I dont think my way of looking for slack is very technical and its not advisable. Like you I was really looking for any clue when I had by problem.
Look up the legendary chap that did the 5.0 engine rebuild, I think he says that there is suppose to be slack on one side of the chain.
Are you getting any symptoms, such as chatter?

 

Yeah, oddly enough I don't think I do. I have the same "ticking over" sound that I had on my V6 F type but I'm going crazy second guessing myself. I guess DI is kind of noisy but in general I don't really have experience knowing what chain slap sounds like. I don't think this is it.

 

@Queen and Country

Experienced the catastrophic engine failure in my 2014 XKR at 46K miles. There is a lawsuit on the 2012-2014 engines regarding the timing chains you can read here https://www.kgglaw.com/practice-area...-class-action/

I doubt the lawsuit is going anywhere and I have to admit, my jag has the stage 1 ECU upgrade, smaller pulley upgrade, and Larini exhaust system. I was also running a 15% E85 / 85% 91 octane fuel mixture. Now I am in for an expensive remann of the motor but they upgrade the parts that are causing problems e.g. polish/sleeve the piston chambers, SVR pistons, 8mm tensioners vs 6mm and alloy rails.

For anyone doing ECU and pulley mods, you basically need to upgrade the internals to support the load or eventually, it will result in failure. Any high-performance motor will degrade over time, especially when you hammer it! Lessoned learned...



--------------
2014 XKR

 

@XKRTRAKR
Been insanely busy in a changing world, many pending replies but your predicament requires an immediate response.
A bulb that burns twice as bright, lasts half as long, and you have burnt ever so bright, revel in it (and I sense you are doing that)

The lawsuit would not apply to you as the gradual defect the suit claims is just that, gradual and not instantly catastrophic. The timing chain makes a lot of noise for a long time and throws a code.
Yes the aim of a tune is to favor performance above all else, a bad tuner is oft oblivious that unburnt fuel is used for cooling the chamber- he thinks someone more qualified than him at Jaguar made a mistake. Look up a guy named Cambo on this forum, they understand that delicate balance well and have got performance without compromise from their tune.

You probably know you can get a used engine from a Ftype/ Range Rover/ Land Rover. Or rebuild, but get rid of that tune. Get one from Moscowleaper / Cambo, the guy is a genius, as I doubt you can go back to stock engine.

 

Well said and thank you for the reply. My jag burnt very brightly! Had a 2019 Aston Martin owner wondering why he couldn't shake me on the highway before things shut down.

I did find a highly qualified jag/rover engine restorer after a lot of research for a good price e.g. 1/3 the price the dealership was quoting. Visited his shop to verify before starting the process. He had many rebuilds ready to go and a lof of salvaged cars in the back. Knew the engines inside and out and where/why they fail.

He is going to redo my block so I keep the same VIN instead of swapping out and I get to keep the mods already in place. Includes 12 month 12K mile warranty too. In the end, the car will be better than it was before and will easily support the pounding.

 

Sorry to hear that. I highly recommend looking into why you suffered engine failure so you can avoid repeat of this with the new engine. Was it insufficient cooling? Was it oil starvation? Was it detonation? Did timing chain jump? Did you burn valves?

Tuned engines can be made reliable, the engine doesn't have to be disposable.

 

Will definitely get to the bottom of it and let you know. I've had the tuning for over a year and it ran like a charm until it finally failed. I've read some other comments that mention changing timing internals around 50K miles...

 

It was those red mirrors that caused the problem...

 

I have a pulley upgrade, exhaust mods but crucially no tune, it was like that when I bought it almost 2yrs ago

Indy advised me that there was evidence of several tunes on my.car but that it was using the stock one (don't know how true this is?)

Sadly I don't drive mine hard (those days are long in my past) so hopefully I'll not have a chain issue...but this thread has added weight to my decision not to drop a tune on it anytime soon

 

I am curious why the Class Action lawsuit only includes the 2012 to 2014 engines. Did JLR make changes to the design and/or internals from the earlier engines?

 

I have a pulley upgrade, exhaust mods and a tune on my '10 XKR and have done 76 quarter mile runs in it with no issues so far...

