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Jaguar XK-Series Chain Tensioner Replacement

26 messages,  Last post on Sep 19, 2009 at 9:43 AM

You are in the Jaguar XK-Series Forum. Your Host is claires

What is this discussion about? Jaguar XK-Series, Engine, Coupe, Convertible


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#1 of 26
Jaguar XK-Series: Chain Tensioner Replacement by Mr_Shiftright HOST
Nov 05, 2006 (11:33 am)
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This topic is for discussion of chain tensioner problems on some of the older XK models, and how you deal with them.
#2 of 26
cars by xkss
Dec 18, 2005 (7:23 pm)
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1997-1999 XK8s can suffer from timing chain tensioner problems. A 2000 model would be better while 2003-2006 are the best. 2003 XKs had over 900 changes.
#3 of 26
Re: cars [xkss] by brucelocke
Jan 21, 2006 (12:16 pm)
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Replying to: xkss (Dec 18, 2005 7:23 pm)

Hi,
I just spent $4200 to replace the tensioners, chains, etc on my 1999 XK8. Neither dealership nor Jag will do anything to help. I know there are two service bulletins on this problem (303-30 and 303-68). I'm new to the Edmunds forum and I couldn't figure out how to read your posting. Do you have any additional info on the problem or how to resolve it with Jag?
Thanks, Bruce
#5 of 26
Early XK8 chain tensioners by charlie193
Mar 07, 2006 (3:51 pm)
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After reading of Bruce's problems with chain tensioners for his 1999 XK8, I queried the local dealer and learned the following:
 
It's not a matter of "If", just a matter of "When" for failure of tensioner parts and expensive damage. However, if parts are replaced before failure, it's not too bad, less than $1000, parts and labor. Furthermore, there are some special alignment tools needed, such that an owner should not do the work. Five tech hours and abt $350 parts. I will have them do that.
#6 of 26
Re: Early XK8 chain tensioners [charlie193] by boodada
Mar 07, 2006 (4:41 pm)
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Replying to: charlie193 (Mar 07, 2006 3:51 pm)

Charlie- Is this for the secondary (upper) tensioners only? Where did you get the quote?
Thanks, Bob
#7 of 26
Re: Early XK8 chain tensioners [boodada] by gregad
Mar 17, 2006 (1:23 pm)
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Replying to: boodada (Mar 07, 2006 4:41 pm)

My 97 xk8 is in today for upper tensioners as engine was knocking. My shop warned me a year ago that it would come sooner or later. They suggested new plugs and fresh oil too for a total of $1200. It has about 48,000 miles.Gotta do what ya gotta do. Better than a new engine. So has anyone gotten money back from Jag??
#8 of 26
jaguar xjr v8 lost compression by beaney
Feb 11, 2007 (2:08 pm)
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help jag loss compression now won start did not over heat and is still turning over is it time tensioners how do i time the engine up or check it hasn't jumped any teeth
#9 of 26
is this timing chain tensioner issue for real? by rawdad
Feb 27, 2007 (3:17 pm)
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I have a 98 XK8 with 54k miles. Bought it in Sep 06 (in storage for the winter right now). It runs EXCELLENT! Had it to the Jag dealer to have it checked out - everything was ok. I asked the dealer about the tensioners and he said the problem was over hyped on the internet - he had never seen a problem with that engine for that reason. He said he hears that it happens - but as long as you maintain the car with frequent oil changes - you shouldn't have a problem. Hmmm.
I also read a comment in another forum from a Jag mechanic in CA that has seen literally hundreds of Jags with the 4.0 engine from 97 to 99 model years - and never, ever has he seen one where the tensioners failed.
Is this a real problem or is it overhyped? I am getting contrary advice. Any input?
#10 of 26
XK8 Convert by dmoniz
Mar 14, 2007 (9:32 am)
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I'm looking at buying an '01 with 70,000 miles listed for $21k. Is this a good price? What should I look for in this car for possible trouble spots? After reading the last post, I'm not sure if the chain tensioners are an issue or not. Any advice offered would be appreciated. Thank you.

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