Fuel pump install questions!

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
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Chengdu Province
Hey guys. Dropped the tank and yanked out the factory pump to install a new Walbro 255lph unit. The picture of the new pump and accessories can be seen in the image below.

The scenario is this: The new pump comes with a plug-in style electrical harness (as you can see in the pic). The original pump in the car had just two male prongs sticking out of it, and the factory wiring was attached to those with uninsulated female slip-on wire terminals.

I called Summit (who I bought it from), and their tech guy said to splice in the new plug harness and use that with the pump. The pump kit came with two crimp connectors to do just that (you can see them in the pic).

My question is this: Are the crimp on connectors sufficient? Bear in mind, this is the in-tank wiring, so it's always exposed to gas. The tech guy said I could crimp it, or if I wanted to, I could solder it. The problem is, I'm too nervous to bring a hot soldering gun anywhere near those parts that have been soaking in gas for the last 25 years. Also, that would require heat-shrink tubing, and I don't know how that would hold up under constant exposure to gasoline (especially today's stuff with ethanol in it).

Has anyone else ran into this? I figure somebody HAS to have been through this, it's such a common upgrade and such a common pump.

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I just went through this a month or so ago. I got some fuel resistant fuel tubing from McMaster Carr, and I double shrank it. Don't worry about soldering it it won't catch fire, I even used a lighter to shrink the tubing (not close to the tank!). Lemme see if I can find you a link to my thread.
 
I just went through this a month or so ago. I got some fuel resistant fuel tubing from McMaster Carr, and I double shrank it. Don't worry about soldering it it won't catch fire, I even used a lighter to shrink the tubing (not close to the tank!). Lemme see if I can find you a link to my thread.

Did you crimp it or solder it? Honestly, if I can get away with crimping it, I'm not terribly concerned with heat shrinking it. Gas is non-conductive, so as long as I don't have any bare wire flopping around, I won't lose any sleep. The insulation on the crimp connectors will be enough to ensure I don't have any shorts.

Here we go:

http://www.stangnet.com/mustang-forums/834784-fuel-resistant-heat-shrink-tubing.html

As a side note, anybody know what the little silver thing is on the outlet of the fuel pump is in the pic? Looks kinda like a restrictor of some sort. I found it stuck in the rubber cap that came off the pump after I installed it.

That silver thing was fixed to my pump, it stayed on even after pushing and pulling off the fuel pump line 3 or 4 times. :shrug:
 
Did you crimp it or solder it? Honestly, if I can get away with crimping it, I'm not terribly concerned with heat shrinking it. Gas is non-conductive, so as long as I don't have any bare wire flopping around, I won't lose any sleep. The insulation on the crimp connectors will be enough to ensure I don't have any shorts.



That silver thing was fixed to my pump, it stayed on even after pushing and pulling off the fuel pump line 3 or 4 times. :shrug:

I soldered it.