Jaguar 4.2 XK Engine Strip Down (Part 2) - Broken bits inside!
ฝัง
- เผยแพร่เมื่อ 23 ธ.ค. 2024
- This Jaguar 4.2 XK engine was in my daily driver but it failed. It was using coolant and putting pressure in the coolant system. What went wrong with it? Why are there broken bits inside it?
Buy Living with a Classic Merchandise: teespring.com/...
Follow the projects on Instagram: / living_with_a_classic
Support the channel: / livingwithaclassic
Become a channel member: / @livingwithaclassic
Business contact: livingwithaclassic@gmail.com
#Jaguar #XK #engine
My favorite type of work. I could disassemble Jaguar engines, clean, sort, and box parts all day. So much fun.
It's fun!
So interesting to see the innards!😊
Great to see this wonderful engine in it's exploded form!
Excellent job, Adam! A few worn/broken parts but definitely salvageable. Thanks for the cool videos on this teardown!
Glad you liked it!
Nice video, in my mind you can use this engine again if yourself polished the crank and measure later with plastic gauge if you are in the right clearance, there are three, you can taken of 0,05 to 0,07mm and use standard bearings later, the bores you have to honing, get some new piston rings and have a good engine.
Looks like it was certainly time for the bearings to be replaced on that XK engine, plus getting the crank ground to the first undersize. It is sad that Jaguar kept using 1930's rope style rear main sealing technology well into the 1970's and 1980's on the XK engine. Are you thinking of installing a new cylinder liner in the bad cylinder at some point?
I will keep the engine and probably rebuild it at some point. I don't have anything that needs an engine right now but you never know in the future.
I've rebuilt an Australian 3.3L engine, but its block looks like a child's toy compared to the XK.
Thanks for showing us the stripdown!
I’d tend to say that the engine could go back into a “show car” that isn’t seriously used with just a refresh like you say (apart from sorting the coolant / head gasket issue), whereas for a daily driver it is a typical tired old-school engine that needs a proper rebuild.
When you think of the torque those long conrods put through all the bearings it’s no wonder they wear out, they seem to be a consumable “service item” !
Great video Adam! Thanks for showing this very interesting strip down.
I'm glad you liked it!
Adam, the glass blocks window that you have right under the AC/heatpump unit is very inefficient. Replacing it with a normal double layer window could make significant energy saving, as well as making the place easier to heat.
It's an old stable that isn't well insulated. The glass blocks are far better than what was there before. I like them because they let in light but you can't really see through them. Don't want people to be able to walk behind my property and look into the workshop easily.
I noticed no music to the introduction . I enjoy the rockabilly music u had before . A big Elvis fan and others from that era . Today in Yuma , AZ it will be 75 degrees . No snow falling here LOL. We do have snow in Northern Arizona Flagstaff and close to the rim of the Grand Canyon . Stay warm and keep on doing what u do .
Yes technically this is a “daily driver” video but maybe destined for a different playlist ?
@johnmoruzzi7236 it technically is but the topic is really broad and more for disassembly videos I guess.
I would have the block professionally honed with a proper honing bar - from memory the best were diamond tipped. Done properly, oil consumption will be very low.
That crank ideally wants a 10 thou grind to make it perfect with no ovality. Those would make it a sweet engine.
Great video, I know that you have no intention of rebuilding that engine but it would make a great series.............!
I will be rebuilding my 3.8 at some point in the future. Hopefully pretty soon
Does the crank on the 4.2 have the little access screws to the oil-ways like the 3.8?
Hi Adam,
Great video. As you said earlier finding good replacement blocks is becoming difficult and the way forward in near future will be to repair. Fortunately there are ways to do this. I had a series 2.... 4.2ltr block professionally repaired using "top hat" liners. I got these after visiting a specialist Jaguar machine shop in the UK who designed the liners to deal with the dreaded cracked block problem so common to 4.2 ltr blocks afer overheating.
I think it would be a great project to investigate that block properly for micro cracks between the bores via a proper machine shop crack detection test.
Then at least you know for sure. Im reasonably convinced you will find these.
As an investigation this will show all of us the truth of the matter. If cracks are found one can then investigate the best way to repair/cost permanently. I have already learned that stiching is a waste of time in terms of lasting repair. I believe that top hat liners are the way to go. While the cost and effort of restoring this block and engine will be high I think the education assosiated with a succesful repair will be very useful to all of us as a future way forward as good blocks become scarce. For many this means retaining matching engine numbers which can be just as important. I think proving that a permanent repair is feasable is a very useful service. With a bit of thought it may be possible to get some sponsorship from a good machine shop to reduce costs given the pro coverage they will get. To my mind rescuing cracked blocks is going to become the only way forward soon so this project would prove invaluable.
Keep up the good work
This was a excellent way to see the engine taken apart by you and it speaks to the quality of the engine considering it's age it may have done many miles the MK 10 Jag I had ran so sweet I took it to 120,000 miles with no trouble it might be worth having the crank ground and you rebuild it as you said their getting scarce now if nothing else you have some good parts Andy Allen.
They are tough old engines.
They sure are Adam.@@LivingWithAClassic
You made that disassembly look easy. Very interesting video. Maybe one day a V12!! Hope so.
Maybe one day!
That was very interesting indeed. Definitely worth saving and rebuilding someday. You could always rebuild and sell for profit. Maybe with a Sport Camshaft from Mobeck. How many miles did that engine have on it? If you have the crank reground, be sure to have it re-hardened.
Jaguar numbers the cylinders backwards. The cylinder you keep referring to as cylinder 2 is actually cylinder 5. The cylinder nearest the firewall is 1 and the cylinder nearest the cooling fan is 6.
I mention that in both videos
If used pistons aren`t perfect, I use cerakote, ceramic coating. You can do it at home.
I was wondering what motoroil you recommend on these 4.2 xj cars ? These days
It will be traditional mineral 20W/50 with 3000 mile / 5000 km changes… still available if you look.
Yes regular 20w-50 mineral with zinc. I like Castrol Classic
Hi Adam . I wonder how many disassembled XK engines there are in the world that will never see the light of day again ! I expect many have stripped an engine and then realise the've bittten off far more than they can chew ......l know l'd be one of them ! 🤣🤣 Thanks Adam
I think you're right that there are a lot of them disassembled.
A surprising amount of percussion involved in the process. :-)*
Too late to learn the drums maybe?
I know what is wrong with this engine: There is a whole row of 6 cylinders missing! :)
Love it.
Exactly! That's why it failed
your interesting and know alot!c ouldnt u run a heater or something maybe wood burner so u dont have to work in coat? -0not sure where your at but i love your vids !
I do have a heat but I am old blooded. It's not a coat but a just a fleece.
Your dead-blow hammer has seen better days!
We've been through a lot together. Some say we go way back haha
In all honesty, I do need a new one.
👍🇦🇺
like 166 !
Please stop using a pry bar and levering against alloy components.
Adam admitted to being gentle…. So all good.
I was being very gentle. Not a mark on anything