ghmallard Posted December 31, 2021 Share Posted December 31, 2021 Got 96 ch613 E7 350 mechanical. Engine will flutter at 1500-1600 rpms only at operating temp. Does not flutter until gets to operating temp. Sounds kinda like helicopter. Can drop below 1500 or go above 1600 rpms and it stops. Have checked for leaks installed new filters etc. Has anyone had this same issue?Im not sure where to look next any help be much appreciated. Quote Link to comment https://www.bigmacktrucks.com/topic/68998-96-ch613-e7-350-mechanical-flutters/ Share on other sites More sharing options...
67RModel Posted December 31, 2021 Share Posted December 31, 2021 I am having a similar problem with my mechanical E7. It’s most likely a problem in the pump and in my case some people think it’s probably the governor, which makes the most sense in my case Quote Link to comment https://www.bigmacktrucks.com/topic/68998-96-ch613-e7-350-mechanical-flutters/#findComment-486263 Share on other sites More sharing options...
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