jb weld on fuel inlet tube ?

[Fredellus]

simple enough question. has anyone hit their carb inlet tube/carb with jb weld to prevent it from coming out? i have an h30/31 so it's sort of what i'm thinking of doing this to.
let me know!
thanks

[volksnhousin]

Do this or something like this.

I don’t think JB weld would hurt anything but I personally wouldn’t use it there.

[Cusser]

Yes: JB Weld and/or distorting the tube shape a tiny bit will help a bit. BUT ALSO SAFETY WIRE IT OR YOU"LL BE SORRY !!!
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1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297

[johnnypan]

Clean tube and carb body tube bore with scotchbrite extra fine...(cut a piece of scotch brite like a Qtip for the bore) coat tube with red loctite threadlocker,install and let loctite set up 12 hours or so before using,end of issue.

[thechief86]

what about running a tap down the hole, and installing a threaded hose barb with loctite? i was thinking this would be a good day-off project.... i DO NOT want my car to catch on fire.

[dan macmillan]

Use a 1/8 pipe tap and teflon tape approved for gasoline {the yellow tape not the white one}

I stand corrected, a 1/16 NPT X 1/4 hose barb fitting is the way to go.

Thanks mondshine, I was not aware that they made them that small.
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[mondshine]

Thechief-
You are correct. a 1/16 NPT X 1/4 hose barb fitting is the way to go.

Use a brass barb fitting which is 1/16 NPT X 1/4. (1/8 NPT is too big for the carburetor top.)
They are a little hard to find at a hardware store, but a good source for fittings is:
http://fittingsandadapters.com/malpiptap.html
their stock # MPT-4-1 is a 1/16" NPT X 1/4" barb.

If you need a tap, here's a source for that:
http://www.amazon.com/National-Pipe-Taper-Speed-Steel/dp/B000U7LSPO

You won't need to drill the carburetor top to tap the hole; with the brass tube removed, the original drilling is just right.

Something to consider is that the safety wire setup shown in that photo does absolutely nothing to guarantee a seal between the brass tube and the carburetor top. Properly done, the threaded fitting will be a permanent fix.

[thechief86]

^^thanks. i have a kickass hardware store right next to where i work. they have everything i need. i had already pulled my stock brass pipe out, scuffed it and reinstalled it with red loctite and a safety wire, but i'm paranoid. i can't afford the weber carb setup i want right now, so i want to be sure i'm not going to lose my car. i just recently had to fix leaky injectors on my jeep a couple of weeks ago, and i had another jeep catch fire because of leaky injectors several years ago. i was able to put it out and get it fixed, but it looks like a bug fire gets way out of hand way fast. this VW is the only car i've ever had that i liked as much as a jeep. i am too attached to let it go out that way.

[tundrawolf]

JB weld works for fuel connection. For a while. Never know when it will "stop" working. Wet-Weld (I think that's the name) says it is OK for fuel applications. Neither is good to use on a carb inlet if you want to keep your car from burning to the ground.