Aftermarket Coolant Overflow tank

[djdrock]

I replaced the overflow tank on my 91 back on 05 and it is leaking again. Though spending $80 is not a huge deal, but I am looking for a better solution. The SOS tank for almost $300 seems a little high, so has anybody seen these or have any input?

http://cgi.ebay.com/ebaymotors/WEAPON-R-COOLANT-OVERFLOW-CATCH-TANK-CAN-UNIVERSAL-24-_W0QQcmdZViewItemQQfitsZModelQ3aNSXQQhashZitem45f7792a8fQQitemZ300504656527QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
http://cgi.ebay.com/ebaymotors/WEAPON-R-COOLANT-OVERFLOW-CATCH-TANK-CAN-UNIVERSAL-18OZ-_W0QQcmdZViewItemQQfitsZModelQ3aNSXQQhashZitem439ee51f52QQitemZ290428624722QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

 

[Briank]

The tanks on ebay will not work, they are too small and are not designed to hold pressure. The NSX milk jug is not an overflow its an expansion tank so the size is important.

 

[djdrock]

Thanks for the info Brian. I spoke with my dealership, and they (of course) recommend changing the fluid when changing out the tank as to avoid air pockets. It has been apx 50K miles since I changed the coolant, so would you recommend doing this?

 

[Briank]

50K, how many years? I don't remember the service interval but if its 5 years I would say its time. Changing the coolant tank will not introduce air any amount of bubbles into the system. Draining the system will fill it with air. I really love the things the dealer will say to bump up the service ticket. My local dealer has a service writer that calls every slow tire leak a bead leak even after you point out a nail in the tread of the tire.

 

[djdrock]

50K, how many years? I don't remember the service interval but if its 5 years I would say its time. Changing the coolant tank will not introduce air any amount of bubbles into the system. Draining the system will fill it with air. I really love the things the dealer will say to bump up the service ticket. My local dealer has a service writer that calls every slow tire leak a bead leak even after you point out a nail in the tread of the tire.

Honestly, I have always liked my Acura dealership. I even take my MR2 there. Recently, they seem to be a little less honest and knowledgable. It is because they want $300 dollars to replace rear brake pads and to turn the rotors that I am going to do it myself. When I asked them recently about an issue I have had with my air conditioner, I found myself teaching the service advisor about the upgrade from r-12 to r-134. Honestly, he has NEVER heard of that needing to be done. Pretty scary. This is not a unique thing to an NSX.

It has been 5 year since the flush, so I should probably have it done.

Brian...let me ask you your opinion on my A/C issue. While I rarely use the A/C in my NSX, I do find it nice to have from time to time. For years, when running my A/C, it has always had the following issue. It starts out ice cold. It stays this way for quite a while, say 10-20 minutes (depending on how hot it is outside), but then I get vapor out of one of my vents. Now I know this can be a tell-tell sign for it being low on freon, but the dealership told me years ago the freon level was fine. The A/C, when "misting" feels less cold, almost like a humid air in the cabin. If I shut it off for a few minutes or longer, then turn it back on, it is fine again for another 10-20 minutes. To me, it sounds like something is freezing up and it needs to thaw in order for it to operate normally, even if for only 10-20 minutes.. Might you have any ideas? Is there a sensor that could be malfunctioning that is causing it to freeze up thus causing the issue?

btw...I got my CC unit from you in the mail. Thank you. I will be installing it on Friday.

Thanks as always!

 

[Briank]

Sounds like the coil is frezzing up so you may be just a little low on freon. But there is a coil temp sensor that should shut down the compressor when the air gets to cold.

 

[djdrock]

I'll have them check the freon again. Do you know where the coil temp sensor is located?

 

[Briank]

I'll have them check the freon again. Do you know where the coil temp sensor is located?

In the white box under the dash between the heating and cooling coils.

 

[djdrock]

Brian...if I am not mistaken, the location of this sensor is NOT in a good location...meaning...the dash needs taken apart, correct? I can't find any information on prime regarding the repacement of this part. Essentially, I want to have as much information/ammunition with the dealership as possible. Thanks again!