5.0 Timing Chain- New Information. Attn Techs

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Dec 1, 2022 | 08:18 PM

#101

JagRag

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Joined: Sep 2014

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From: Earth

Quote:

Originally Posted by tarokyama

Does oil viscosity affect chain noise on cold start?

wondering if I should switch to 0W-20 from 5W-20 to reduce cold start chain noise.
I have done a oil flush recently, no changes from that.

Dude you live in Hawaii not in Minnesota.

Dec 1, 2022 | 08:56 PM

#102

trkyam

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Joined: Nov 2016

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From: Hawaii

Valid point Lol

Dec 6, 2022 | 08:26 PM

#103

viper1996

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Joined: Nov 2015

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From: CT

Quote:

Originally Posted by Lothar52

The timing chain was changed to a different brand sometime between the 2012 model year in the US and the 2013 model year in the US. Apperently the 5.0 engine does a great job at eating the chain and causing problems. It was best they do so after having so many awful noises to have my chain, chain guides/tensioners, and all 4 actuators replaced at the same time after the previous attempt. Thats alot of changing to moving/noisy parts and it is no wonder now with all that changed out that my Jag sounds BRAND NEW up front. I also had the supercharger problem with it eating itself in the last year that was completely replaced as well..... engine dropped 3 times, taken apart 4... hopefully I can get her to 100,000 miles from 30,000 miles clean and dandy

Loth

Yes that is what I heard also...some say not true...

Dec 7, 2022 | 07:49 AM

#104

kansanbrit

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Joined: Dec 2013

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From: Kansas

Quote:

Originally Posted by viper1996

Yes that is what I heard also...some say not true...

There never has been a problem with the actual chains. Most people pay a lot of money to have parts changed that don't need changing.

Last edited by kansanbrit; Dec 7, 2022 at 07:51 AM.

Dec 7, 2022 | 10:27 AM

#105

viper1996

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Joined: Nov 2015

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From: CT

Quote:

Originally Posted by kansanbrit

There never has been a problem with the actual chains. Most people pay a lot of money to have parts changed that don't need changing.

The point being that the problem was corrected in around 2013 Tensioners guides whatever

Dec 7, 2022 | 10:47 AM

#106

kansanbrit

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Joined: Dec 2013

Posts: 978

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From: Kansas

Quote:

Originally Posted by viper1996

The point being that the problem was corrected in around 2013 Tensioners guides whatever

Not that simple, two different chain types, very earliest design was the best of all in my opinion, with a plastic insert in the guides and much higher standard of components generally. This my 2010.

Last edited by kansanbrit; Dec 7, 2022 at 10:51 AM.

Dec 7, 2022 | 12:35 PM

#107

JagRag

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From: Earth

Quote:

Originally Posted by kansanbrit

Not that simple, two different chain types, very earliest design was the best of all in my opinion, with a plastic insert in the guides and much higher standard of components generally. This my 2010.

So the early 2010's (all 2010's?) and possibly the 2011's have the best design and components then??? Is this correct?

Last edited by JagRag; Dec 7, 2022 at 12:39 PM.

Dec 7, 2022 | 01:37 PM

#108

kansanbrit

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Joined: Dec 2013

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From: Kansas

Quote:

Originally Posted by JagRag

So the early 2010's (all 2010's?) and possibly the 2011's have the best design and components then??? Is this correct?

Don't know, just know mine (2010) has what I believe to be the best. 6.35mm pitch. Of course it's possible that it was changed before I bought the car but I doubt it and I have never seen these components on any of the other 5.0 engines I have worked on.
A lot of info on this on the XFR X250 forum.

Last edited by kansanbrit; Dec 7, 2022 at 01:46 PM.

Dec 9, 2022 | 05:27 PM

#109

trkyam

Senior Member

Joined: Nov 2016

Posts: 686

Likes: 227

From: Hawaii

my 2010 has same chains/guides as well, wider more robust, better engineered.

Feb 16, 2023 | 04:00 PM

#110

kyshaew

Junior Member

Joined: Feb 2023

Posts: 1

Likes: 0

From: GARLAND

Timing chain replacement

My 2015 XJ been at the Land Rover Jaguar Dallas dealership for over 2 weeks now. I took it there for diagnostic and was told the timing chain is loose and I should replace the entire engine.... is there and reputable shops in DFW area that can repair my car.

Feb 16, 2023 | 05:24 PM

#111

trkyam

Senior Member

Joined: Nov 2016

Posts: 686

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From: Hawaii

Quote:

Originally Posted by kyshaew

how many miles on it? whats the maintenance history?

I would verify this by carefully inspecting the chain with the engine running through the oil filler cap, (carefully)
also with the engine off using a screw driver to poke at the chain and look for play.

Feb 17, 2023 | 03:23 AM

#112

RichardS

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Joined: Mar 2015

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From: Evesham, Worcs, UK

Quote:

Originally Posted by kyshaew

Apart from any noise from the timing chain, was the engine running reasonably OK? If it was then it is highly unlikely that the pistons/valves are damaged and all the engine needs is a new chain and tensioners which is not a particularly difficult job.
If the engine was running badly and there had been any banging or knocking noises, then get the cylinders compression tested and/or inspected with a borescope. Once again, a relatively simple job and essential before taking any decision about a new engine being required.

Richard