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 https://www.bigmacktrucks.com/topic/7020-engine-brakes/ 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 https://www.bigmacktrucks.com/topic/7020-engine-brakes/#findComment-26899 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 https://www.bigmacktrucks.com/topic/7020-engine-brakes/#findComment-26949 Share on other sites More sharing options...
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