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-   -   Does this mean I need a new radiator? (https://www.rx8club.com/series-i-trouble-shooting-95/does-mean-i-need-new-radiator-211808/)

987HYS 02-12-2011 02:52 PM

Does this mean I need a new radiator?
 
2 Attachment(s)
For the last few weeks I have had a slow coolant leak which has progressivley gotten worse. I have parked the car for the last few weeks due to incliment weather and have just gotten around to identifing the problem.

As I took the coolant overflow tank out, the last bit of coolant leaked out from the bottom of the tank and I found this... the rest of the return nozzle is stuck in the hose from the tank to the radiator.

Is there an easy fix for this or does this mean I have to swap for a new radiator??

Attachment 248695

Attachment 248696

Thanks for all your help...

invasion08 02-12-2011 03:29 PM

looks like you will need a new one

dannobre 02-12-2011 03:45 PM

Yup.....new radiator time :)

987HYS 02-12-2011 06:21 PM

humm... no cheap fix huh?

paimon.soror 02-12-2011 06:23 PM

Sure is a lot of rust forming under there

dannobre 02-12-2011 06:30 PM

Likely the tank is getting weak....

Any fix would be shakey at best....not worth having a catostrophic failure and loosing a motor :)

An OEM replacement would be $300 or less and if you can do it yourself it wouldn't be too bad

987HYS 02-12-2011 06:31 PM

not so much rust, just dirty..

987HYS 02-12-2011 06:38 PM


Originally Posted by dannobre (Post 3879556)
Likely the tank is getting weak....

Any fix would be shakey at best....not worth having a catostrophic failure and loosing a motor :)

An OEM replacement would be $300 or less and if you can do it yourself it wouldn't be too bad

yea, good point. I can do the install myself so i'm not worried about that.

Grace_Excel 02-12-2011 10:03 PM


Originally Posted by dannobre (Post 3879556)
Likely the tank is getting weak... An OEM replacement would be $300 or less and if you can do it yourself it wouldn't be too bad

I opted for the ($230) Mishimoto brand bought through eBay two years ago after 108,000. It was a pretty snug fit compared to the OEM, a few have suggested BHR's also.

9krpmrx8 02-14-2011 09:11 AM

Same place mine broke during a run when the water pump belt broke. Don't cheap out dude unless you absolutely have too. I bought the Koyo and have regretted it ever since. It's barely as capable as the stock one.

987HYS 02-14-2011 11:03 AM

Soooooo.... No go on the koyo???

9krpmrx8 02-14-2011 11:12 AM


Originally Posted by 987HYS (Post 3880762)
Soooooo.... No go on the koyo???


No. I was actually seeing higher average temps (only slightly higher but still) in my data logs than I was with the factory rad. I have the Cobb turning the fans on earlier now and it's doing fine but we will see how it goes when it gets hotter. I plan on just ditching the Koyo and getting the Ron Davis just to be safe.

The mishimoto shroud looks nice but I have read bad things about the fitment of the mishimotos on several cars. Not worth the hassle, it is a tight fit as is.

Grace_Excel 02-14-2011 06:44 PM


Originally Posted by 9krpmrx8 (Post 3880767)
The mishimoto shroud looks nice but I have read bad things about the fitment of the mishimotos on several cars. Not worth the hassle, it is a tight fit as is.

It's not much of a hassle, mine fit just fine and I've had mine for 18 months. The top hanger is at a slight right-angle and a simple modification would do. Look at the third picture... I flipped the nut to hold the radiator on the hanger while I work with the bottom brackets. I had to buy a regular nut instead of that stock with the flat bottom to make the fitment.

http://a7.sphotos.ak.fbcdn.net/hphot..._7207369_n.jpg

http://a1.sphotos.ak.fbcdn.net/hphot..._2573270_n.jpg

http://a3.sphotos.ak.fbcdn.net/hphot..._7070572_n.jpg

http://a5.sphotos.ak.fbcdn.net/hphot..._5439803_n.jpg

http://a6.sphotos.ak.fbcdn.net/hphot..._7270953_n.jpg

http://a4.sphotos.ak.fbcdn.net/hphot..._2310890_n.jpg

http://a7.sphotos.ak.fbcdn.net/hphot..._3103401_n.jpg

http://a1.sphotos.ak.fbcdn.net/hphot..._8000550_n.jpg

9krpmrx8 02-15-2011 12:34 AM

I meant too much of a hassle for little benefit when you can buy a proven one that fits perfect and actually cools better. Your Mishimoto may have fit okay buy I have seen some that are way off. That's the point, you never know what you are going to get from them.


Here is one example from a two second search.

https://www.rx8club.com/showthread.p...ight=mishimoto

https://www.rx8club.com/attachment.p...1&d=1255720206

darnellm 02-16-2011 05:29 PM

I have a lightly used Ron Davis rad for sale
PM if interested

Grace_Excel 02-17-2011 02:25 AM


Originally Posted by 9krpmrx8 (Post 3881566)
I meant too much of a hassle for little benefit when you can buy a proven one that fits perfect and actually cools better. Your Mishimoto may have fit okay buy I have seen some that are way off. That's the point, you never know what you are going to get from them.

Here is one example from a two second search.

https://www.rx8club.com/showthread.p...ight=mishimoto


Originally Posted by ObliqueFD (Post 3442095)
Mishimoto provided a replacement that is straight and now installed in my 8. The fan assembly bolted right up to the new one without any issues. The upper radiator mounts aren't angled correctly though, so I need to fab some brackets. It still could have been designed better, but for the money it was a good choice I suppose.

Don't be a pessimist, his fit the same as mine did... :bigok:

PirateARRRX8 02-18-2011 03:25 PM

i've had a mishimoto rad for right around 8 months now, and i've had no problems what so ever. it fit in just right (it's a bit bigger than stock, so of course it's gonna be a little tighter) and has kept my temps low. i've also heard really good things about the ron davis, but the price difference in these 2 radiators is pretty big.. especially considering the mishi has a lifetime warranty.


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