💁 Incredible Unknown Facts About The Jaguar XK Engine | Ultimate Guide 👀
Вставка
- Опубліковано 20 лют 2023
- We've been looking after these good-ol' Jaguar XK engines since the 1960s, when our small company was born in Nottingham, UK 🇬🇧 Our engines are built in 3 main specs, starting with a standard rebuild and moving up to fast-road, ultimately turning into a race spec engine delivering thrills for the circuit.
0:00 Workshop tour
We are currently rebuilding Vic's 340 engine, soon to be featured in a new episode, until then, please give Vic a shout : / @vicsprojects
To book your classic Jaguar (engine) in for a post winter servicing or attention, please contact us with confidence!
#jaguar #alfaromeo #lancia #restomod #classiccars #drivetastefully #engine
--------------------------------------------------------------------------------------------------------------------------
Check out our full video archive: www.youtube.com/@pkthorntonre...
Please don't forget to subscribe to our UA-cam Channel: www.youtube.com/@pkthorntonre...
Visit our websites for more of what we do at :
🐆 www.thorntonrestorations.com/
🍀 www.alficina.com/
The specialists in classic Jaguar & Alfa Romeo! We offer bespoke restomod exterior and interior design, concours winning restorations, coachwork, engine building, carburettors tuning, servicing and upgrading on the complete classic Jaguar range from XK120, XK140, XK150, E-Type, Mk 1, Mk 2, S-Type, E-Type 6 or 12 cylinders.
Our aim is to provide bespoke services that offer satisfaction to the eye, whilst still maintaining the original style and functionality associated with a both classic Jaguar & Alfa Romeo models of the 1950s to the 1970s.
Follow us here:
LIKE us on Facebook:
/ pkthorntonjaguar
/ alficinaofficial
FOLLOW us on Instagram:
/ pkthorntonrestorations
/ alficinaofficial - Авто та транспорт
You must have needed a strong drink after your customer tried to bend the tach needle on the newly rebuilt engine... Subscribed
Not for the faint hearted! It was all good in the end and the engine is still going strong! 💪 Thank you!
Some context as to how the different displacement versions of the XK engine felt to the driver in operation would be helpful. As a lifetime owner of XK’s I can share that the smaller displacement versions would rev higher, and felt more sporting, despite making less power and torque. The 3.4 liter version was the Le Mans winner. The 3.8 revved up noticeably quicker than the 4.2, and was best matched with the manual transmission. The 4.2 produced more torque and thus was the best motor to have behind an automatic transmission. The Jaguar built 4 speed full syncro gearbox available beginning in 1965 was much better driving in traffic than the hoary old Moss box introduced in 1949. The Moss box began life designed for a lorry, and was the only gearbox commercially available that could handle the prodigious torque of the 3.4 XK engine in 1949. The later GM sourced auto boxes were far better than the earlier Borg Warner units. The clutch was also improved substantially for the 1965 model year. Not mentioned is that the XK engine owes much of its longevity to the robust 7 main bearing bottom end and race car like huge oil sump capacity. The long stroke design makes more torque at lower revolutions, thus promoting engine life in normal road driving. In the 1970’s the factory production boring machinery was wearing out. This coupled with labor problems meant that tolerances and quality fell considerably for customer cars. Ford ownership has been criticized, but Ford invested heavily in modernizing Jaguar and can be credited with saving the company at a huge cost.
Very well pointed out, thank you!
Yes and yes to all of your reply. The only thing I made a comment about was the oil pan on the engine was the newer type. The D-type version had a try sump that feed oil by a separate tank. And the XK 6 is a long bore engine, and therefore never going to rev high. Its all about torque and gears.
@@classehermansson5849Except the 2.8 litre Version needs to reved up!
Nobody mentions that the XK engine is a hemi! I am even older than the XK engine and I only recently learned that it has so-called hemispherical combustion chambers!
These engines are mechanical pieces of art.
Well said, indeed!
Great workmanship, those engine rebuilds are very impressive, Love all things jaguar.
Thank you very much!
Thank you. Very good job
Thank you too!
I had several XJS in the 1980 which also had the V12 engine! Beautifully smooth and powerful and did about 15MPG - but worth every gallon!!
I know the feeling, great long distance driving engine the V12 is!
Why does it not ever get mentioned that it is a true. HEMI engine. !!!!!
