PraxRX7

Please advise:

I noticed what seemed to me like a boost leak sound. Well, now that it is winter, I have better located the actual sound is coming from my water pump...it sounds like a whine, I am guessing the bearings are shot.

I figure I can replace the water pump easily enough, but is this enough to change it out?

(Also, I am getting a fluidyne radiator, can the stock water pump handle the extra fluid? (not much).

(Coolant mix to use is the Ethyl Glycol stuff right?)

rx7_turbo2

Replacing the water pump isnt too hard, and I don't see a problem with it and a fluidyne. May I ask you why a fluidyne radiator? Seems like it might be overkill and $$$ when a standard replacement will just as easily meet your needs for a fifth of the price.

PraxRX7

Well...I want something that looks half decent in the engine compartment...something new that will last a long time, something with some kind of warantee or guarantee. I would buy the OEM radiator and put it in, however, I don't trust any of Mazda's stock coolant systems in these cars. I have had overheating problems before...the radiator that is in there is a custom COPPER radiator, which is supposed to be pretty good, but I want something built by a good manufacturer in that specific part.

I am going fluidyne because you usually get what you pay for, and if I can get 4 5ths the longevity out of the fluidyne then I would out of a stock radiator...I dunno

If the fluidyne has more surface area than the one I have in there now, I consider it a fair swap. (If I take the old one out and it is just crudded full of crap that is causeing the heating problem, then I will clean it out, bend back all the fins and not even bother buying a new radiator.

Everything I do this summer depends on what I find when I tear things apart. =)

rx7_turbo2

There are alot of other mods that can be bought for the price difference between a fluidyne and another manufacturer.

You don't have to buy Mazda stuff there are lots of other radiator manufacturers out there that offer a good product and a decent warranty. If you put in a new rad and you still have a heat problem chances are there is something else wrong, putting in a fluidyne wont help. As for the look, once again there are lots of companys that will leave it un-painted and give the same look as the fluidyne.

It's your money of course, but unless your talking race applications, fluidyne is over kill and a major waste of cash.

PraxRX7

What would you recommend then?

rx7_turbo2

I suggest making some phone calls. There is a hundred rad shops in Edmonton. Ask them what they reccomend, get a list of different brands and then get the details about them. I bought mine for $300CDN, it's probably not "the best" but it works just fine. A rad for the most part is a rad. Unless you need it for major race applications.

Find a rad for a reasonable price, get a new water pump, change the thermostat, and you will still be under the cost of a Fluidyne and you'll be closer to fixing the heating problem.