sbrmechanic

Gosh damnit i took out my stock radiator because the overflow kept getting full (this radiator is very old and should have been replaced anyways) so then i throw on a dual core aluminum radiator off my old rx7 that i know works and now there is steam shooting out of the radiator cap do i just need a new radiator cap?

dwb87

iTrader: (22)

Yes... I'd start there. And when was the last time you serviced your cooling system??

RotaryEvolution

iTrader: (30)

replace the radiator cap then your motor.

the order can be switched if you want.

marshall13B

iTrader: (5)

They speak the truth lol. One tool I found very useful being a Rotary Owner (and an auto tech) is a coolant system pressure tester. Here is a quicky example of what you'd be looking to get off amazon. But if it makes you money (like me) buy a quality one you can use everyday for a couple years at least.

Jet-Lee

iTrader: (1)

Check for the champagne.

Start saving to rebuild your motor.

sbrmechanic

im rebuilding a 13b at the moment but what is this talk about rebuilding?

Bjeralds

iTrader: (1)

I believe what they are saying is that your motor could have overheated, thereby warping and compromising the coolant seal. And that the compression fom the rotors is getting into your coolant passage. I cant comment on the likelyhood of this due to lack of knowledge. Just giving my two cents.

RotaryEvolution

iTrader: (30)

why do cars in general spew coolant from the overflow tank? they're overheating or pushing compression into the cooling system. if you're lucky it may be the prior and you have a short few chances to correct it before the latter. if the radiator cap is holding pressure appropriately then it is already the latter.

misterstyx69

iTrader: (142)

Drink some Champagne.
you get to upgrade to a Better engine!

sbrmechanic

thank you guys it makes sense now,i guess my stock temp gauge must be off or something because i would never let my rx7 overheat and trust me i glance down at that gauge at leat once every 10 seconds

RotaryEvolution

iTrader: (30)

then that pretty much rules out the system being overpressurized by the coolant boiling and for the most part limits it to combustion gasses. does the upper radiator hose get very firm within a minute or 2 of starting a cold engine? if yes then you have the answer.

Jet-Lee

iTrader: (1)

Indeed!

Beer is a good substitute to champagne though.

311unity13B

bye bye engine. same thing happened to me. start pricing a rebuild if you didnt damage the engine already.

sbrmechanic

i have two spare engine (one that im currently rebuilding) so im gunna throw that one in when this one goes, i wanna see if i can make it to seven stock first tho, just add coolant every thirty minutes haha

and nice name 311unity13b i was at the three eleven unity tour concert last night