Onion Posted October 13, 2013 Share Posted October 13, 2013 I was performing a float level adjustment on my Holley 390 2.4 today. After having adjusted the idle mixture screws and the float, I gave the car a rev to see if there's any stumbling or hesitation. I give it a fraction of a second of 3/4 throttle and I hear a LOUD screech sound. I do it a second time hoping to identify where it came from, but I wasn't able to tell. It was around 3000-4000 rpm, I had about 20 psi of oil pressure, and the engine was around 130 degrees. Any ideas? This is my daily driver, so I'm pretty worried. Quote Link to comment Share on other sites More sharing options...
z240 Posted October 13, 2013 Share Posted October 13, 2013 Fan belt is loose or glazed. Relax. At least its easy to tighten and see if it persists Quote Link to comment Share on other sites More sharing options...
Onion Posted October 13, 2013 Author Share Posted October 13, 2013 Fan belt is loose or glazed. Relax. At least its easy to tighten and see if it persists That is a HUGE load off my shoulders. Thanks. I'll check it out tomorrow morning. Quote Link to comment Share on other sites More sharing options...
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