just changed antifreeze and temp gauge moves from hot to could alot during driving. guessing there is an air pocket in the line. What is the best way to get the air out of the cooling system? thanks everyone
Best way to purge air out of cooling system? thanks
- Thread starter boostedmklll
- Start date
That's the process. What makes it a little easier and less messy is a cooling system bleeding tool. If that's what it's called anyway...
It's basically a large funnel that gets put in place of your rad cap. You fill up the funnel and let it idle. As the thermostat opens and closes, air bubble cycle through. Be aware, burping the cooling system can be a lengthy process.
EDIT: Link to bleeder
: http://www.amazon.com/Lisle-24610-Spill-Free-Funnel/dp/B001A4EAV0
It's basically a large funnel that gets put in place of your rad cap. You fill up the funnel and let it idle. As the thermostat opens and closes, air bubble cycle through. Be aware, burping the cooling system can be a lengthy process.
EDIT: Link to bleeder
: http://www.amazon.com/Lisle-24610-Spill-Free-Funnel/dp/B001A4EAV0theres quiet a few ways to bleed the cooling system
what i found works best (for me) is putting the cooling system on a vaccum
about 30 minutes of vaccum and its good to go
what i found works best (for me) is putting the cooling system on a vaccum
about 30 minutes of vaccum and its good to go
http://www.matcotools.com/catalog/product/SFF2A/SPILL-FREE-FUNNEL-WITH-GM-ADAPTER/
On flat ground when the engine is cold. The radiator cap is the high spot already. Follow the manual. There should never be an air pocket. When you start it, it will burp. Even when you pour it in slow. Make sure cooolant is in the funnel when you start it.
On flat ground when the engine is cold. The radiator cap is the high spot already. Follow the manual. There should never be an air pocket. When you start it, it will burp. Even when you pour it in slow. Make sure cooolant is in the funnel when you start it.
What Nick said. Much less here:
http://tinyurl.com/8468cs8
What I use these days. There's cheaper ones out there. You need a compressor though.
http://tinyurl.com/7tcggce
That said I drove this this car for over 20 years and never needed to burp it. As long as I filled slowly it always purged itself...
http://tinyurl.com/8468cs8
What I use these days. There's cheaper ones out there. You need a compressor though.
http://tinyurl.com/7tcggce
That said I drove this this car for over 20 years and never needed to burp it. As long as I filled slowly it always purged itself...
Strange. I've never needed to burp any of my 7ms. And I've owned 4 different engines.
Each one worked all air out on its own. :dunno:
Sent from my ADR6400L using Tapatalk
Each one worked all air out on its own. :dunno:
Sent from my ADR6400L using Tapatalk
If you keep purging, then a few days later get the water sound behind the dash, you have a small leak somewhere. And that doesn't mean BHG, it just means air is going in where the coolant is going out.
I had a small leak in my heater core. I didn't know it so I was like you and trying to get all the air out of the system by opening the rad cap and stuff. Check for leaks first. A leak in the heater core is hard to notice. You probably could disconnect the heater core hoses in the engine bay and plug one end and put a gauge on the other, then fill it with air or water. See if it holds.
I used a funnel in the rad, heater to hot fill the funnel to an inch above the rad and let it idle to operating temp, top off as needed, fill the recovery tank and in a few days it will find it's own level.
Greyscorpion;1820323 said:
http://www.matcotools.com/catalog/product/PTK70888/DELUXE-COOLING-SYSTEM-PRESSURE-TESTER/
Don't use it hot or while running. Just pump it up to 18 psi. The leaks become much more obvious. You don't have to get the deluxe set. You just need the ND adapter.
Install this in your rear heater hose across the firewall there across the back of the motor and you will NEVER have to burp it again. The only part of this kit I used is the T fitting that has a threaded cap on top of it to T into that rear coolant line.
http://www.amazon.com/Prestone-AFKIT0-Universal-Flush-Fill/dp/B000CCFY5W
That kit is at just about every autozone or auto parts store. Fill your empty system from that port and you essentially fill up the block and radiator from the bottom up and there will be no bubbles. I had this kit on my last Supra and never once had to burp or do anything with the coolant system. I'm building a new one now and will do the exact same thing.
http://www.amazon.com/Prestone-AFKIT0-Universal-Flush-Fill/dp/B000CCFY5W
That kit is at just about every autozone or auto parts store. Fill your empty system from that port and you essentially fill up the block and radiator from the bottom up and there will be no bubbles. I had this kit on my last Supra and never once had to burp or do anything with the coolant system. I'm building a new one now and will do the exact same thing.