Eventually this trickled down to GM's incorporation of this technology into the Gen IV 6.2L L92 Escalade motor for the 2007 model year. GM's design placed a cam phaser on the face of the cam, which ...
BorgWarner has patented a variable cam timing phaser with a lock pin that acts as a shutoff valve, preventing oil leakage from advance and retard chambers. This innovation maintains oil in the phaser ...
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