I filled the coolant system (with ramps) except about 1 liter of coolant... I think that there is some air somewere! What can I do?
Refilling the cooling system
Thread Starter
Instructor
Joined: May 2013
Posts: 177
Likes: 17
From: Turin Italy
Refilling the cooling system
I have to change the drain petcock. So obviously, I will flush all the coolant. During the refill, how can I be sure to don't left some air bubbles in the cooling system? Exists a proper procedure to fill all the ducts, head passages ecc? thx
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
Do you have a set of ramps? Elevating the front end forces almost all air bubbles to the front, to the highest point. The Rad Cap / Inlet.
After filling cooling system, let it idle for several minutes with Rad Cap off. This allows air to escape.
After filling cooling system, let it idle for several minutes with Rad Cap off. This allows air to escape.
Last edited by HeadsU.P.; Mar 27, 2020 at 01:04 PM.
Melting Slicks
Joined: Apr 2001
Posts: 3,399
Likes: 279
From: Olmsted Falls, Ohio
Unless you complety drain the block there will always be some coolent, or water if you did a flush, left in the engine.
Don't worry about it. Watch the coolent level in the overflow tank. Drive it for awhile.
Don't worry about it. Watch the coolent level in the overflow tank. Drive it for awhile.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
Just run it. Still on ramps, Rad Cap off. It make take quite awhile to "burp".
And may God Bless Italy in these awful times of hardship.
And may God Bless Italy in these awful times of hardship.
Last edited by HeadsU.P.; Mar 28, 2020 at 06:51 PM.
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
Ken is right. It never holds what is advertised unless it's a dry block, rad and system (the heater core is part of that system). Don't over think it. Fill it, warm to operating temp, let it cool then check the level and that's it.
Last edited by CanadaGrant; Mar 28, 2020 at 07:08 PM.
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