Yesterday, This hose ruptured. It is buried in the middle of the top end. I need to know what is the easiest way to remove and replace this hose. It is the one in the middle of the picture. If you look to the right, you can see the tear.

 

Here is another picture.

 

THis hose is notorious for failing suddenly. It has a slight flat S shape and leads off the back of the water pump, and lives in a very hot location.
It can be changed without moving anything, and just has a clip each end. It is advisable to replace it every two years.
It is part number 4 here:
https://parts.jaguarlandroverclassic.../brand/jaguar/
I believe that anyone who is going to keep their 6 cylinder car would do well to have a reinforced Kevlar one made for them by (eg) Viper Performance in the UK, so it can be forgotten once fitted.

 

As Greg has said, easy to replace, just a clip at each end and nothing needs to be removed. It's Section 26.30.73 in the Workshop Manual that you have. 35 bucks for a genuine Jaguar part or 20 bucks for an aftermarket copy. Order your choice from SNG Barratt, you'll have it in a few days.

Don't bother dropping the bottom pipe to drain the system (unless you want to change all the hoses anyway). Remove the plug on the top right of the rad, stick a thin tube to the bottom of the rad and syphon out the coolant. Wait 10 mins as some will drain back from the engine and syphon again. Throw the coolant away as it's a good opportunity to fill with fresh.

Cheers

Paul

 

Yep mine blew unexpectedly a couple years ago. Fairly "easy" to replace

 

I wouldn’t think this should be on a 2 year replacement cycle. It’s a hidden hose that most people don’t ever replace, so eventually the 20+ year old hose bursts.

Theres nothing unique about this hose that requires it to get replaced any more often than any other coolant hose, it simply gets missed because it is unseen and then bursts because it’s an old hose.

 

OK, 5 years is my best offer!

 

My car has all the emissions garbage on it. This is has not been an easy job. I must be missing something, because I still haven't gotten it off. I have hoses going everywhere, a smog pump, a bracket holding the smog pump that sits right in the way. The I had to cut about 3" of the front of the hose because that's how far up it goes on the pump just to get the front off. I have serval hoses underneath between me and the hose, so I can't really grab it' I see a lot of you guys are here in the States, you should have all this stuff on your cars also. It's like they put a quarter in a dime slot. I don't know how you guys with the 12 cylinder do it.

 

I’m on my 3rd ******* hose on my XJ40. The cheap ones will not get my recommendation ! The original lasted 20-22 years, the current is a reinforced type from SNG or Manners.
Don’t forget to clean the connectors for aluminum corrosion, otherwise it will not become 100% tight. I gave the connectors a thin layer of high temp silicone sealant while fixing the seeping caused by the corroded connectors

 

All you guys who don't have any emissions on your car should count your blessings! I was about to put a rag in the tank and light it. This is a picture of my easy job. I had to climb in the engine compartment and get a screw driver to break the hose free from the pipe. Now it's finally off, (I have a feeling that was the easy part) now I need to replace it. I just put a flexible "high pressured" hose on my truck. I might try that because I have too many small hoses around it for me to get my hands on it.

 

I didn’t claim it was easy. There is a reason it’s called the b@st@rd hose…
It’s in my opinion easier to get the new hose in than getting the old out. It does not stick and it’s more flexible

 

I sure hope I don't have to replace another one any time soon.

 

I live in a small town and I called around for the high temp silicone sealant and the only thing I could find was Permatec ultra copper sealant. Will that work? Otherwise I will have to order it online.

 

Even if you just clean up the pipe stubs properly and run a thin smear of WD40 or grease around them, it will help in sliding on the new pipe and the jubilee clamps will be fine in keeping everything watertight. The pipe isn't prone to leaking at its joints IME.

Paul

 

Ultracopper is very good and goes off quickly. Just a thin smear though, all round the ally spigot and on with the hose. Slide the clips on the hose first remember and check that they are the right way so you can do them up OK!

 

Had to Google that. It sounds like something that hardens up, Good to repair questionable exhaust joints. I think you will be better off without using anything.

 

I had to go to all three of our auto parts stores here and of course my only hope was to try to match one. The first place I went to only had no name generic hose, the second had a straight hose cut to length that was rated at "70" ?? I could of used it for a billy club, so I passed knowing it wouldn't bend at all. The third had "Gates" which is probably one of the better ones and even though the one I bought was longer, it had a slight "S" on it that matched perfectly and they cut it for me. So, I will try the some WD40 and give it a try.

 

It's all in the mindset. You know there are no speedy jobs so you go into each one knowing it'll take time and there's no point in dreaming otherwise . If you try to fight the car, it'll fight back!

If it'll make you feel any better consider what it's like changing a lower rad hose on an XJR/6...an experience I've gone thru and somehow lived to tell the tale !

https://www.jag-lovers.org/include/i...EEmZbGAskLL4ih

(There are about a dozen pics so keep going to the 'next page' arrow to see the grisly details!)

Cheers
DD

 

I never knew they made such creatures. I have always worked on my own cars and that's because it was not that big of a deal. I have done mostly maintenance and not engine rebuilds etc.. I enjoy driving them more, but I also like knowing what is beneath me... If I can really trust it. Right now, I'm in the process of restoring a "2000" Ducati motor cycle that I bought back in 2001 rode it to and from work in the city for 2 years then I parked it. Riding a bike in Arizona in 110 degrees wasn't really too fun. I would show up to work drenched in sweat, so I parked it for about 19 years. Now I'm retired and I live in a small town where there's mountains and no traffic. Everything I know about Jaguars I have learned from working on this car. Because a guy has stepped up and helped me out, and some of you guys, I haven't given up. I'm also realizing that this poor car needs my help. I took the alternator out to see if I could get to this hose and found out that the alternator was almost frozen up. So, now if like new again. I like doing things like that.

 

Every car has those little jobs which pass into folklore because of how fiddly they are. I have done the octopus hose to which Doug refers, twice on my AJ16 car, including cutting it in half to insert a coolant pre-heater to emulate the Canadian factory setup. Based on that experience, I then did it on a friends supercharged XJR. The slim fingers that I have definitely help at times like that..although the blood thinners that I take had an interesting effect on the myriad of cuts that I got on my hands!

I think it's these type of jobs that define us as practical enthusiasts. We all cut our teeth as 18-year olds on old cars that needed mending every weekend on a zero budget and that stands us in good stead now. And the memory of how we dealt with stripped threads and seized bolts provides us with the experience that makes things easier today. I still get flashbacks to when I was 24 and singlehandedly removed the auto gearbox from my Rover 3.5 from underneath by the roadside. I underestimated the weight of it, and as I slid it off the input shaft it rested on my chest slowly pressing the air out of my lungs. Unable to shout for help, only the frantic waving of my leg out from underneath the car raised the attention of a passerby who came to my rescue! A painful lesson learned!

You'll eventually look back on this job with pride and you'll know more about how the car is put together, And then when you try and refit the lambda sensors on the XJS by feel without putting the car up on car ramps, you'll think back and realise the coolant hose wasn't too bad after all!

Cheers

Paul