DD 8V71, 1980 MCI Crusader II, Emergency Shutoff Damper

[luvrbus]

Owners never maintain the shut off ,the shaft and the seals get  wore so bad enough they pass enough dirt and dust to ruin a engine,it is a old tech that  was around and worked for around 40 years before Detroit changed but they still use the crappy seals in their blowers 

[bluesblake]

"Owners never maintain the shut off ,the shaft and the seals get  wore so bad enough they pass enough dirt and dust to ruin a engine,it is a old tech that  was around and worked for around 40 years before Detroit changed but they still use the crappy seals in their blowers "


What steps would you take with this engine if you were me or it was yours as it were?   

This is a link to pictures of the bus.

https://www.icloud.com/sharedalbum/#B0H5yeZFhDLl4R


The bus is pretty solid.    8V71 Natural, Allison 500 Trans I believe .
New King Bolts, New parts on the steering mechanism, all new Air susp bags, No bad rust,  Has a Cat 8.5 KW gen  with a couple thousand hours on it. All fluids have been changed and bus regularly serviced in that regard for the last 12 years or so by the previous owner.
  Has an on demand propane water heater that works well.   3 AC/Heat pumps on the top. Hydraulic Jack system,  New Cat Coach batteries, Nice inverter setup with 2 big deep cycle batteries as well,

Needs new Radiators sometime in the future, no leaks etc but they are losing some fins .
Needs new Black and grey water tanks right now.
Needs wipers converted to electric.   They work but have some small air leaks.
May need a tire or two sometime in the next year or so.
Coach A/C compressor is not connected to the engine, may be siezed as well.  Guessing a rebuild on that. Which I might think about if we were doing a ton of driving but we are not at this point.


Any and all input much appreciated.