Glensts Posted February 26, 2015 Share Posted February 26, 2015 On my 97 Macks they have the crappy engine brake plus the butterfly valve in the exhaust that is closed with an air cylinder.It works OK but I have a cylinder thats weak and the ball joint assembly is wore out. Mack says they can't get parts for it .Any one have any ideas where to get the air cylinder for it that is air to stroke out and it pulls back on its own. Maybe a spring in there but I"m not sureGlen Quote Link to comment Share on other sites More sharing options...
41180 Posted February 26, 2015 Share Posted February 26, 2015 Pacbrake Quote Link to comment Share on other sites More sharing options...
farmer52 Posted February 26, 2015 Share Posted February 26, 2015 Blue Ox Exhaust Brake?www.brakesystemsinc.com Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment Share on other sites More sharing options...
thomastractorsvc Posted February 26, 2015 Share Posted February 26, 2015 See if you can find the Mack part number and cross it to PACBrake OEMSOLENOID-CROSSOVER.pdf Quote Robert"I reject your reality and substitute my own." Link to comment Share on other sites More sharing options...
Superdog Posted February 26, 2015 Share Posted February 26, 2015 Blue Ox Exhaust Brake?www.brakesystemsinc.comThose were the Jacobs "Stealth" engine brake. Had one on my '97 CH, Mite as well stuck an umbrella out the window,would have worked better and sure as hell would have made more noise. 1 Quote Link to comment Share on other sites More sharing options...
41180 Posted February 26, 2015 Share Posted February 26, 2015 My brother liked his on the CL he had . it was real bad when the stealth didn't work . with the stealth it was better than a regular mack Jake . that's his opinion anyway . Quote Link to comment Share on other sites More sharing options...
Glensts Posted February 27, 2015 Author Share Posted February 27, 2015 Well the Blue Ox exhaust brake looks almost identical. Mack called me back to day and the air cylinder is available. They're in Chicago and Baltimore I think he said.Whatever, should be here next week. The exhaust brake is better than the old Dynatard on the R models but it sure is lacking for being a real "great" brakeThanks for the info guys Quote Link to comment Share on other sites More sharing options...
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