They use the same construction of oil pan that the "new" 3.4 XJ6 engine Jaguar used from 1975 and forward, and of course the 4.2. Not slushing around oil, so the oilpump always got some oil to pic up.
I have got a 3.4 from 1975 to my special build and some of the things that the engine builder proposes to his customers is for me a little bit "overselling parts"....but thats just the new world.
That will be the XK Scorpion-Injection Model.
Literally! The cylinder head for our race car comes from the Scorpion tanks 🦂
Every Abarth has a scorpion in it...at least, in spirit.
Enjoyed the History here.. Have you fitted the new 123 Bluetooth distributors to any of the XK engines? JMD
Yes that’s what we use and they work a treat! ✔️
@@pkthorntonrestorations Maybe you could do a video on the 123 distributor being fitted and setup in the future. I know alot of the MK2 Jaguar crowd are looking for this.. JMD
@@453vae great idea and why not! Will get it done
so you set the valve gaps with the head off... do you occasionnally find any change in the clearance after the head is torqued down onto the block ?
It makes no difference, in our opinion. We always do them on the bench, recheck once in car, while the engine is cold. Hope that helps!
A Master class for Mk X owners
Thank you so much! 🙏
Hi guys, love your work. I have a 12/84 built xj6 with 4.2 xk engine. I’ve been told because my motor is Jaguar Plc engine (as opposed to Leyland ownership) the engine is much better as things reverted back to Jaguars original specs/materials used for either the heads or the blocks. I’m vague on the details but wondering if you know? Would much appreciate any info about the difference. Cheers Andrew
Hi Andrew, as far as we know the engines would be the same, the technology has moved on since the early days. You will probably have a big valve head which produces a heck more power than the early engines!
Hello. What solution would you suggest for a car that has all matching numbers except the head. Is there a 'M' version or something that I could substitute in absence of the original head which may have been removed because it was warped or failed. Any ideas would be amazing?
There’s not much you can do without the original head. Just enjoy the car! Drive it, break it, repair it, enjoy the memories
too bad your shop is not over here in california, because i'm in desperate need of a rebuild (the block is cracked) on my 3.4l xk engine in my mkii. surprisingly, it managed to make it from here in california to ohio (3000 miles), including over a 12,000 foot pass in colorado, with the cracked block and a leadking head gasket.
They are incredible resilient engines! A well built XK engine can last over 3 decades without any major surgery. We would be happy to help, now we have a weak British pound against the US dollar 💵
@@pkthorntonrestorations do you have a website and/or an email that i can use to contact you.?
@@hueyhoolihan582 yes certainly, reach out to us at info@thorntonrestorations.com 👍
He is glad he is not in Ca.
Ca has become a 3rd World craphole under leftist rule.
haha - Scorpion!!
Yup true story 🦂🇻🇪
What oil would you use ? I know what the book says but oil sae has changed over time
Millers 20w50 👍
Jct or gct?
My father Dennis Pritchard had a beautiful oplescent blue 1968 E-Type 1.5 series coupe 4.2cc. I can't remember the colour of the head. Would it have been gold? Thanks for the video, subscribed!
It would have been gold indeed! Fabulous motor cars! Thank you!
4.2cc's??? Was it a toy?
@@Philcopson 4200cc or 4.2l, either or!
@@pkthorntonrestorations Thanks, but I was only pulling Roger's leg. I was actually looking on line to see if anyone had ever posted any info, film clips etc on the 2.4 litre alloy block and 3-litre XK racing engines. Cheers, Phil
Opalescent Blue is stunning!
Enjoy
You pull these engines up to power and then come off the throttle and let the gearbox turn it.They snap and snarl through the three SU carbs.Glorious.Banger racers loved them sadly.
Tremendous engine! So rewarding to build and enjoy ☝️
Lyons must have been off his meds when he came up with the 2.4 Litre, madness! reducing the capacity of this engine and turning it into a boat anchor. It could never have been a money maker and from a manufacturing costing point of view would have been his number one loser.
Maybe an Italian style tax saving strategic move? If cars were taxed based on cc, the 2.4l would have been in the under 2.5l class. Money in the bank! 🏦
@@pkthorntonrestorations Yes, the old point 4, D squared N formula was stupid, why did they tax engines on bore diameter and number of cylinders?
Nice video, but I didn't see anything that was an "incredible unknown fact". 🤷♂
Thank you, it’s all in there! 👍
where are the incredible unknown facts ?
It depends who’s watching 👀 for some viewers these are incredible unknowns facts 👍