Originally Posted by Erik in sac
Hi guys, I'll do my best, but I wish i had taken some pictures, but I couldn't set the pump down with it apart. much. I was a little messy and I balanced the pump on a glass to catch spillage and hold it up while I worked on it. You will spill a little just by opening the pump up. Not a huge deal. even losing a teaspoon of liquid is a very small % of the total system liquid. Just be forewarned and prepared. Have some paper towels handy
From the bottom, you remove all the silver screw going around the circumference of the pump housing.
After that, the copper plate will come off. Make sure you are holding it higher than the radiator, because a small amount of liquid will dribble out. I used a small needle/syringe to draw water out and saved it in a small glass to pour back in for reassembly.
The next plate is about 1/6" think and it is a snap fit. Its black plastic and has an o-ring and has water flow holes in it. Pry this up from the outer edge with something thin, like a razor blade, or a fingernail will work sometimes.
Once this 0-ring plate is off, you can remove the impeller. This is just like a small fish tank pump. Has about 6 blades on it and the magnet. This rides on a small diameter white plastic shaft. The shaft has two small rubber end caps on it that seat into the pump housing and that cover plate you just removed in the previous step.
What I found was that there was just enough play that the impeller would drag just a bit in certain mounting positions. I looked around my bench and found some 1/6" heat shrink. I cut small sections of that, like 2mm or so. These fit snugly over the shaft pretty good and had enough thickness to effectively shim the impeller/magnet assembly. The pieces went between the rubber end caps and the magnet on one end, and between the impeller and the rubber cap on the other end. Every pump is different and the length of the shims can vary and may not be needed on both sides.
When you reassemble the pump, before you screw the copper plate back on (but after you have the black plastic plate snapped back down and make sure the o-ring is in its groove), tap the pump to knock water down into the lines, then add what liquid you captured earlier (if you did spill or remove any). Then, remount the copper plate and clean and dry all parts of the housing.
Best thing to do is just hook it up to a fan header and test it before mounting it. If you do not have any cooling on your video card since you are doing this mod, you can remove your vid card and boot the PC just for testing the pump. You will just have to hard power it off when your test is done.
Here are a couple of pics I just made to help illustrate the idea. Hope that helps you some. Hope that solves your noise issue. It worked on mine, and its hard to say that all noises are the same, so perform this at your own risk
I just installed a corsair H100 on my CPU and its making a similar noise that goes away when I tap the pump, however it returns after 20 seconds or so. annoying.