The New Engine in my Jaguar XJ6 is Running TOO HOT Even in the Middle of Winter!
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- Опубліковано 25 сер 2024
- The new engine in my Jaguar XJ6 is running too hot even in the middle of winter. I am seeing over 100 degrees Celsius and it's worrying. Hopefully it is just a stuck thermostat and nothing serious.
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That’s a good result…. You’ve proved that it was genuinely running hot and not cooling properly… nice to know that the oil pressure has improved too as a result.
That Jaguar sounds purrrfect just purring away there lol
It sure does!
you have a great channel! i own a xj6s3 83 for over 15years now and recently i drove the car out of storage where i kept it hidden from daylight for over10 years. now is the time we can still enjoy our cars can. withing a couple of years people will blame us for our greenhouse contribution. could do a movie on all the lube points on the car, i heard some are pretty hidden. thanks and keep up the good job! i have learned a lot already.
Glad you got it fixed!
Have some gasket paper too but I once made off from a cornflake packet put clear locker on it worked a treat
A great result just done my thermostate on my l322 td6 nice and warm again now all the best donny
My V12 XJ-S runs too cold in the winter. I think maybe the thermostats are no longer blocking flow to the radiator as they should when closed.
Thanks for posting these vids. You give me lots of encouragement to use an ‘87 XJ-S as my main car. 😀
You use a gasket AND Hylomar blue? Most of what I’ve read on the Jag forums says that with Hylomar you don’t need a gasket.
If you car runs too cold, it is more than likely the thermostat staying open.
Great video. I admire your drive and determination when working on your car. Keep up the good work !
Thank you!
hey leno uses evans in everything he owns, it massively important on the v12s as they have problems with cylinder heads getting eaten by tired antifreeze, with the amount of coolant in a v12 its not cheap but for engine longevity its probably the best in vestment you can make i bit the bullet a few years ago and havent had any coolant problems since, went to electric fans also as i have a deep mistrust of viscous fans from bad experiences
Hi Adam and glad that it was a minor and quick fix.Keep safe.
Glad to see you have resolved the issue, engine bay is looking good too. I was initially impressed by Evan's claims but not now. Hope it works for you in the long term.
Hi Adam . First thought was oh no ! not another set back ! But thankfully it was a simple fix. ......and breath out ! Thanks Adam. Yep, it's been very dull and dry over here in S.W . England for weeks .
I thought so too at first. Been on a longer drive today and she’s running great
Nice and simple. Always good when that ha[[ens.
It was simple for once which was nice 😊
88 degrees C. is right around 190 F. I'd put an 82 degree C. stat in it myself. Cool video, kind of figured it was a thermostat issue when you described the symptoms. Good job making up a new gasket!
Thanks, Adam!
I’ll see how it does in summer but for winter and fall an 88 degree one is nice. The heater is good and toasty
nice one !
Engine sounds really good for any age !
Thank you!
Pleased to see not only that it's now working correctly, but that I'm not alone in occasionally making a minor goof!
I try to always show the good and the bad. We all make mistakes sometimes and it’s part of working on these old cars.
@@LivingWithAClassic this is a part of why I like watching your channel.
I love jags and have one myself but overheating problems are part of ownership mate
Great video! I will be converting my XJ40 to electric fans this spring and I couldn't really find what temperature setpoints that I should use. Now I know that I'll aim at 88 degrees and adjust from there. Also, I am seriously jealous of Sweden's weather. In Canada, it is -24 celcius tonight.
Why not test the thermostats in boiling a pot of water with thermometer?
I had Evans in my Triumph Stag and it ran a little warmer but I never had any issues and, of course, it doesn’t boil until about 180c so there wasn’t a problem, even though here in Spain, I’ve drove it in temps of 45c. I now have it in my Bertone X19 (mid engined) and it’s absolutely fine.
Incidentally last week I changed all the flexible pipes on the X19 between clutch and brake reservoirs and respective master cylinders (and changed them too as the car is 33 years old). I have also change the whole 2 systems to DOT5 silicone fluid. How about trying that on your new project as you are upgrading the brakes?
Nice t-shoot & fix. Wondering about the placement of the t-stat, must be very easy to get wrong, maybe there's some kind of trick to getting it positioned right the first time? Seems like a dab of sealant or something to hold it in place during assy might work?
Great video as usual! I will follow the exact process to check my thermosta next time. BTW Adam, have you ever checked the temperature at the two exhaust headers? There is always a 100 degrees difference in my 71 xj6. Say 370 vs 270 Celsius degrees front and back.
Where is your snow Adam, I don't see any.
I’m wondering that too! It’s been very mild but horrible weather. Icy cold rain and high winds tonight
WAR YOU GAT PARTS FOR A 1992 XJ6 MAJESTIC JAGUAR .MY FULPAM JORNAS . .
I'm driving an X-type, nevertheless she has got the same issue.
Adam you must use 2 head gasket for your engine.
Why? Nothing wrong with the engine. Just a bad thermostat
Composite gasket with Wellseal is bullitproof
Notorious BRG strikes again!
Sure does! And that is her name now 😊
@@LivingWithAClassic For short NBRG could be Biggie Smalls or Ruthie if you get the references!
Hey Adam. Nice vid, thanks. Now, whatever happened to your winter beater, the Swedish Saab ? PS You're a very good gasket maker !
Thank you! I’ve made a few over the years when I forget to order something.
The SAAB is still here. I was suppose to go back to office a few weeks but with the way things are I’m still working from home and I hardly drive. I drive maybe once a week and I’ve taken the XJ6 or XJ40 then. Also it’s been very mild here so no salt on any roads so far
Have you tried testing the old thermostat in a saucepan of hot water?
I didn’t do it since it felt pretty stuck. I could really move it with my fingers
Murphy's law Adam
Seems to always be the case
Get a cooler thermostat the temp will be stamped on thermostat
Did you watch the video? It’s all explained in it
in the owner s manual the say to put water in coolant in this engine, can you use 100% normal water and be fine?
No you need a 50/50 coolant mix or to run something like Evans that I am
never run straight water, the dissimilar metals need the protective additives in antifreeze or horrible things will happen to your mating surfaces, antifreeze does a good job but degrades surprisingly fast so needs changing every 3 years regardless of mileage, it a electrolytic degradation evans is bloody expensive but really much much better than any antifreeze and is a one time thing also always use distilled water when mixing antifreeze as the crap that comes out of most taps should never be put in an engine , if in doubt look at the inside of a 10 year old hot water tank !!
I once had a 2000 Toyota Celica and the previous owner topped the coolant with water only. Guess what happened at -30 celcius one day? Serious problems! In theory, using only water would be the most efficient way to transfer heat, but prestone does have additives to 1.ensure that it doesn't turn to ice and 2.ensure the engine and radiator will not rust too much.
try running without a thermostat first
Never do that! They won’t run at the right temperature and the coolant will just circulate through the engine and not go into the radiator
@@LivingWithAClassic Just as test to make sure there is no blockage. LOL nobody should ever run an engine without a thermostat unless you want to ruin your engine.
@@LivingWithAClassic I was wondering if you had some sort of build up of sediment within the coolant passages... and by running the engine without a thermostat for a few minutes would allow some sediment or rust to be flushed out. I probably should have explained my thinking first. Enjoy your channel. I am In the process of supercharging a Jag 4.2 xk inline six engine with an Eaton M90 and using the triple SU as throttle bodies for a very custom project.