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1. 01:30 AM - Re: UMA fuel pressure sender wiring (Jay Hyde)
2. 07:57 AM - Re: UMA fuel pressure sender wiring (messydeer)
Message 1
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| Subject: | UMA fuel pressure sender wiring |
Hello Dan,
Why do you need to bring the power wire out so soon- I imagine that it is to
be able to connect to your positive bus? I don't think that that should be
a problem, however, instead of cutting the braid try this method. Hold the
braid tightly around the cores just behind (towards the sensor) where you
want to bring the wire out, say in your left hand. Lightly grasp the shield
about 1 inch to the right with your right hand and slide the braid to the
left like a sock. The braid should 'balloon' up between your fingers. Now
take a sharp pencil and use the tip to work open one of the holes formed
between the braiding. Work it open enough to be able to get the tip in
under the wire that must come out. Now pull a loop of the wire out through
the hole in the braid and then pull the whole wire out of the braid. Once
its out pull the ballooned part of braid flat along the remaining wires.
Voila! Now you have the wire out and no damage to the braid.
Jay
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of messydeer
Sent: 06 October 2011 04:54 AM
Subject: AeroElectric-List: UMA fuel pressure sender wiring
Hello!
I just got a UMA N1EU07G fuel pressure sender. I am mounting this on the
firewall, about 6" away from the MGL RDAC (where the signal wires from all
the FWF probes connect) and about 18" away from the firewall ground. I will
split off the power wire at ~6" from the sender, leaving the other two wires
and braid (if needed) to run until they are 16" away from the sender. At
that point, the signal wire will separate from the ground and shield and
connect to the RDAC. The ground and shield would go the final 2" to the
firewall ground.
The easiest thing for me to do is to remove the insulated cover over the
braid (and 3 wires) to the point where the power wire needs to separate. I
imagine the braid will be a bit tight around the wires, so I could cut it
off at the point where the power wire separates and splice a separate ground
wire to it. Or does it need to shield the signal wire for that extra 10"?
Lemme know how this sounds to you.
Cheers,
Dan
--------
Dan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=354153#354153
Attachments:
http://forums.matronics.com//files/uma_fuel_pressure_sender_wiring_625.jpg
Message 2
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| Subject: | Re: UMA fuel pressure sender wiring |
Thanks, Jay :-)
Yes, I'm taking out the power wire to splice it to a rather short power supply
wire. But I still could have left it in for a bit longer, now that I look at the
finished product shown below.
I thought the braid might be too tight to get the wires out, but it worked just
fine. I removed the original white plastic covering to an inch before the power
lead takeoff and kept the other two wires in the braid. Used heat shrink to
cover the exposed braid and did the same thing where the signal wire comes out.
The last few inches has just the ground wire inside the braid. I stripped the
ground wire back 1/4" so it would contact the braid, then stuffed them both
into the faston terminal and crimped away.
--------
Dan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=354195#354195
Attachments:
http://forums.matronics.com//files/uma_fuel_pressure_sender_wiring_151.jpg
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