marvgarr Posted December 12, 2008 Share Posted December 12, 2008 why do dynatard engine brakes need a special cam and tecbrake and jakes dont Quote Link to comment Share on other sites More sharing options...
Maxville Truck Posted December 12, 2008 Share Posted December 12, 2008 why do dynatard engine brakes need a special cam and tecbrake and jakes dontDynatards are cam operated...... they open the exhaust valve early on a special designed "second lobe of the cam shaft" the exhaust lobe has a slight second lobe ground into it that is below the lash setting of the exhaust valve. when you turn it on, the dynatard closes that gap and gives you :SMOKIE-LFT: your engine brake. A jake ,pacbrake, or tecbrake, use an adjacent intake valve to engage the exhaust valve for the braking action. Quote Link to comment Share on other sites More sharing options...
marvgarr Posted December 12, 2008 Author Share Posted December 12, 2008 that makes sense Quote Link to comment Share on other sites More sharing options...
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