i don't know if there would be a better section to post this but here is my ?
i just finished a new holland hit-miss but the ingniter is not vertical as it should be. so i went to bend it alittle which it is only 3/8 inch square and it broke. so i went to order a new casting and i asked the guy if he had any problems with the arm not lining up. and he came back and told me that they all need alittle tweaking. so i asked how he does it without breaking them. and he came back and told me that he heats the cast arm up till it turns gray which is suppose to anneal the bronze. so i got the new casting and machined it to fit . which i found i had the same miss alignment. so i went to heat it up till it got gray in color and let it cool to room temp. but the same thing happened again.so i went and silver soldered it back together and it looks real good. but when i joined it back together it was off to where it should be, but better than it was as far as alignment goes. so i need to tweak it some more, like about 3/16 inch over a length of approx. 2". but i'm afraid to touch the good joint i have put back together. and if i try to tweak it from that point out, i'm afraid it will snap again.
on the old arm i tried to bend it when it was just starting to get red . but yes it snapped where it was red.so what is a safe way to tweak cast bronze?
by the way the casting at the point it broke looked very coarse and grainy.
HELP, PLEASE!
i just finished a new holland hit-miss but the ingniter is not vertical as it should be. so i went to bend it alittle which it is only 3/8 inch square and it broke. so i went to order a new casting and i asked the guy if he had any problems with the arm not lining up. and he came back and told me that they all need alittle tweaking. so i asked how he does it without breaking them. and he came back and told me that he heats the cast arm up till it turns gray which is suppose to anneal the bronze. so i got the new casting and machined it to fit . which i found i had the same miss alignment. so i went to heat it up till it got gray in color and let it cool to room temp. but the same thing happened again.so i went and silver soldered it back together and it looks real good. but when i joined it back together it was off to where it should be, but better than it was as far as alignment goes. so i need to tweak it some more, like about 3/16 inch over a length of approx. 2". but i'm afraid to touch the good joint i have put back together. and if i try to tweak it from that point out, i'm afraid it will snap again.
on the old arm i tried to bend it when it was just starting to get red . but yes it snapped where it was red.so what is a safe way to tweak cast bronze?
by the way the casting at the point it broke looked very coarse and grainy.
HELP, PLEASE!