I put mine on the shelf. I'll get back to it later. I clearly have a blockage in one of the halves. If I blow compressed air through the flow rate will increase to match the good half for a while but then it slows again to maybe 1/2 the rate of the good half. I ran vinegar, aluminum safe...
Oddly I only got 250ml out of both of my radiators. Before I disassembled I could hear coolant moving if I shook the assembly which implied the presence of air. No leaks.
I'm flushing them using a submersible pump and a warm vinegar solution and I definitely appeared to have a blockage on...
@CircuitBored Thanks for the pics/writeup. I'm taking mine apart at present.
I'm actually having serious issues with my Quad, detailed here. To be honest I'm not expecting this cooler rebuild to fix the chronic open-firmware instability and inability to boot ASD issues though maybe...