Lol, minute 8:52 “about halfway through fitting the lower radiator hose you’ll get a cramp and totally regret replacing the hoses on your XJS.” Truth. I have been fighting the lower rad hose for 2 hours and am nearly out of French.

I have to say that I wouldn’t have dared tackling this job without your videos so thank you. The hardest part so far has been fitting the new lower radiator hose which I managed to just push on from underneath but clearance is so so tight and it’s quite the challenge!

Just about had a heart attack when you showed the table with all the hoses-fortunately you mentioned it was the new AND the old! Like the vaseline idea too, thanks for the video.

@LivingWithAClassic

3 жыл бұрын

Haha yes if it were that many hoses it would be really bad. Thanks for watching!

I have bought my first V12 Jaguar. It’s a pre HE 1977 XJ-S. I’m not in a hurry to get it back on the road. I will pick away at it over a number of years and I’m looking forward to it. your videos are going to be a tremendous resource. Thanks for taking the time to develop this series for our benefit.

Just a small suggestion, when your slacking off the jubilee clips, especially the ones on the bottom hose, use a long flexible shaft to mount the socket; it was the only way I could get at mine. I did wonder if you would use Vaseline, washing up liquid works just as well (but not to much!). I also found that taking the bleed screw out of the top of the rad saved much faffing around even on my HE. Glad to see that you're having fun weather-wise as well; pretty grim here on the Wirral as well. It should clear up for you sometime next week...

@LivingWithAClassic

3 жыл бұрын

Some of the clips that may have been on there since they built the car can be a pain I get off. The weather has really turned to fall right away here. I hope we’ll get some better weather again soon

Hey Adam, i was just rewatching this after a couple of years as I need to do this job myself. These are fabulous reference videos. Thank you!

Thank you for another useful video! I am not sure if it was in the workshop manual or on jag lovers but I found one more tip. It said to lift the front of the vehicle prior to pouring coolant in order to facilitate air bubbles moving forward.

@LivingWithAClassic

3 жыл бұрын

That is a great tip but I’ve mostly found it necessary on the pre-HE. The HE is a lot better at getting any air out by itself. Thanks for watching 🙂

Great video--very detailed and comprehensive!

The Vaseline in the hose is such a good tip Adam wish I knew that when I did mine 🥵but very good to know for future reference 👍🏻

@LivingWithAClassic

3 жыл бұрын

It does help a lot!

@omarks

2 жыл бұрын

@@LivingWithAClassic I use red rubber grease, kind on the hoses mainly used on brakes

Great video - now I know how to add coolant!

Thanks Adam, Nice clear video, like the Vaseline tip ! Great idea, ! Stay safe, and keep motoring !

@LivingWithAClassic

3 жыл бұрын

Thanks Stuart, you too!

Just discovered you're channel and I'm liking what I'm seeing. Great collection of Jags. Looking forward to more videos.

@LivingWithAClassic

3 жыл бұрын

Thanks Steve! I’m glad you’re enjoying the videos

I used silicone paste/grease when I did mine. Another great video Adam 👍

@LivingWithAClassic

3 жыл бұрын

That works very well too! Just something to help is slide one

It is also good idea to change the banjo bolt on the radiator, as original has very bad holes placement, which are almost blocked when the bolt is in place. I know that Jonas provides upgraded ones

@LivingWithAClassic

3 жыл бұрын

Jonas has a lot of great stuff!

Nice job. I can't believe the manual suggests using Barsleak! Terrible stuff, avoid it like the plague.

@LivingWithAClassic

3 жыл бұрын

It is terrible stuff! It’s been the cause of many ruined engines. Thanks for watching

You absolutely MUST use "jiggle pin" thermostats in a Jaguar V12!!

I think the yellow plastic fan should be replaced, they are prone to cracking. Sil-glyde is better than Vaseline for rubber.

Adam Thank You!

@LivingWithAClassic

11 ай бұрын

You’re welcome

Thanks Adam for this great video. I've ordered my coolant hose kit ! I did not yet replace the expansion tank, but it's rusty inside indeed. Any tips / hints of how to get rid of the inside rust, a part from replacing it?

Adam this is one of your best informative video on V12 cooling system. Something to check with a light before buying any Jag. V12. What supplier has a complete kit like yours that is available ? It would be best a V12 owner has a spare set. Like I said what supplier has a complete kit ? Thanks.

You have the wrong cap for the cross over pipe. It should be a flat cap (same as early XJ6) and not a pressure cap. Please dont use Vaseline as this is a petroleum based lubricant and not meant for water hoses. Use rubber grease or silicon spray, please. If this was my car, I would have replaced both thermostats at the same time. If you want a better alternative to coolant additives, use Evans Waterless Coolant. A vastly superior alternative. Nice video Adam. keep them coming.

