Replaced a bad recirc valve with a new one. Was on the water today for test run and the valve blew out of its hole. I used Form-a-Gasket #1 to seal it. Apparently it was not strong enough to keep it in place or I did not use enough or clean out the bore well. I need a recommendation on what to do. <br /><br />I guess I should add that the new one is a hair smaller in diameter. I don't have a caliper to measure it but you can tell if you look closely. In other words, the only thing holding this thing in place will be a sealant. Can the fitting be knurled like a valve guide? Hopefully this will not be necessary, but I am getting tired of pulling carbs to get to this valve. Any help is much appreciated.
