Fuel pump power wire

[talonDSMerr]

This weekend, I tried installing a walbro 255. Everything went smoothly until I was assembling the new pump onto the assembly, screwing down the nut that holds the lug connector of the power wire to the top of the assembly. Well, I must have overtorqued it, the stud broke off and I was left with no means of connecting the power wire.

What I ended up doing was hold the lug connector down so there was good contact between the surfaces and put JB-weld over the connection. Does this effect the power supply going to the pump?

 

[steve]

What are you going to do when it starts sparking inside your fuel tank?

 

[talonDSMerr]

JB Weld is electrically insulative and there is also a rubber cap that goes over the connection. Is there a risk of spark?

 

[steve]

JB Weld is electrically insulative and there is also a rubber cap that goes over the connection. Is there a risk of spark?

The rubber cap isn't airtight, and the JB Weld isn't going to provide a secure mechanical connection between the ring terminal and the feed through. Having a good mechanical connection is important when you going to draw between 10 and 20 Amps. Once the physical connection weakens you will get arcing and that's really bad inside a fuel tank.

 

[Supa Dexta]

Fix up, either find a new fuel sender. Or find a cable gland and drill a hole in the top for the wire to feed thru safely.

 

[toofast82]

Fix up, either find a new fuel sender. Or find a cable gland and drill a hole in the top for the wire to feed thru safely.

+1
don't rig it up, fix it right, especially when it could cause some big problems

 

[rEclipserGST]

Yea man, +1 on fixing that correctly. If it was anything else, i would say rig it up. BUT thats your fuel pump, thats like your sugar momma. If she goes... then your broke. Your motor could possibly be broke that is. Lack of fuel could starve the engine. So i would suggest looking on the Classifieds and finding a 1g rewire kit. They can be had for cheap.

 

[steve]

Stalling due to lack of fuel is not what I'd be worrying about. An Analysis of the Central Fuel Tank Explosion of TWA Flight 800

 

[talonDSMerr]

Thanks for all the tips, I just rewired the pump yesterday.

^^^The spark inside the tank was my biggest concern. I ended up drilling a hole in the cover of the assembly yesterday and running the power wire through and directly to the power wire on the harness, sealing the hole I drilled with epoxy on both sides. There should be no risk of fire in the fuel tank anymore and it should be sealed. Thanks guys.

Car is running now, fuel pump is loud, and I just need to dial in the new injectors and fuel pressure.

[RESOLVED]

 

[toofast82]

sounds like that should work out