Hemi Camshaft Failure Mystery Explained
Somewhat of a mystery over the years has been these random roller camshaft failures in modern Hemis. Uncle Tony just made a video explaining his findings on the issue. If you are interested here ...
Forum Discussion
ksss wrote:hvac wrote:
It appears idling is what accelerates the failure. If so police applications must be experiencing high failure rates.
That is true, incredible failure rates here locally. The 2011-2014 seem to be the worst. The local pd has auctioned off the majority of Chargers. The City mechanics are continually pulling these apart, repairing them only to have to do it again. Really something not right with this engine.
We do work for a couple of towns around us. It’s not idling. It’s the geometry of the cam and lifters in relation to the pushrod/rocket arm. Also the poor quality roller bearings in the lifter. With the amount of Hemis on the road the failure rate is very minimal.
