There is a process I use for cast iron repairs I learned about several months ago from some research in an old Lincoln welding book & a couple of posts from other sites. It is called Cold Welding Cast With MIG and I use it exclusively now for cracked castings & have had superb results & success. I use .030 or .035 309L SS wire & weld, usually in the 60A range, in very short fillets not exceeding 1/2" in length to keep the casting "cool". You can take off your glove & lay your hand on the cast right after welding & it will feel barely warm. I wait about 15 min. & do another short fillet and just repeat till the entire fillet is complete. You must have the cast surface prepped & bare around the hinge area. Each application is as the first, barely warm & you will not hear the "ugly" sound of "tinkling"(a crack) with the casting. It will give you excellent results & would make for a very good application. Anyway, just a suggestion you may want to consider.... Denny
Complete weld/mach./fab shop
"A man's word is his honor...without honor, there is nothing."
"Words are like bullets.... once they leave your muzzle, you cannot get them back."
"I have no hesitation to kill nor reservation to die for the American Flag & the US Constitution."