Which direction closes this heater hose valve on N14?

Only two valves, correct. I think the rear valve is the one giving me issues. I think both valves are the same thread size so I’ll change both. Hose looks to be 5/8”.

 

Front valve’s hose runs back to the sleeper. Rear valve’s hose, runs to the heater core. They’re just making the big loop. I’m assuming, the flow is from the rear valve to the heater core, then to the sleeper’s heater core, then back to the thermostat valve, at the front of the engine.

 

Do you guys know, if that’s 5/8” male threads and 5/8” female threads, for the hose barb?

 

Got it fixed. Replaced the rear valve and heater hoses. Preciate ya’ll.