Originally Posted by t55watson
I have a exhaust brake made by Jacob. Now tell me, do I have a jake brake?
I have the same brand. It is called an Exhaust Brake. Some are by Jacobs and some by PacBrake but they are both essentially an Air Operated Butterfly Valve.
I doubt it can be freed up in place. You will most likely have to remove the two clamps holding it in place, remove the valve and use a penetrating oil etc to try and free it up.
This can be a Can Of Worms as I found out. Getting the valve freed was the easy part. A few hours of squinting, tapping, heating and Bingo.
But, The rest of the Exhaust System was rusted out and ended up changing everything from the Turbo to the muffler. Including the Muffler.
My point is, as the Boy Scouts Motto "Be Prepared"
IMHO, the reason they seize up is from not being used frequently.
Dennis & Carol
2003, 4006, 41' DutchStar,
Spartan, ISC 8.3L W/BanksPower - 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake. And the 04 Bird, Sunshine Car.