 

Mine at the Dealership right now for this problem and I was told by a lot of mechanics that it's a timing chain failure.I got mine at a jaguar dealership where all the mechanics that work there don't know how to fix my engine to replace the belt in it and telling me that I should install an entire new engine and that sounds ridiculous and expensive and this Jaguar dealership don't have that many good reviews either.So my plan of action is to carry it to another dealership with lots of great reviews and for a second opinion and have them work on it and hope they don't recommend such a drastic resort.

 

Barry, the dealerships are useless. Anything they recommend or do will cost a fortune. I found a shop that specializes in rover/jag engine remanufacturing which the dealerships actually use to outsource the work - and charge customers double or triple.

My issue turned out to be a busted crankshaft and burned out bearings (not the timing chain). Also 2 injectors and 1 catalytic converter went bad. But I went ahead with all the upgrades since the engine was out e.g. SVR pistons, polish/re-lined the head, 8mm timing tensioner and alloy guide rail.

I would recommend finding someone that specializes rather than the dealerships. I was quoted $30K+ and got upgraded for $10.5K, not including the cat. The work includes a 12K mile 12M warranty so long as you use 5w30 oil and change every 5K miles too.

 

What you describe sounds like the result of pre-ignition as a result of leaning out the mixture and/or heat saturation of intercooler. I strongly suggest you take a hard look at your tune and see if they overrode thermal safety map.

Moving forward, consider upgrading both intercooler pump with a high flow unit and intercooler with a bigger part. I have seen these offered aftermarket, so you won't have to go with the very expensive custom-made parts.

Last but not least, resist the temptation to hammer it for the next 750 miles, as you want parts to correctly break in.

 

Yup. Thanks. I am taking it to a racing shop soon to get everything reviewed.

 

You will save A LOT of money by going to independent Jaguar shop. Not to give you false hope, but it is not 100% certain engine death if your chain jumps as it all depends where all moving parts were when that happened and how quickly it stalled. While exceedingly rare, I heard about cases where chain would jump a tooth or two, engine stalls and no damage occurred. I also heard of a few cases where bent valve was the only damage, which is possible to repair by only removing one head.

Last but not least, it might not even be a chain. If you don't investigate, assume engine is toast and replace it (at dealership prices), you might never know what happened.

 

That's the thing,I been trying to find a shop for forever to work on my jag and just can't seem to find 1 at all down here in North Carolina.They will work on every other make and model foreign car BMW,Mercedes,and Porche but no shop says their mechanics are skilled enough to work on Jaguars which is weird because I heard Jaguars are using Ford mustang 5.0 engines might as well say and that's a common engine that should be easy for any shop to work on.

 

Barry, while it's a dealership North Atlanta JLR has a tech named Matt that works with Service Advisor Pete Alvares. He is one of the highest rated JLR Techs in the country and does engines all day. He has worked on my 2013 SuperSport since delivery almost 8 years ago and 113k mile. He has done my tensioners and guides. They are not cheap but they don't get many yoyos. As an example of my faith in them, when I had a water pump fail when I was in Charlotte a couple of years ago I had the XJ flat bedded to the dealership. Call them ask for Pete tell him Robert Hirsch said to call, 678-497-4153

 

Not so. The Jaguar engines were designed entirely by Jaguar, not by Ford. They are not the same engines. The confusion stems from the fact that the Jaguar engines were manufactured under license from Jaguar/Land Rover in the Ford Bridgend plant, in a separate facility. This is yet another myth about Jaguars...

 

Thanks for enlightened me on it.But Idk why Jaguar just won't do a recall to fix everybodys xk or range rover with this very defective part in it that can hurt the engine and it's only right if they do so.They didn't have to change engine parts from the 2010-2011 models being a very low maintenance part in those years but soon as Jaguar hear a cheaper way of doing things, seem like they will always veer to the cheaper route on car parts instead of making their vehicles with the top tier quality people think they're paying for and now they would rather you pay for their very costly mistake.Seems like car companys only decide to do recalls when it's life threatening and you as the consumer is just pure SOL when your car reaches over the 50,000 mile warranty and this is the PERFECT time when it happens...Sounds like a setup if your jaguar or landrover from the 2012-2014 is in the shop for the same exact thing everytime it gets close or a little bit pass 60,000 miles.Something SERIOUSLY needs to be done about this to protect consumers and to keep the company safe from lawsuits