CherokeeMan90

Whats the easiest way to make sure to get all the air out on a closed system. I have to put coolant back into my system since i changed radiator and hoses.

djb383

Let it idle 'til t-stat opens, with the cap off the bottle, keeping an eye on the coolant level in the bottle.

CherokeeMan90

what level should it be at in the bottle? i didn't see a cool or hot line on the bottle.

jakbob

For oldie renix;

1, back up onto hill, the steeper the better.
2. Get the motor to temp, so the thermostat opens.
3. Shut motor off.
4. Take off temperature sender on the back side of the head.
5. Uncap pressure bottle
6. When nothing but coolant comes out, put the temp sender back in.


I had to do this today. The most important part is the hill. Need to make the hole in the back of the head the highest point so the air shoots out.

CherokeeMan90

wish i had that option but i don't.

cruiser54

The center of the bottle is the level you want. Look down into the bottle and you'll see you want coolant a bit above the standpipe in there.

Even on level ground, if you loose up your temp sender at the back of the head and fill the bottle til you get no more air out around the sender, you're okay.

All this being said, I just do what djb383 recommends. I've never had an issue.

CherokeeMan90

ok. if i do the temp sender deal how far down the back of the head is it? and is it easy to reach from the top side?

jakbob

all the way on the back of the head, drivers side. brass colored. 13mm deep socket to take it off (in the pic, there is a line in the way, but the yellow arrow shows the location

CherokeeMan90

Ok. That a photo of your engine? If so i have some questions.