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Old 09-21-2008, 05:09 PM
BMM BMM is offline
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Preventing air in cooling system.

Hey guys, this isn't related to HotRod, but this is the best place for actual info, so.

My brothers rad blew on his 92 Eagle Talon, not turbocharged. I told him if he gets a rad, Id put it in for him. I just want to make sure I dont trap in the system and cause him more problems.

Someone told me to rill the resevoir tank up, leave the cap off the rad and let it run and bubble up, and keep filling the reso tank until it stops bubbling.

Is this correct?

thanks alot.

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Old 09-21-2008, 08:28 PM
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They fill pretty easy after you do that drive it for a complete drive cycle get it good and warm and check it again.
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Old 09-21-2008, 08:32 PM
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If you've got ramps it might help to try and elevate the nose as much as you can, -so as to try to make radiator and overflow resevoir the highest point in the system for air pocket to migrate to (and hopefully exit).-Jim
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Old 09-21-2008, 08:39 PM
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The whole point of the reservoir is to eliminate air. It is the highest point. What will happen is the first thing to be pushed into the reservoir as it heats up is the air. The air bubbles to the top so when it cools down it sucks coolant back in.

Fill it to the "Hot" line when you initially fill it. Drive it, get it good and hot, and my guess is that you will notice that the reservoir is a little lower. Refill it to the hot line and you should be done.
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