Burping the cooling system...

[mhb285]

I'm in the process of changing out ALL the hoses in the cooling system & flushing it out as per Bjorn's instruction's in MV Mag.
Do I need to "Burp" the cooling system to get all the air out of the knooks and crannies?
Inquiring minds want to know!
Thanks
Mike

 

[cranetruck]

Refill at a high point, then run the engine until the t-stat opens (180-195F) to circulate the coolant thru the radiator. Now fill the radiator as needed since it will drop some if there were air pockets in the engine. At least that is what I would do and have done....
Bjorn

 

[Jones]

Mine has a plug in the top of the thermostat housing. If yours does too, break it loose a couple of turns and you should get coolant past the threads when all the air is gone.

 

[mhb285]

Got all the hoses changed out today, except the 2 feeding out of the water jacket on the top right side. Anyone know what size they are. I have a piece of 1 1/2" id hose I was going to use for these two but they are a little larger than 1 1/2".....
Anyone know what the petcock on the oil cooler is for? Is it to "burp" the air out of the cooler?
I've got one more flush to go thru on the cooling system before adding the coolant.
I'm adding a NAPA coolant filter to my system to my truck. I've got the output petcock installed on the top engine side, no problem. But, the pipe plug for the return doesn't want to break loose. Any sugestions.

I'm freaking beat!

 

[Armada]

If your truck has a heater, you need to bleed that too. There is a petcock on top of the heater box that the hoses connect to.

 

[mhb285]

I got the petcocks I'm using from my SS heater kit. I'll be installing that next...
Mike