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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHWhat is the Center Radiator Capacity
Leading reported evidence
Fill system
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
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1
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Read evidence and context
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Performed · outcome unconfirmed
The air lift system does a crapy job on a half filled system.
Leading evidence: 'Fill system' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill 3 radiator system is 6 gallons of coolant' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Replace engine last year (heat never got super hot)
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
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Performed · outcome unconfirmed · Original poster
I actually think it is possible I never got all of the air out when I replaced my engine last year (heat never got super hot) using the Air Lift, and your description makes perfect sense (which is why I asked).
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Suggestion
Complete drain and vac fill for my 3 radiator system is 6 gallons of coolant!
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Suggestion · Original poster
The 3 quarts includes everything that came out of the system during the install and filling the new radiator and hoses.
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Suggestion
Just use the "burp valve" and keep filling/topping off the reservoir - it may take a while but eventually it'll be totally full and stable...ask me how I know
Replace engine last year (heat never got super hot)
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Performed · outcome unconfirmed · Original poster
I actually think it is possible I never got all of the air out when I replaced my engine last year (heat never got super hot) using the Air Lift, and your description makes perfect sense (which is why I asked).
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Just use the "burp valve" and keep filling/topping off the reservoir - it may take a while but eventually it'll be totally full and stable...ask me how I know
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14 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Searched, but could not find the answer. Does anyone know how much additional coolant is required when you add the center radiator? I know how much came out when I installed it, but no idea how much needs to go back in. Just trying to get a rough idea of how much I need in the bucket for the air lift.
While I don�t have a solid answer for, it shouldn�t be difficult to figure out if you�ve got the parts (radiator and connecting hoses) on hand. Fill them up with water then dump them into an empty container to figure out how much they hold... I didn�t do this when I did mine, but I would guess that it�s no more than an extra quart or so...
I have a brand new center radiator sitting on my workbench waiting to go onto my car. I can fill it with water tonight and drain it into a measuring can and let you know. I agree with Dporto it's probably not more than 1-2 quarts.
This would have bee the smart thing to do BEFORE I installed everything. If it's just an extra quart or two, I should be fine if I add the same amount that I took out, plus an extra gallon to be safe.
Anyone have any issues with using the air lift for such a small amount? I assume there should not be an issue.
The air lift system does a crapy job on a half filled system. I have used it hundreds of times, and it works best on a near completely empty system.
Using it on a system with too much residual coolant will result in air pockets, due to not being able to achieve a high enough vacuum area in the system.
If you think about it , it makes perfect since. A large vacuum area can draw in a large amount of coolant, and a small vacuum area (even with extremely high vacuum) can only draw in a small amount of coolant.
Also the cooling system has 27 rubber hoses, and a lot of those hoses will collapse when under vacuum of the air lift. The coolant in those hoses will be displaced and if the system has too much residual coolant is left in the system, it will be drawn in the air lift effecting the ability to create a vacuum..
Drain all the coolant you can from the system, then the air lift will work great !!!!
Thanks! So, what is the best procedure to get the air out of a car that is only missing a gallon of coolant? I actually think it is possible I never got all of the air out when I replaced my engine last year (heat never got super hot) using the Air Lift, and your description makes perfect sense (which is why I asked).
Does jacking the back of the car up help when filling?
Just use the "burp valve" and keep filling/topping off the reservoir - it may take a while but eventually it'll be totally full and stable...ask me how I know
While it might be a moot point now out of curiosity I did fill mine with water and the capacity is approximately 1/2 liter or 1 pint. This does not include any hose volume, just the center radiator itself.
I do agree with the above...Airlift will not work well on a system that is not empty or nearly empty.
^^ Seems about right... add the hoses and you've got about a quart or maybe a little more. After I did all my engine work (I drained/saved about 2.5 - 3 gallons of coolant - and probably lost a half gallon that leaked out of the lines/hoses over time) it took me about 5 or 6 drives - topping off before each one to get the system totally stable. It only took 4-6 oz. to top off the reservoir each time I did it, and the car never got "hot" (no lights, needle never got past the left side of the 0 in 180) while driving. ** All this being said, it'd obviously be a good idea to get this all worked out before taking it to the track.
Yeah. Two weeks before the next track day, so "should" be okay. And if I get done today, my wife gets her garage space back, which will make her happy. Stupid house with only two garages.
Okay, just filled everything back up. And the answer is 3 quarts. The 3 quarts includes everything that came out of the system during the install and filling the new radiator and hoses. Now, it is possible I had some air in the system from the engine install, because for the first time in a while, I have hot heat again.
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