DAYUAN Cooling System Coolant Vacuum Purge and Refill Kit Automotive Pneumatic Antifreeze Filler with 4 Sizes Adapter Case Hose

After replacing the cam belt and water pump on my 2015 Transit Connect, I had endless problems with air in the cooling system especially the heater. Manually venting the system didn’t help as the heater is higher than the vent resulting in an air pocket which wouldn’t go away.The vacuum/ refill process worked perfectly and has cured the issue.One little tip: The Ford plastic header tank has a small internal drain aperture which needs blanking off with a self tapping screw.If you don’t do this, it won’t vac down.Don’t forget to take it out once completed!

Good product

On the picture seller has fixture made from aluminium, sent out made of plastic.

So. I’m a pretty good amateur mechanic, who likes to buy/ use more expensive tool. However, the laser one which is £100 more looked nearly identical. So thought I’d give this a go.Works great.For reference. This fits a 93 triumph tiger 900 Rad. - It’s snug without cramping it up with the thread, but works.The OD on the main unit is 32mm my tiger is 31mm so was snug. I used a set of plumbers grips to GENTLY tighten against the rad housing.Two things- it comes with the cone bung even though I don’t remember reading it did.- probably missed that, which was a bonus.It’s also wise to buy a meter of clear hose with a 10mm of and a jubilee clamp for the air exhaust/ outlet as it doesn’t come with one.I also suggest you have some mole/ vice grips to blank off the hose- I sucked the fluid up the inlet hose to the brass fitting and crimped it off - meaning you don’t suck air in before coolant.It took me two attempt- one to learn and one to do. I suggest draining the system fully, first.I would also use these on the expansion tank in/ out, too.For the money, I wouldn’t spend anymore.Also this has a shorter metal burl on the bung which allows for small rads, like mine,

Best item I’ve bought for a long time and worth every penny. I was so pleased with it. I’ve used it several times and has been brilliant.

Lost a star only because it comes with an air line fitting that I have never seen / matches non of the air line fitting collection I have. Once air fitting swapped to euro type it worked very well .

With today's modern cars the complex cooling systems have a tendency to suffer from air locks this tool makes filling your cooling system so easy. Watch the you tube you will never struggle again with your cooling system.

I had to buy a airline connector as the one supplied couldn't be identified as it isn't the usual uk spec.I tested it using a 5L screen wash bottle (full of air) which it evacuated surprisingly quickly, now I'm waiting for a new ERG so I can use it on an engine which isn't leaking coolant (or air).

This does exactly what they claim it does. It's a simple venturi tee with a gauge and shutoff/isolation valve. Worked great on a Mercedes/Chrysler Crossfire coolant tank. Comes with the hose for the vacuum refill after pulling the system down (they recommend 0.7 - 0.8 on the gauge). I needed around 90-100 psi from my air compressor to draw enough vacuum to get it to that point. I recommend connecting a flow regulator to the inlet on this tool so you can shut off the vacuum without disconnecting the air line.Still required conventional funnel bleeding to get the last couple of big air bubbles out which took maybe 5-10 minutes of idling. A great tool to have around even for other fluids. Thanks

Zum nachfüllen nicht geeignet. Soll nur bei einer Vollentleerung sinnvoll sein.Werde es bei nächsten mal nochmals probieren. Qualität sonst aber ok.

Product worked well but the air line fitting isn't correct so be prepared to swap it out and check that all the fittings are tight, I had some loose ones which is probably why some people say they don't hold pressure. Mine held fine

It is supposed to ship with a USA 1/4" air fitting installed, and a British air fitting as a spare. Instead, the one I received had the British fitting installed, and no 1/4" fitting in the case. Now, many of us have spare 1/4" air fittings sitting around, but they generally have pipe thread fittings, which are tapered - and this thing is machined with BSP, which are not tapered and require an o-ring to seal. You can put in a NPT threaded fitting, but it won't seal well; fortunately, the leak is minor especially in comparison with the application, which blows out a lot of air. This was obviously a mistake, as the adapter does not fit in the blow-moulded case with the British fitting installed.The outlet to the venturi oddly has a 1/4" air fitting machined on it! This makes for quite a mess if you accidentally hook your air line up to it, with coolant in the reservoir. Ask me how I know.That air fitting is not machined quite right, so if your air connector isn't pushed on right, no air flows. But if you do, watch out!You will want to put a section of vinyl tubing on that almost-air-fitting before you start, anyway. Later in the process, the exhaust will have in it a fine mist of coolant, which you'll want to run into a container.Besides those faults, the machining is good, and I got the tool to work, drawing a fine vacuum. It is a shame this one seems to be dysfunctional production. I might buy another because a fast vaccum apparatus might be useful to have around.

It worked for what I needed it for. I'd buy it again.