@epalama1 not sure how far you have gone... just a warning to not go too far on this LCS. If you do NOT have any visible signs of a leak, you may not want to open it. This was my only sign of corrosion, which may be from condensation.
My G5 quad does not boot all the way, I can get ASD to boot but it soon freezes... the top pump is warm to the touch. I was suspecting a pump or coolant blockage, so I delved into the flush and rebuild.
I simply cut the 4 top hoses coming out of the pumps and drained it into a bucket. Poured it into a drinking bottle to look at sediment. There is some cloudiness there.
Into the wash tub, and filled an one gallon bucket with hot water and vinegar, run the pumps with an old UPS battery.
Both pumps seemed strong and similar level of acoustics, so assumed they are both good. This power pinout is from another site:
There was more sediment from the vinegar flush.
The next rinse was just hot tap water. I know I should rinse with distilled water, but I have to check some other things first. I removed the cut off pieces of original tubing, to find the pumps have a 0.25" inside diameter. The radiator also has 0.25" ID. However, the long S-tube has what I consider a flow-restrictor or some type of noise reduction device? A long silicone string held in by two plugs.
The ID of the plug is 0.18", so close to a 50% reduction in orifice surface opening per inches-squared (0.1963 vs 0.1017). I had to remove the S-pipe from the CPU block, and found the accordion tube is covering a silicon sleeve. The opening on the CPU block is also 0.25".
Trying to figure out a way to refill this closed loop when there is no tap on it. I carved off the rubber on the black radiator pin (see above pic), but there is a hard white plastic pin underneath it. I didn't push further. I figured I could get something to work if I put a tee in somewhere. Looking at the S-pipe, it also has a black rubber pin (assuming it has a hard plastic pin underneath, seen in same photo above).
Engineered correctly or over-engineered to not leak as much, this is definitely a very tricky LCS: silicone sleeves, weird inserts, and useless epoxy that is not actually sicking to rubber or metal.
but wanted to know if I had the epoxied version or not. In the pictures, you can see a substance around the edges of the (pumps)? I don't know if this is epoxy or the "O" ring. Also, is there a gold-standard type of guide that someone has made for changing out the Dexcool inside? Thanks in advance for the help!
