header tank leak

If you try to replace a 5 gallon tank with a 6 gallon tank the filler necks are in different places. I’m amazed an A&P would R&R a header tank for $1000!!

No amount of sealer will work for very long. JB Weld isn’t legal. Hate to say it, but the only real solution is pulling the tank and probably repairing/replacing it.

There are places that will build a new tank and use your old filler neck so it’s a “repair”.

Every time I’ve tried putting sealer on a leak it didn’t last very long.