It’s well known that, years ago, some genius at AMC decided it would be a good idea to put plastic valve covers on Jeep 4.2L (258ci) engines. Unfortunately, it didn’t take long for them to start ...
CarBuzz on MSN
Valve lash: What it is and why it matters
A small gap with big importance in the performance and health of an engine - here's everything you need to know.
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