Technical Brake Question

Hey folks. I have a 56 Buick Century non power brakes Original brake components. Question is CAN YOU CLEAN THE CHECK VALVE AND THE JUNCTION BLOCK ASSEMBLY. OR IF ANYBODY KNOW WHERE CAN YOU GET ONE. THANKS

 

I think spell check screwed up your post. Doesn't make any sense.

 

I just did. My phone is touchy this morning

 

The check valve ? Should be a new one in the master cylinder kit. All metal parts can be cleaned in carb cleaner or similar bath.