Recent content by TD25C

How do I know which line is on the coolant side? Does anyone have a coolant flow chart? I believe it is a Series I NTC400.

Thanks for all the advice. I haven't been able to get back in the shop to tear into it.

I have a 79' M920 with the Cummins 400 Big Cam. After a recent haul I discovered a blackish gray liquid coming out of my radiator overflow. When running It seems that the truck is pumping oil into the cooling system somewhere. When the truck is shut off the oil/water settles back into the oil...

Goodguyzy, I have seen this schematic on some posts before but didn't know if this was the same as the M920 wiring? It looks like the one posted above is for an M915?? Or at least thats what is lists in the lower right hand corner. Is the wiring the same for the 2 trucks?

I'm trying to track down some electrical issues with my M920. When I look in TM 273-20 under Appendix D - Schematic Diagrams it say that "The fold-outs in this technical publication are not available. Please refer to your paper or microfiche copy as appropriate." Does anyone know where this...