Adhesive/Sealer For Fuel Tap Intake Tubes

[Bob_Roller]

The plastic intake tubes on the Karcoma fuel tap on the LS, were brittle and cracked beyond re-usability, I found brass tubing a bit larger than the plastic tubes .

My drilling out of the holes wasn't a great job .

So now I need to apply some sort of adhesive to them, to keep them in place .

My '81 fuel tap, has some sort of red adhesive/sealer over the bases of the brass tubes .

Anybody know of a fuel resistant sealant that I can use ?

The common types available at the local auto parts stores, don't recommend their use in a fuel application .  

[Barry]

Not sure if Araldite epoxy resin is ok with fuel but it's claimed to be oil and chemical resistant and you hear of it's use on carbs.  I like the original type which takes a along time to set but flows nicely if you warm it little.

[bruce_launceston]

The fuel tank epoxy repair kits are probably the go. The one I have used was a black paste that you kneed untill it turns grey and it sets fuel proof in 15 minutes. I used it to seal a hole in the steel fuel tank of my SantaFe after a rock went through it. the hole was big enough that I could poke my thumb in it and the epoxy filler was still working when the insurance got around to getting me a new tank a month later.
Just wrap the rest of it back up and put some in your tool kit on your bike and the rest in your car. It's great stuff for emergency repairs.
It comes in two types, one for steel fuel tanks and one for plastic fuel tank.

Sorry can't remember the make but it was probably a US product and is readily available in auto parts stores here in Oz.

Cheers Bruce

[Rob Valdez 79 R65]

Bruce,

That stuff you are talking about reminds me of something I found in WalMart when I was stuck on the road with a diaphragm ring that would not stay in place.

This stuff was in the auto section, and it was a cylinder of putty like stuff.  Cut off what you need and begin kneading until it is well mixed up.




(A new plastic ring from Bing solved my problem)


Bob, you may want to shop for a good used petcock.

[Justin B.]

I have a float bowl that has a couple of holes that were patched a couple years ago with JB Weld - still holding.  Also, I know a couple of hot-rodders that are wizards at Quadrajet resification that use JB weld to seal the lead well plugs that often weep and cause a rich running condition, among other problems.  I sealed up the well-plugs on the carb I put on my '57 Chevy when I rebuilt the carb about 12 years ago and it still seems to be holding...