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Posted by Doug in CO [68.177.210.80] on Tuesday, November 30, 2010 at 23:16:31 :
In Reply to: anybody ever install an engine brake posted by clueless [201.202.24.94] on Tuesday, November 30, 2010 at 15:45:03 :
....Clessie Cummins contracted to the Jacobs Mfg. company (the drill chuck company) to make his idea of an engine brake. It is NOT a valve that closes or restricts the exhaust from leaving (got a PacBrake on my Ford Diesel) and it is VERY marginal. But Clessie made the TRUE jake that opens the exhaust valves on the compression stroke. Cummins has 3 positions and CAT has 2 positions. Just took my '58 Pete out for a nice drive and regardless of my resonator underneath, everyone within a mile or so HEARD that Cummins jake. Just LOVE that sound! PW content: My Pete is stored next to my C1PW which also has a Cummins.
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