Coolant burping procedure

[dun4791]

Anyone have a sure fire way to get the air out of the coolant system after it rushed in the head as the coolant was running all over me? Burp plug by the blower? Dont want to overheat as i have heard these do if you use the standard way of doing it

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[BLK_03]

I've done this about a million times now. First , let it cool all the way.

-remove the overflow tank cap.
-remove x-over tube plug ( on the driver's side of the motor, by the front of the blower....a 1/4 inch ratchet will open it)...all filling should be done here , as it is the highest point of the cooling system
-fill at x-over tube until overflow tank reaches fill level. Stop. Place cap back on over flow tank. Continue filling at X-over tube until full. I actually shake the car, you will see bubbles (read: air) come up. Some actually place the car on an incline or ramps. Place X-over plug back on.
-Set HVAC control to max. hot, start car and allow to idle until thermostat opens. (You can check lower radiator hose for heat to make sure it has), or allow the temp guage to come up to the middle.
-shut car off and allow to COMPLETELY cool.
-Remove x-over tube plug and fill agin.

- you may have to repeat the above a few times... A ford mechanic once told me it takes like half a day to properly "burp" the system w/ all the time needed to let the car cool down.

 

[dun4791]

Perfect instruction Thank you

 

[ILLINI-SVT]

I've heard also that once you run it the first time, when it's heated up and the thermostat is open, give it a 10-sec WOT burst to force the air through the block.

 

[Since 1964]

Wow, what a pain in the ass huh. Glad to know it though. I think I'll copy this down.

 

[Flyn]

I've read of several of the guys having their engines overheat with poor to disastrous results from air in the coolant system.

 

[blubyu]

Blk 03 said it perfectly. Page 5 of the attached document from the service manual describes the procedure for the Cobra.