Cumminspr513

Ive recently acquired a 1959 B Fire truck. Looking to do a service on the engine but I'm having a hard time finding part numbers for filters, oil specs and capacities. Engine is an ENF464B. Any help be it part #'s or links would be greatly appreciated. FYI, Ive already reached out to Watts and they had no luck.

So the larger metal canister with the screen in it stays inside the housing? If so what is the best method for getting all the "mung" out that I can see on the inside wall of the housing between it and the canister?

I feel like an idiot for asking but what am I missing that I can't remove my oil bath cartridge from the housing? Truck is a '57 B with 673. The bottom of the housing is off and the wing-nut has been removed and the small filter on the bottom is out but nothing else will budge........little help please.

Guy im new to the world of Macks. Just picked up my 57 B61 this last weekend and am in the process of replacing the drivers lower door hinge. Ive removed the 3 bolts in the door and the 2 in the post. I can see that there is something else holing me up but cant quite figure how to get to it. Thought this would be a quick fix now im stumped......little help please