end of the tube.
Ken
Ken has an excellent suggestion on venting from the
top front outside corner of the tank, but a bit tricky to get
the tube in place inside the tank, I suspect ...
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