@paulkirkland1535

3 жыл бұрын

My thoughts exactly. The thermostats should be replaced as well when doing a flush. Also it can be difficult to completely bleed or burp the V12 cooling system. When I'm doing one, it's better to do it 2 to 3 times just to make sure to get all the air out. Definitely DO NOT UNDER ANY CIRCUMSTANCES use any type of radiator or block sealer in the cooling system. I don't know why the owners manual gives someone that instruction. The bloke who wrote the manual needs a spanking. A gr8 God bless day to you and good job Adam.

@lebojay

2 жыл бұрын

Jaguar changed to a pressure cap somewhere along the way when they realized it made no difference. The design of the pipe seals the cap anyway, so even a pressure cap functions like a flat cap. But changing to a pressure cap had the advantage of eliminating the risk that someone would mix up the caps and put the flat cap on the expansion tank. I got this from Kirby’s XJS book.

@LivingWithAClassic

2 жыл бұрын

Yes you’re right! They did switch in the late 80’s to that.

@lebojay

2 жыл бұрын

@@LivingWithAClassic thanks for the love! Just bought an XJS last week and am going to tackle its cooling system (with your help)!

@LivingWithAClassic

2 жыл бұрын

Good luck with your XJS! Feel free to send me an email if you need anything. My email is in the description of every video

Adam , great info , owner of xjs v12 90 conv. and learning alot about my car ,thanks for all .how about changing thermostats ? victor

Thank you so much for the helpful demo of changing the coolant hoses as well as filling up the new coolant. I have a question, after you filled up the crossover to the top, you said next to fill up the expansion tank. When I did the same thing on my 1988 XJS V12，the coolant over flooded from the expansion tank when the coolant was filled up to top through crossover, I think simply the opening on crossover is higher than the opening on the expansion tank. Do you know what I did wrong? or something is wrong in the coolant system? I changed all the long coolant pipes but not those short ones, should I replace them too? Please advise, thank you!

hi another great vid. i am struggling to find the right coolant for my 1976 5.3 series 2, so many differing views on forums with no definitive answers. the sulphate free for aluminium engines seem to be oat. will that be ok or can you recommend any particular brand and type thanks

When i check the waterlevel should i open both caps or just the Crossover?

Very helpful, I shall use this video when I do mine👍 Thanks. Bytheway, why the aftermarket air filters?

@LivingWithAClassic

3 жыл бұрын

They add a very nice induction sound to the engine

The intake modification bolted on to the throttle body, Whats its name and where do I purchase it? I have a 1992 jaguar xjs 5.3 litre engine and would very much prefer this over the old intake set up...thanks

You forget the expansion tank hoses.

Another good one Adam. Interesting you used Vaseline to lubricate the hoses. I tend to use proprietary rubber grease - any thoughts on that?

@LivingWithAClassic

3 жыл бұрын

I have just used it for years and it’s worked. I’ll have to try rubber grease sometime

Is there normaly any coolant in the expansion tank in the fender, that should be drained?

@LivingWithAClassic

3 жыл бұрын

There is usually a very small amount. I forgot to mention in the video but mine was empty

Hello Adam, from Vienna. I have a 6.0 xjrs facelift, and want to Do the same Procedure like you. Now my question, i see in your Video, that you use 2 caps with springs, for the cooling System, but i think, that the cap on the engine bay should be one, without a spring...the cap on the expansion tank has a cap with spring... What is your opinion... Thanks mike

@LivingWithAClassic

Жыл бұрын

Originally it was like you say however many have changed to how it is on this car. In the middle you can use one with or without a spring.

What's the trick to getting the coolant bypass pipe back on, it doesn't really line up with the hoses

@LivingWithAClassic

Жыл бұрын

Have your removed the PCV from the cylinder head? That makes it easier

@V12motorsports

Жыл бұрын

@Living With A Classic I have not. It's just the 2 bolts holding it in is the a gasket behind it

I would buy new radiator caps too when l purchase a jag & do this procedure... flush... new thermos... waterless coolant..... go whole hog & recore radiator if l don't know cars history or get radiator thoroughly tested.... keep the best of old hoses as spares if touring.....

Wow that insides a little crusty

@LivingWithAClassic

3 жыл бұрын

It’s just the top inch or so, pretty common

@TFD1982

3 жыл бұрын

Living With A Classic ahh ok it was also making me think there was rust in the system since I saw rust residue on the radiator but that good

That air filter thing , jou are beter without it becous. it wil kil the engine in the long run scotty advies