Don, I did not see such an advisory. Could you tell me in which thread? Though I am but an amateur machinist, and a novice at engine repair, I do not see how the 1/4" bolts cannot satisfy the engineering specs of the carb as well as the 7/32". Also, since the carb is cast from Zamak or some other recipe of zinc and alum, I do not see any problem in my going from the fine thread to the coarse, though I do understand that this could be an issue in other, more critical, fastening situations. I had no leaking issues while I was missing the holding contribution of one bolt, so I do not expect any leaks now that I am bringing back the fourth bolt. I am sure that I have done similar type repairs on some of the vintage Zamak machines I have restored or worked on, and I cannot recall ever being sorry. So far, I only see that I need to exercise the usual cautions applicable to tapping. But please feel free to opine otherwise. I do not like to contradict those who have more experience than I will ever have time to gather in my lifetime.
Last edited by Alden B.; 12/15/2014 2:29 PM.
