Hi, Sorry for the newbie question but I searched and did not find anything conclusive.

I just reinstalled the radiator (had to get it re-welded) and I was bleeding the air as filled the radiator (the middle one; the pic is from the cooling FAQ section) and it started to get a bit hot and spewing fluid, so I turned it off. I have done flushes on my rx8 with no problem.

Am I filling in the right place? or should I fill at the neck by the battery?
Thanks

 

you should fill at the highest point of your system..could be the AST or the filler neck. Either way you will still probably need to burp your system repeatedly with the caps closed. Also when cool, fill until tube behind TB flows...that will purge more air from system.

 

Use distilled water or demineralized and Prestone. With engine off and cold, both fill & air tank caps off, overflow bottle cap popped off.

Fill in filler neck, have a clock w/second hand by and a way to poor easily. Take your time and go slow, no more than .75-1.0qt. per minute. Take your time. Every now and then give your rad hose a little squeeze, easily, and let off easily. Listen for air gurggles. TAKE YOUR TIME till full. You shouldnt have any air.

 

if your filling from the labeled filler neck, then yes your filling from the right spot. on a car with a stock AST i would remove the cap and pour coolant into the filler neck. your car should take about 2 jugs depending if your whole system was flushed.

 

I would also pump the hoses to move air

 

i forgot to mention this also.

 

remember to crank your heater on full aswell

 

Wow thanks for the quick responses.
My system is not stock so I'll see which point is the highest and fill there. I also just bought the "no spill coolant funnel" today and should arrive tomorrow.

I normally just fill and let the air bubbles escape but according the FSM I should:

1)Slowly fill the highest point (Need to check)
2)Fill coolant reservoir
3)Put cap back on filler neck
4)Run the car to operating temperature.
5)Turn off car and let it cool off.
6)Check the coolant levels (Fill as necessary)
7)Repeat steps above until levels don't drop off anymore.

Did I get that correct?

 

the above is pretty much spot on but crank your heater on full while your getting the car to operating temp

 

Coolant Vacuum Refiller and Lisle Coolant funnel are your friends.

:-) neil

http://www.ntxtools.com/network-tool...ROB-75260.html
http://www.google.com/products/catal...d=0CDAQ8wIwAg#

 

I bought the lisle coolant funnel yesterday, and waiting for it to arrive.

 

I do this when refilling. Never need to refill twice. I detach this hose and let it bleed off excess air. It doesn't usually actually have coolant come out of it unless the car is low in the rear, but it aids filling immensly.

 

There is an excellent thread on the FD coolant system, filling, bleeding/burping etc in the FAQ thread stickied in this forum. Might want to read it to learn a bit more about this topic.

 

Holding steady at 83 degrees.
Turned it off and waiting for the second round.

 

Don't understand this advice... the heater core always passes the full amount of coolant through it whether the heater control is at "cold" or "hot." There is no coolant valve, only air flaps.

 

It looks like I'm back in full effect. Thank you all for the help.
I guess I should stop playing with the car and studying for my Contract and Civil Procedure Mid-Term.
Lame =/

 

Quite honestly, i dont get it either and am only going off what iv read in other coolant threads where its been recommended you crank your heater on full when filling the coolant.

Iv always done it (as i read i should) and havent had any problems.(obviously the lack of problems has nothing to do with me putting the heater on though LOL)

But yea, you learn something new everyday. Thanks

 

Same here, but if it works then I don't question it. lol

 

in effect, the heater core serves as an additional radiator. there are additional lines that run between the engine and heater core. when you turn the **** to full heat you enable coolant to flow thru the heater core. so in effect, when the engine is running hot, you could turn the heat **** to full and fan to full to help reduce water temp. NOTE: this will marginally reduce water temps.

 

Refer to the FSM suppliment (19xx Body Electrical Troubleshooting Manual), Section G, pg G-31+ for additional information regarding the Heater Core and supply/return hoses.

 

The statement is correct except for the portion I put in bold print. There is no valve anywhere in the coolant path through the heater core. Look at page G-33 (in the 1994 manual) and see that item 4 (the heater core) has no valve in series. All temperature control is done by controlling air flaps. It is certainly true that when set to hot, heat will be removed from the heater core, and will have a slight cooling effect on the coolant exiting the core. (The Miata is the same as the RX-7 in this respect.) With respect to filling the cooling system, the position of the temperature control has no effect at all.