Quote:
Originally Posted by wedged
I bet the defect is caused by the fuel. It seems not too many considered the consequences of adding alcohol to gasoline.
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Actually it is a casting defect. I spoke with them and they told me the issue has not been found to be related to fuel but in their exact words a " casting problem". I have a lot of experience with casting materials since I was a Toolmaker for almost 20 years and worked in a casting facility for a number of years. They probably made a change in the casting material or the process to cut costs and it bit them in the A$$. I have had Holley carbs forever and have never seen this. I have a 650 DP on my shelf that I have been using for 20 years and it looks as good as the day it came out of the box. These new carbs are getting different coatings and there also could have been an issue with the coating process having an incompatability with either the casting material or the fuel. Once the electrolysis starts on parts like this, its impossible to stop it.