What is this valve for
 

What is this valve for

Started by solardude, May 04, 2018, 10:15:01 PM

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solardude

After reading more of the maintenance manual, I stumbled across a section that described where the hour meter was for the engine. I wen looking for it, no luck finding a engine hour meter, but I found a valve that I could not figure out what it does..

Anyone recognize this one? It is located just above the reserve oil can in the engine bay.
Jeff
1993 MCI 102C3
Cummins L10/Allison ATEC
Twin Cities, MN.

chessie4905

The bottom looks like a shutoff valve lever. Fuel or air? Follow the metal lines to it's source or termination.
GMC h8h 649#028 (4905)
Pennsylvania-central

brmax

Many had that air valve shut off for the a/c compresser, air cylinder - auto adjust.  And another for again air cylinder adjusting the squirrel fan belt / upper gear box. I cannot tell which side that is though.
Possibly any of these or even routing to air shutters from a thermostat valve.


Its coffee time

Floyd
1992 MC9
6V92
Allison

buswarrior

Control for pneumatic belt tensione

Happy coaching
Buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift