On the way back from Verginia I played with the switch that said Jakeobs Engine brake but was un sure if the sytem had been de installed or not since nothing seemed to work.
Using a toner to chase down the wire runs I found this switch on the governor box on the back of the motor that connects to the switch up front.
The line on the pneumatic cyl that is on the left side of the switch goes to these pneumatic solenoids on the firewall above the engine
I also found wires going in to the rocker covers. Not only on the right bank of cyl,
But the left bank as well. (Did I tell you this engine is a greasy PIG?)
Only time will tell if they really work. Time to post something looking for help on the forum
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