2011 XK NA Waterpump question
#2
If you're replacing the pump, you should be replacing the pipe too, it's a known wear item and costs around $10...
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#4
Its held in place by the tension on the rubber O ring. Just give it a good tug and like Jau said....replace it while you are in there. Make sure to note the position of the pipe before removing. There is a small 'wing' that points to the 7 O'clock position (approximate).
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QUESTION...If I am not replacing the water pump, is it still absolutely necessary to have the cooling system vacuum filled? After asking my Indy who will be replacing all the cooling lines and pipes, he told me he doesn't vacuum fill the cooling system. Should I be concerned if I am not installing a new water pump or is vacuum filling more of a safety measure? Can all the air be removed from our cooling system safely without the use of a vacuum fill set up? Thanks all.
Last edited by bocatrip; 07-20-2022 at 09:29 AM.
#11
I am planning on currently having all of my plastic cooling lines and pipes replaced. My water pump was replaced by Jaguar recently with the most updated pump and I will not be replacing the newer water pump.
QUESTION...If I am not replacing the water pump, is it still absolutely necessary to have the cooling system vacuum filled? After asking my Indy who will be replacing all the cooling lines and pipes, he told me he doesn't vacuum fill the cooling system. Should I be concerned if I am not installing a new water pump or is vacuum filling more of a safety measure? Can all the air be removed from our cooling system safely without the use of a vacuum fill set up? Thanks all.
QUESTION...If I am not replacing the water pump, is it still absolutely necessary to have the cooling system vacuum filled? After asking my Indy who will be replacing all the cooling lines and pipes, he told me he doesn't vacuum fill the cooling system. Should I be concerned if I am not installing a new water pump or is vacuum filling more of a safety measure? Can all the air be removed from our cooling system safely without the use of a vacuum fill set up? Thanks all.
#12
#13
I filled without a vacuum through the top of the S/C. It was very tedious, requiring me to stop the engine frequently to let it 'burp'. That being said, I was able to get the proper volume into the system and have never had to top off. That was 5000 miles ago.
Probably not feasible if you have a NA car.
Probably not feasible if you have a NA car.
Last edited by 007XKR; 07-21-2022 at 11:43 AM. Reason: Original qeustion referred to NA cars.
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Last edited by bocatrip; 07-21-2022 at 03:52 PM.
#16
I can only speak with experience. I’ve replaced many cooling parts myself and on the 5 litre burping did not work, there’s just too many hoses, pipes, channels and pockets for air to get trapped. As I said using a vacuum, I managed another gallon of coolant and removed a LOT of air. On the 4.2 SC there was no need for vacuum, there’s a large plug on top of one of the manifolds and burping got all of the air out.
Perhaps he has another technique and may be he’s good at what he does. He’ll find out soon enough once the engine’s running after fill. If the reservoir’s full it overheats then there’s air somewhere and the coolant’s not circulating.
Perhaps he has another technique and may be he’s good at what he does. He’ll find out soon enough once the engine’s running after fill. If the reservoir’s full it overheats then there’s air somewhere and the coolant’s not circulating.
#17
I've never needed to do a vacuum fill on my 5.0 N/A, you just open the bleed screws and squeeze the upper hose for a few minutes.
I've done this multiple times while changing coolant pipes.
You run the engine with the resevoir open to keep adding coolant as you burp it by pushing on the upper hose
and then pushing on the drivers side hose by the thermostat, make sure your bleed screw is open though.
the coolant level will keep going down and you add coolant until no more air is coming out.
i'd repeat this after a highway drive to ensure all air is out.
I've done this multiple times while changing coolant pipes.
You run the engine with the resevoir open to keep adding coolant as you burp it by pushing on the upper hose
and then pushing on the drivers side hose by the thermostat, make sure your bleed screw is open though.
the coolant level will keep going down and you add coolant until no more air is coming out.
i'd repeat this after a highway drive to ensure all air is out.
Last edited by trkyam; 07-21-2022 at 04:31 PM.
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steve_k_xk (07-23-2022)
#19
So Jahammer. You’ve only worked on the 5.0 with the supercharger with the vacuum fill and not the NA 5.0 2010 which I’m referring to? Possibly that might be the difference in bleeding the system? Perhaps the NA 5.0 doesn’t require the vacuum method??