What's a good sealer to use that's not affected by fuel? Brand new tank and this plug has a pretty good drip. It's tight too.
I bought some of this the other day to seal fittings (four) in the fuel system in one of my cars. Worked great. https://www.lowes.com/pd/Hercules-Megaloc-8-fl-oz-Thread-Sealant/1000622099 DON'T use a tape, use a paste, whatever you use. Mike
The best products are used in the aviation world. I have a friend who can help with brand names and part numbers but it will take a few days before I can post them for you. Most importantly, you want fuel proof not fuel resistant.
Is it a NPT fitting? If so, switching to a br*** plug would help or stop it. If it’s not NPT, it should have a sealing washer on it. Edit: You mentioned it is a brand new tank, have you contacted the place you bought it from? Sort of an odd place to put a hole, I see your drain plug to lower left of the tank. I wonder the intent of having one there is.
That is the original fuel pick up for that tank? If so it would be a flared fitting. You would need a plug for a flared line. I don't know if I ever saw one. I would imagine there is one available. I have taken a short piece of line and welded it shut .
Was the plug what came with the tank? I'm thinking it may be just for shipping to keep out dirt and critters, so is lacking the sealing features mentioned by others. Straight thread without sealing washers or o-ring. NPT tapped hole but some straight threaded plug. Diesel fitter.
Notice that most are ready to glop it up with something before determine if the OP has the correct plug or not , Kudos to Johnny Gee .!
This one is actually made to be fuel resistant. I used it to help me seal up the sending unit in my 57 Chevy about 6 years ago and it is still holding. https://www.permatex.com/products/g...esistant-gasket-dressing-flange-sealant-2-oz/
Well....the leaking plug came with the tank. I removed it, slathered some Seal-All on the threads, filled up the tank with gas, took an extended ride and all is well! No leaks! Thanks to everyone for the info! On another fuel related note, with a full tank and a little hard cornering I get fuel dribbling out of my vent hose. Probably needs some type of check valve. Any recommendations (links) on what to use? It's actually this tank........ https://bobdrake.com/products/1955-...MIwr_C7uqFhQMVZHF_AB3R8giCEAQYAiABEgKUAPD_BwE
PPG makes several fuel tank sealants for aircraft. They work… really well. PR1422 is just one of them, there are many different grades available. There are also different grades available for cure time, such as A, B, B1/2, and so on. It is temperature sensitive when you mix and allow it to cure, I’m not sure what the limits are but I know you don’t want to be mixing and applying it in a 35 degree garage. A warmer environment is better. You can purchase smaller kits from Skygeek online. It’s a two part mix and there are instructions on youtube or on PPG’s website to get the mixture correct, they also have the technical data sheets available on their website for each product. There are also specific instructions on how to mix this stuff, it can be done by hand but they make machines to mix it if you’re using a lot of it. Don’t get it on you or your clothing if you can prevent it, I have a pair of military BDU pants that I accidentally got this stuff on in 1985 and it’s still there today, no matter how many washings. It will come off your skin with some scrubbing and a few days but its best to wear neoprene gloves when working with it. I don’t think it’s particularly hazardous but I’m sure that the state of CA says it causes cancer, but then again everything causes cancer out there. They make this stuff for different applications and fuel types, I recently got some that was slightly out of date to use on the electrical connections for an in-tank E85 pump. I’ve also used it to seal regular gas tanks for leaks, the biggest thing is make sure the surface is clean and follow the instructions.
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