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One more question does the cooling system have to be 100% empty of Coolant? my radiator is at half and some coolant left in some of the pipes
You can try to pull the full vacuum and see if you can get the gauge in the green (or red on your tool) before the tool sucks in coolant. If not, then you should drain the radiator the rest of the way before trying again.
Last edited by lotusespritse; Jun 18, 2024 at 10:54 AM.
You made a good example why I work on my car instead of taking it to a shop or even the dealer
Reason 1 is I don't trust anyone to work on my car
lotusespritse took his car to get warranty work done they told him they did a bunch of work including the sparkplugs in 1 hr when in fact they probably did nothing or very little this is what can and will happen sooner or later when you take your car to someone else to do your work
Reason 2 to save money as soon as you tell the machinic its a Jaguar instead of a Toyota they see money signs everywhere
Reason 3 you learn something in the process and feel better afterwards instead of just throwing your money at it
Reason 4 I am not working right now so I have a lot of time on my hands
Reason 5 pulling the supercharger or filling the cooling system is not like rebuilding an engine I feel confident enough to do it myself if it was engine rebuilding I would not waste 1 minute of my time
The only thing I will add is, since you have so much time available, spend more of that time researching and watching YouTube videos before asking questions. It’s just incredible how much information is available to the DIYer these days. I am old enough to have DIY’d when you only had a crappy Chilton’s manual that barely matched your car and your limited circle of friends and family to get information. Don’t sleep on YT videos.
There is no question that this is the way to go IF you have a large enough source of compressed air to pull the vacuum. For those of us who have less than a 10-12CFM at 110psi source of air it is a none starter.
There is no question that this is the way to go IF you have a large enough source of compressed air to pull the vacuum. For those of us who have less than a 10-12CFM at 110psi source of air it is a none starter.
You can probably still get there with iterations. Since your coolant system is supposed to hold the vacuum, you can pull as much vacuum as possible and then wait for the pressure to build back up in your tank to hit it again. You don't need more than 110psi to pull a full vacuum with these tools.
I have a compressor and the pump ,I don't even bother with it anymore ,I use the old jugg and bleeder screw works every time ,easy and simple ,now for the guys using the pump power to you, I'm not nocking that method it works everytime ,just my own opinion the jugg and bleeder works for me everytime no flame or disrespect for those who use the pump.if you can't get the air out with the jugg and bleeder you have a some kind of issue going on with your cooling system
Last edited by dennis black; Jun 19, 2024 at 02:57 PM.
I have a compressor and the pump ,I don't even bother with it anymore ,I use the old jugg and bleeder screw works every time ,easy and simple ,now for the guys using the pump power to you, I'm not nocking that method it works everytime ,just my own opinion the jugg and bleeder works for me everytime no flame or disrespect for those who use the pump.if you can't get the air out with the jugg and bleeder you have a some kind of issue going on with your cooling system
I am vacuum filling my system because I replaced a lot of things (water pump, o rings, thermostat , rear pipe and more) vacuuming the system is a good way to tell if its leaking before adding coolant
If there is a leak I will add distilled water to check where the leak is instead of my $20.00 coolant
Go for it, I replaced my cooling system with all metal pipes front pipes rear heater pipe thermostat and water pump, oil cooler and gasket supercharger Coupler to solid then burped it with the screw and jug ,then pressure checked it with my hand pump ,and all is good ,drove 2000 miles with no issues, good luck
isn't this kit only for cars with a radiator cap and no overflow/coolant tank ?
This is the same style of kit that I referred to in post #10, just a different supplier. I use it on my Corvette, and attach it to the coolant expansion tank.
We use this on F- types Xjs, xf , works every time, first fill half way run the car until the thermostat opens turn the heater on full blast and wait till the bubbles disappear rev the engine to 2000 rpm , very easy
I checked my 2019 V8, and it does have a separate bleed circuit from the top of the front crossover pipe back to the expansion tank, so it doesn't need the bleeding of our 2014 RRS. Make sure your car has the bleed circuit to know if you need to bleed it, if you didn't use a vacuum bleeder.
Need to correct my statement above. I did find a coolant bleed screw in my 2019 XJL 5.0L. So you do need to bleed the coolant system using this screw, if you don't use a vacuum filler. I always use a vacuum filler, so no air came out when I doublechecked this bleed screw.
Location of coolant bleed screw on the right side of the engine for a 2019 XJL 5.0L
Great picture of the location of the bleed screw. Since it's black plastic it's easy to overlook.
I am a HUGE fan of my vacuum filler! Until I used one I just had no idea how well they work. Wish I had purchased one years ago too.
If you want to replace another bit of failure prone plastic there are metal versions available for not much money.
Even Jaguar (Well it's a LR part number) has FINALLY seen the light and has released a metal version. There are some different threads out there but it's a real common part that fits a lot of BMW's too. Dozens on Ebay and other places so easy to find.
I recently replaced mine. I was not too worried about it but did find several guys that have had that part blow out and fail. I figured it was cheap and real easy to swap out so I did.
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Great picture of the location of the bleed screw. Since it's black plastic it's easy to overlook.
I am a HUGE fan of my vacuum filler! Until I used one I just had no idea how well they work. Wish I had purchased one years ago too.
If you want to replace another bit of failure prone plastic there are metal versions available for not much money.
Even Jaguar (Well it's a LR part number) has FINALLY seen the light and has released a metal version. There are some different threads out there but it's a real common part that fits a lot of BMW's too. Dozens on Ebay and other places so easy to find.
I recently replaced mine. I was not too worried about it but did find several guys that have had that part blow out and fail. I figured it was cheap and real easy to swap out so I did.
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Thanks for posting that new plug. I am going to get one. Although, I switch all my cars to waterless coolant, so there is almost zero pressure in the cooling system, which means no pressure to blow anything out, including the water pump seals. My 2019 XJL has waterless coolant, and it's running great.
