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Need help choosing a coolant system vacuum filler kit - for heat exchanger upgrade

thesilverbullet

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any recommendations for a budget “one time use” vacuum filler? Looks look they are a dime a dozen…

Will the right kit cover the overflow vent in the expansion tank? or will i need to add a cap or hose \ bolt method to seal this off with any of the kits?

i noticed that some kits come with a cone-shaped rubber universal adapter whereas other have adapters that fit the neck. Will the cone u-adapter seal the overflow vent?

here is a few I’m looking at…

UView 550500 Airlift II Cooling System Refiller, Fast Airlock Elimination, Leak Detection Under Vacuum, Push-Button Valve, Universal Cone Adapter, Efficient Refilling, Heater Core Inclusion https://a.co/d/0bmhHJPO

Mastercool MSC-43012 Cooling System Vacuum Purge And Refill Kit https://a.co/d/0b4cnsQ9

OEMTOOLS 27066 Coolant System Refiller Kit, 3 Adapters | Remove Air Trapped in Cooling System, Test Radiator and Heating Core Lines for Leaks | Fits Radiator Necks and Coolant Reservoirs https://a.co/d/09dq9pVT

OEMTOOLS Coolant Vacuum Refill Kit, Coolant Pressure Tester Kit, 5 Adapter | 70-110 psi Recommended Working Pressure, Performs Vacuum Leak Tests on the Cooling System, Helps Prevent Come-Backs https://a.co/d/0hNyID6u

Mishimoto MMTL-Cool-PR Coolant Vacuum Purge and Refill Tool Kit https://a.co/d/07WJM3mW

https://www.harborfreight.com/cooling-system-test-and-refill-kit-64985.html

Limited-time deal: VEVOR Radiator Vacuum Refill Kit, Automotives Cooling System Vacuum & Purge Fill Tool with Gauge, Portable Radiator Coolant Filling Kit with Toolbox, Universal Fit for Most Cars Vans SUVs and Trucks https://a.co/d/08StjvQH
 
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Jah_Happy

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I did mine with the OEMTOOLS Refill kit. Worked great and was very easy to use.

Edit: the vacuum kit, your 2nd OEM link is the one i have
 

Schantin

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I own this one: https://www.amazon.com/dp/B07VWY1PSP?ref=ppx_yo2ov_dt_b_fed_asin_title

It worked flawlessly on my BMW when I serviced the heat exchanger and radiator. To address one of your Q's - the cone design is so it can seal on a wide range of tank openings.

You'll also need a compressor. I have a couple, but use a "pancake compressor" with the vacuum pump, as it's small and easy to operate.
 

2Cool

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I used a cheap set of hose pinch-off clamps to seal both hoses close to the exchanger to minimize coolant loss, swapped the new exchanger in place, reattached the hoses without removing the clamps, then filled the new exchanger from the vent port on the top with a small funnel and hose. Once filled to overflowing I reinstalled the cap and only then released the hose clamps. Minimal fluid loss, no air pockets, no vacuum draw on the system required. Runs nice and cool.

Clamps I used: https://www.amazon.com/dp/B0CQYDLY26?th=1
 
 






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