StalkerLS1

I have my Walbro Wires soldered.. I did have some Shrink wrap over the Solder joint but pulled my FP out yesterday to inspect the hoses and the Shrink wrap was jelly and nearly disolved.

Is there anything that I can use that won't disolve in Fuel? Last thing I need is those wires nicking each other.

Which by the way.. Is fuel not a conductor of Electricity? I'm still baffled how the wiring can be submerged in Gasoline and still power the pump.. Wow!

THanks

MIGHTYMOUSE

iTrader: (59)

i just have butt connectors on mine, yea nothing blows up... good stuff eh? there is probably some fuel tolerant heat shrink..somewhere??

StalkerLS1

I figured there's gotta be something out there.

TTT

jimmyblue

iTrader: (11)

I have seen two kinds of heat shrink tubing, one
looks like polyethylene (glossy) and one is a
flat material. I think a polyethylene would stand
up. The stuff you find at Radio Shaft is usually
the flat stuff. I have found the glossy at Home
Depot as well as electronics surplus places.
Maybe get a chunk of each and do a soak test?

The best course might be to redo the wiring with
fuel-resistant wire, pump terminals to bulkhead
in one unbroken run. If you can find fuel-
resistant wire. There are Teflon insulated types
that would do well I think. Standard PVC insulation
I wouldn't trust any more than the heat shrink.

You could cut & strip the wires to offset lengths
so the bare / soldered regions can't touch when
laid side-by-side.

bill99hawk

I was looking around for the same answer. I find this site that sold heatshrink that resists gasoline.

http://www.sailnet.com/store/item.cfm?pid=14695

Mike K.

Damn and I just did mine with the radioshack stuff. I remember reading a post about this while back and there was something about teflon coated shrink wrap is the only kind to use. Billhawk thanks for the link, Ill have to get some of that stuff.

bill99hawk

Sure it is in the description, but it says resists...

"Shrink Products to enviromentally seal electrical connections. The Adhesive lined Heat shrink Connectors insulate and protect connections from mechanical abuse, wire pullout, moisture intrusion and abrasion. The heat activated adhesive melts and flows under pressure from shrinking to create a seal which resists water, oil, gasoline, and other enviromental contaminants."

BTW, I don't make any claims that this is the stuff to get, but I haven't found anything else on the net that makes any claims with Heat shrink that works with Gasoline other than this stuff and another brand by Tyco.

Mike K.

I found the old thread where racetronix said only get teflon shrink wrap for the fuel pump.

Here is the thread

https://ls1tech.com/forums/showthrea...ghlight=shrink

Now to make a new thread about where to get the stuff.

Racetronix

iTrader: (2)

WOW...!
Looks like there are a few more Roman candles out there than we thought?

IT MUST BE TEFLON or remove the solder joint and use NYLON butt connectors only (not vinyl).

The Racetronix kit comes with an all new Teflon wire assembly that plugs into the pump and directly into the factory GM connector. Teflon is what GM uses from the factory.

Mike K.

Now you have me scared !!!! Would it be possible for me to get the harness that goes directly from the Walbro to the stock connector or do we have to get more that? emailed ya

bill99hawk

I would like to know also!

Mike K.

Damn I searched locally everywhere, Marine stores, Auto stores, electric stores. Nobody had teflon heat shrink. The best I could find was weather resistant heat shrink that was clear but it did not say what it was made out of on the package only that it was weather resistant.

Racetronix

iTrader: (2)

You can possibly special order 4' lengths of Teflon heatshrink from Digikey but it would not be cheap.
The best thing to do is use Panduit or 3M nylon butt connectors and forget about soldering.

bill99hawk

Racetronix, what would happen if vinyl connectors were used?

Racetronix

iTrader: (2)

They will deteriorate in gas.