Hello

I have question regarding engine swap on XK8 and i would be grateful to all who have some useful information.
I have a chance to buy XK8 from 1999 with faulty engine, engine is not working but car is in good shape, it's 4.0l V8, i'm really interested in this car and i would like to be owner. What i could find online was that these V8 had problem with nikasil coating on cylinders.

My question is : Is it possible to make engine swap from Jaguar S-Type with 4,2l V8 engine from 2002. How much problem is it? Is it only plug and play or there is many more thing to do, engine mounts, wire harness and other? I can get a hold of this engine and everything from s-type.

If someone had this or similar question please give me link and if not please give me your feedback. Also if you have some service manuals and literature.

Thank you in advance.

 

You can use parts of the 4.2 but will have to swap the electeonics and other things over from the 4.0.

The problems with Nikasil had to do with high sulphur fuel and they have long since failed. If a Nikasil engone is still running today, you won't have any troubles with it outside of the possible bore wash.

In all likelihood, the failed engine had a different problem, quite possibly cam tensioner failure.

You can download the factory service manual from one of the Sticky threads:
https://www.jaguarforums.com/forum/x...archive-66011/

 

if you got the money and time and can even do the work yourself GO THIS ROUTE.....

Jaguar Specialties

 

So i can transfer complete 4,2 engine and it will fit on engine mounts. All i need is to use original wire loom, ecu and all electric from 4.0 that is already inside.

There is no need for engine disassembly and transfering internals to 4.0?

Is there difference between 99' XK transmission to 02' S-Type transmission?

 

I can do work myself, money i could find and time is little difficult to find but i'll try.

I never worked on English cars but i think i will manage.

Can you tell me about prices, is this ok :

1999 XK8 - €4000
2002 S-type (crashed but engine bay intact) - €2500

 

If you go to the XJ8 X308 forum, you will find an extensive thread on doing the 4.2 swap.

 

why go through all the trouble of the swap to a 4.2 when the LSx GM motor conversion is as easy, maybe easier and you get a better driveline with parts/upgrades much more avail.

 

Something I remember about the Lincoln LS 3.9L being the same base engine as the 4.0. Of course the wires and several ancillaries will be different. Will someone please correct me if this isn't true but I also seem to recall the 5.0 supercharged Mustang engine being a fit. Maybe this was in a dream I had, LOL. I know I used the upper cam chain tensioners from the 2004(?) 3.9 FOMOCO on my 01' 4.0 Jag XKR because those were actually the upgraded 3rd gen metal tensioners. I believe this complete engine assembly is worth checking into because the Ford replacements are usually a lot cheaper new or used.
Quick note on those tensioners. They use a weaker internal spring along with oil pressure to tighten the upper chains. Upon first crank in the mornings, you might hear what sounds like valve clatter for about 1.001 second, then quiet normal running. Hardly audible inside the car, but this is a normal chain noise before the oil pressure can pump up the tensioner piston to the minimum tension as to save the Teflon sliding shoe from premature wear as so many previous generations have displayed.
I know you haven't torn down your old engine, but it's well known some engines have been destroyed by sloppy cam chains due to broken tensioners allowing the cams to jump timing and the result is 8 engine pistons smacking almost all 32 valves. Ugg, what a mess.

 

Probably because he is in Montenegro and, unlike the states, I'm guessing LSx engines don't grow on trees there.

 

I have no idea where that is.

 

The Ford 3.9 was a cost reduced copy of the Jag engine but like you say, there are a number of parts that interchange, including the tensioners.

You must have dreamed the XK8 had a bigger engine bay! The Ford modular series are way too wide to fit in an XK. The Jag engine is a pretty compact thing.

 

Ok ok, i found interesting posts there - thanks man!

 

Just like K.Westra replyed, region where i'm from there are no american V8 engines sitting around and expecialy no american aftermarket parts and stuff.


When we want to restore a car here in central-eastern Europe/Balkans the most inexpesive thing is to fix as much as you can from original and buy just inevitable things. In America you can go to "newspaper stand" and buy auto part for 100 year old car, and normaly when you CAN buy it you buy everything new, no need for restoration.

And of course i will try to salvage 4.0l if i can first, buy pistons, valves or whatever, but if that will be too expensive i'll swap the engine.

 

I'll to this right now, i was busy before with work

Thank for all info you guys giving me.

 

can someone tell me are these prices high or low considering that you want to buy in your own county :

1999 XK8 (engine blown, rest of car perfect) - €4000
2002 S-type (crashed but engine bay intact) - €2500

 

Hmmm... with the Euro only commanding 1.2 US dollars right now the XK8 would be $4800 here in the States. If the car itself had extremely low mileage that might be OK but not a great price. My intuition says the price is too high as the cost of another engine and all the associated labor has to be included.

Can't help you the S-type.

If you can, check the US version of eBay for prices. You can easily see what the asking prices are and more importantly, you can see recent sales to get a feel for true value.

 

That's probably a pretty rare car in Montenegro. What are import duties? That would have to be considered in placing a value on the car. I wouldn't be surprised if it turned out to be a reasonable price if you are able to do the swap yourself.

 

Its way down yonder over seas close to Albanieya.