Need feedback on idea for MCP300 mod

eXacto · 04-07-2004, 04:23 PM

I have an MCP300 and since they are prone to leaking from the weak connections where the front aluminum connector mounts on, I figured what if I could hook up a small res in place of that.

If I were to take that front aluminum piece off and put a res right over the hole and seal around the edges would that work? Or does the pump need the enclosure that the alu piece gives it? If that's the case then I could make a flat round plastic piece in the shape of a doughnut that fits inside of the hole, and then put the res over that.

I hope you guys can understand this hah

|kbn| · 04-07-2004, 06:31 PM

Should work....

eXacto · 04-08-2004, 01:18 AM

Another thing... If I do this mod the res/pump will most likely have to be at the bottom of the case. How will I go about filling it, and if I turn off the pump I will have to keep the lid tightly capped on the res or the water will gush out right?

Gooserider · 04-20-2004, 12:28 PM

Never seen that pump so I can't advise you on the mod, but the loop question is easy...

Think about the old experiment from grade school science with the inverted glass in a bucket of water. As long as the open end of the glass stayed underwater, the water in the glass stayed in it. (or a hamster bottle)

Same deal with your res, as long as the pump inlet and the loop return outlet are below water, the water will stay in the loop, no problem. You can even take the cap off and add coolant.

Filling might or might not be easy, depending on the setup. If the pump sucks enough of a vortex to pull in air from the cap area, or the return is splashy enough to be a problem, then filling with the pump running won't work. In that case, I would fill the res, cap it, and run the pump just long enough to get some of the coolant into the loop, then turn it off; uncap and add more cooolant. Repeat as many times as needed to fill the system and get the trapped air out.

If you don't have vortex or splash problems it's easier. Fill the res, turn the pump on, and just keep adding coolant until the loop is full and all the air is out.

Gooserider

eXacto · 04-21-2004, 10:28 PM

Thanks that all makes sense now.

I still need to figure out what I can use for the res. I took the pump with me to Orchard Supply and looked around in the PVC section. The PVC 2" 90* elbow was too small to fit around the mouth of the pump. Next I tried a piece of black piping (forgot the actual name) and the 2" piece just barely fit, but then I realized that I could only get it on about 1mm because the pump outlet plastic was getting in the way.

I also looked around for some tupperware containers but nothing seemed like it would work.

eXacto · 05-01-2004, 01:09 PM

Any other suggestions/ideas out there? I'm completely stuck on this. Surely someone else has done this before.

04-07-2004, 04:23 PM	#1
eXacto Cooling Neophyte Join Date: Oct 2002 Location: San Francisco Posts: 24	Need feedback on idea for MCP300 mod I have an MCP300 and since they are prone to leaking from the weak connections where the front aluminum connector mounts on, I figured what if I could hook up a small res in place of that. If I were to take that front aluminum piece off and put a res right over the hole and seal around the edges would that work? Or does the pump need the enclosure that the alu piece gives it? If that's the case then I could make a flat round plastic piece in the shape of a doughnut that fits inside of the hole, and then put the res over that. I hope you guys can understand this hah

04-20-2004, 12:28 PM	#4
Gooserider Cooling Savant Join Date: Jun 2003 Location: North Billerica, MA, USA Posts: 451	Never seen that pump so I can't advise you on the mod, but the loop question is easy... Think about the old experiment from grade school science with the inverted glass in a bucket of water. As long as the open end of the glass stayed underwater, the water in the glass stayed in it. (or a hamster bottle) Same deal with your res, as long as the pump inlet and the loop return outlet are below water, the water will stay in the loop, no problem. You can even take the cap off and add coolant. Filling might or might not be easy, depending on the setup. If the pump sucks enough of a vortex to pull in air from the cap area, or the return is splashy enough to be a problem, then filling with the pump running won't work. In that case, I would fill the res, cap it, and run the pump just long enough to get some of the coolant into the loop, then turn it off; uncap and add more cooolant. Repeat as many times as needed to fill the system and get the trapped air out. If you don't have vortex or splash problems it's easier. Fill the res, turn the pump on, and just keep adding coolant until the loop is full and all the air is out. Gooserider __________________ Designing system, will have Tyan S2468UGN Dual Athlon MOBO, SCSI HDDS, other goodies. Will run LINUX only. Want to have silent running, minimal fans, and water cooled. Probably not OC'c

04-07-2004, 06:31 PM	#2
\|kbn\| Cooling Savant Join Date: Feb 2004 Location: W. Sussex, UK Posts: 329	Should work....

04-08-2004, 01:18 AM	#3
eXacto Cooling Neophyte Join Date: Oct 2002 Location: San Francisco Posts: 24	Another thing... If I do this mod the res/pump will most likely have to be at the bottom of the case. How will I go about filling it, and if I turn off the pump I will have to keep the lid tightly capped on the res or the water will gush out right?

04-21-2004, 10:28 PM	#5
eXacto Cooling Neophyte Join Date: Oct 2002 Location: San Francisco Posts: 24	Thanks that all makes sense now. I still need to figure out what I can use for the res. I took the pump with me to Orchard Supply and looked around in the PVC section. The PVC 2" 90* elbow was too small to fit around the mouth of the pump. Next I tried a piece of black piping (forgot the actual name) and the 2" piece just barely fit, but then I realized that I could only get it on about 1mm because the pump outlet plastic was getting in the way. I also looked around for some tupperware containers but nothing seemed like it would work.

05-01-2004, 01:09 PM	#6
eXacto Cooling Neophyte Join Date: Oct 2002 Location: San Francisco Posts: 24	Any other suggestions/ideas out there? I'm completely stuck on this. Surely someone else has done this before.

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