NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   Hasn't overheated... (https://www.nopistons.com/1st-generation-specific-16/hasnt-overheated-891/)

falcoln 01-19-2002 10:30 AM

Hello again...I got my radiator cored out a while back...

It seems to keep my car from overheating...but...

On occasion I'll pop the hood after I get home and I have a massive ammount of foam and crap coming out of my overflow tank...thru the tiny hole in the lid

Somehow my radiator system doesn't seem to be working...it doesn't take fluid out of the overflow...I have to add it into the radiator on occasion or it will start to run too hot...



I'm also getting a strange sound...almost like water or something...in 4th gear when I hit right at 50 mph...comes out of the tail pipes...could just be normal engine sounds...I dunno



I'm not having any other unusual problems right now...I'll let you guys know if I am...later



Adam

Wooffinn 01-21-2002 05:29 AM

Hi Falcoln, wooffinn here. Usually your problem with the water not drawing in to the radiator will be a radiator cap not working properly. It can be the seals or the springs. If you have a local mechanic he could pressure test for you.It should release pressure around 13 psi give or take. Your welcome to come to my workshop but the large expanse of water between us is a problem!

The foaming may be just from a air lock in the cooling system. Just wait for it to cool down and bleed the system by running the engine with your cap off.

I'd like to say that was it's only problem but unfortunately it sounds like a internal water oring may be blown out and very close to it. Sorry to give you bad news but what are mechanics for.

Rotors, as all internal combustion engines, will emit some water from the exhaust but it's usually when it's cold or in humid weather. Basically it's a product of the process.

I've had a couple of rare problems of water pumps leaking/sucking air into systems when they're cold but I don't think it's your problem.

That's a educated guess without seeing it; I hope it's not the motor. ???


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