Big B

what would make my stock radiator crack across the top?i know heat,but what would cause that much heat and pressure.

scotty305

iTrader: (2)

If it's your stock radiator, the end tanks are plastic, which will crack eventually. The car is at least 11 years old, and coolant temps are usually 200-230 *F, with pressures of 10-13psi. If you search, someone posted a great deal on an aluminum radiator about a year ago. I think the brand name was CSR , and it was cheaper than the Koyo and Fluidyne radiators.

Good Luck,
-s-

adam c

iTrader: (2)

The stock radiator isn't a very good design. Very small, and prone to cracking. If it was the original, you are fortunate to have had it last this long.

scotty305

iTrader: (2)

I found that old thread, about the CSF radiator:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/wow-%24214-aluminum-radiator-344771/


-s-

Big B

thanks on the thread,but why did my radiator blow the way it did?it was like someone threw a bucket of water on my car.would the caps have anything to do with it or are the stock radiators that ******* cheap

recon fd

The stock radiator has plastic ends that are like glued and clipped on the top and botom. Yes it is a bit cheap. I just replaced mine tonight with a koyo.

Big B

I Just Need To Get Home,radiator Was My Next Mod,talk About Bad Luck

scotty305

iTrader: (2)

Karma maybe?
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/bucking-150-a-470327/

Do you still have an FMIC? The added heat would put plenty of stress on the cooling system. What are your water temps?

Good luck,
-s-

DaveW

Running without (much) antifreeze will raise the cooling-system pressure and possibly lead to earlier coolant-pressure-related problems, such as cracked rad end-caps, burst hoses, etc. Water wetter, etc., will not raise coolant boiling point or reduce system pressure.

Big B

Karma?wow you went way back with that one.maybe i took more roids and the pressure from my muscle growing caused the radiator to blow.thanks scotty,if you want to get beamed up 2 way me and maybe i can get you there.how do you like it clear or white.no hard feelings huh

Big B

i did notice that one of my caps was torn up.still have the ast,what caps should i use on both mazda says 16lbs and others say 13

Big B

scotty,no hard feelings those people really pissed me off that day.everybody wanted to be a comedian and noone wanted to give some advice