CIVIC - New Radiator + OverHeating :( - HELP!

**Lyle_Style** · 20-07-2005 10:00 PM

Hey guys
basically just upgraded from my piece of cardboard radiator to a 3.5inch thick Aluminium Radiator... however now it is running hotter.
I do suspect air bubbles and i am idolings the car and it is still bubbleing a bit with the cap off.

I was told there was a bleed valve to solve this problems safely easily and quickly. My engine is a D15b7. And ANY help would be GREATLY appreciated maybe even some pictures?

If not can i just simply flush all the bubbles out by idolings the car with the cap off and topping it up with ever air escapes?

Regards Lyle

**ECU-MAN** · 20-07-2005 10:55 PM

follow your top radiator hose, look for a 12mm nut with a hole on it,

also make sure your thermo fans are cutting in, you could have forgotten to plug them in.

**Lyle_Style** · 21-07-2005 05:28 AM

yeh mate the fan is plugged in and i have been told about this nut but i am still unable to find it, however this was last night in the dark
so i wil explore it this arvo

how do i bleed the valve from this nut? do i just turn it untill i hear a hissing noise or something similar and do i know that all the air has bleeded once this stoppes?
Cheers Lyle Draper

**wynode** · 21-07-2005 09:13 AM

Undo it till some coolant flows out then do it back up (don't over tighten or you will snap it).

See this thread for more info http://www.ozhonda.com/forum/showthr...hlight=coolant

**EGB16A** · 21-07-2005 02:17 PM

i had this trouble with my 300zx. I just started it cold with the radiator cap off and filled it up till it was full. Takes a few minutes for it to all bubble down, but i never had a problem.... till my thermastat started leaking. stupid nissan

**Weq** · 21-07-2005 06:25 PM

Bleed it properly. open the rad cap and loosen the bleed, start the car and let it warm up. keep pumping the radiator hoses and topping up the coolant. dont stop until the radiator fan comes on atleast twice.

otherwise, ur turbo right? smell the fluid in the overflow, has it got charcole particles through it? or does it smell off? COuld be headgasket.

**Lyle_Style** · 21-07-2005 10:01 PM

Originally Posted by Weq

Bleed it properly. open the rad cap and loosen the bleed, start the car and let it warm up. keep pumping the radiator hoses and topping up the coolant. dont stop until the radiator fan comes on atleast twice.

otherwise, ur turbo right? smell the fluid in the overflow, has it got charcole particles through it? or does it smell off? COuld be headgasket.

Yes correct i am turbo, it would not be head gasket, coolent is fine and the heat only ever started fluctuating when i put in the new radiator, no chascoal foreign matter either. I will do your method though tomorro. Also

should my standard fan + shroud be sufficient on my new radiator as it is 3.5 inch aluminium and my standard one (absolute joke) was the thickness of my finger

Get me to me on some insite

Cheers