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rhagfo's avatar
rhagfo
Explorer III
Jul 02, 2023
Grit dog wrote:
Stronger exhaust springs?? To keep the muffler bearings from coming apart or something?
OMG , thanks for the laugh.

It surprises me you dont understand the need for stronger exhaust valve spring with an exhaust brake. The PacBrake kit for the old 12 valve Cummins included new stronger springs, these were needed to keep the valves seated against the back pressure.

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