I have a question about a M/D truck cummins set up , I have run across a T 6B5. 9 out of a 1989 GMC school buss that has a Bosch VP-14 pump on it, the pump looks like a rotary vane type but mechanical. Can any one tell me any thing about this pump, can any mods be preformed on this type of a set up. I can pick this engine up for a song. I have some numbers off of the tag CPL of 0804 and engine# of 44386437 , any help would be appreciated.


