slight tappety/clicking noise on start up
Discussion
I don't want to worry you, but could be the start of the 'death rattlle', sound of problems with timing chain tensioners.
For peace of mind I'd get it straight to a garage.
I got over 1000 miles with the 'death rattle' on mine (cold start, then wears off) without realizing that the tensioners were shot.
If the tensioners let go its new top ends.
I hope I'm wrong....
For peace of mind I'd get it straight to a garage.
I got over 1000 miles with the 'death rattle' on mine (cold start, then wears off) without realizing that the tensioners were shot.
If the tensioners let go its new top ends.
I hope I'm wrong....
As you have probably found from here and elsewhere, its a fundamental design fault. Jaguar are on their 3rd version now.
They can go at any time, usually between 60-120K miles.
Have a fight with the warranty, and supplier, problem is its not down as a service item, even though Jaguar are well aware its a fault.
Someone on here had their's let go on an XJR; new engine required!
Its a damned shame, because they're great cars....
They can go at any time, usually between 60-120K miles.
Have a fight with the warranty, and supplier, problem is its not down as a service item, even though Jaguar are well aware its a fault.
Someone on here had their's let go on an XJR; new engine required!
Its a damned shame, because they're great cars....
Firstly get it checked as quickly as possible. A snapped chain is fatal for your engine. However the "good" news is that there are lots of alternative causes of noises from the XKR. Just take a look at all those belts and then you have the supercharger. An expert should be able to give you a clear answer if it is death rattle. The bad news is that if yours has never had the tensioners done then at 7 years old and probably over 60K miles it is overdue. Over on the XKEC.co.uk we have a member who had no noise, very smooth engine etc. but thanks to warnings he decided to invest in a change. His primary tensioners had cracks but his secondaries were in pieces !! He had a liucky escape. Primary and secondary tensioners should be done, cost around £1300
cool, thanks for your help guys.
I have to wait until the car is back from bodyshop after a minor dink being fixed. Then I will have to find a dealer to take a look.
I had a good look/listen over weekend, basically..
when you start the car there is no noise for about 15-30 seconds then there is a sort of slight clicking noise that kicks in & increases in regularity with a rise in rpm. it seems to be 3 or 4 clicks followed by a pause & then repeating. It sounds like it is coming from the top end of the engine/heads on the passenger side and quite for back near the bulkhead, does that help ?
I have to wait until the car is back from bodyshop after a minor dink being fixed. Then I will have to find a dealer to take a look.
I had a good look/listen over weekend, basically..
when you start the car there is no noise for about 15-30 seconds then there is a sort of slight clicking noise that kicks in & increases in regularity with a rise in rpm. it seems to be 3 or 4 clicks followed by a pause & then repeating. It sounds like it is coming from the top end of the engine/heads on the passenger side and quite for back near the bulkhead, does that help ?
job38 said:
Someone on here had their's let go on an XJR; new engine required!
'Twas me. Don't mess around trying to decide what to do. If you have a '99 car, the tensioners WILL fail, it is just a question of when, and whether you have the foresight to replace them beforehand. You have a whole thread here of people telling you to get them changed. Don't ignore us.
For the sake of £750 to £1000, get them changed - it will save you thousands.
groomi said:
job38 said:
Someone on here had their's let go on an XJR; new engine required!
'Twas me. Don't mess around trying to decide what to do. If you have a '99 car, the tensioners WILL fail, it is just a question of when, and whether you have the foresight to replace them beforehand. You have a whole thread here of people telling you to get them changed. Don't ignore us.
For the sake of £750 to £1000, get them changed - it will save you thousands.
I am, I am! Just checking thats all.
P700DEE said:
... Over on the XKEC.co.uk we have a member who had no noise, very smooth engine etc. but thanks to warnings he decided to invest in a change. His primary tensioners had cracks but his secondaries were in pieces !! He had a liucky escape. Primary and secondary tensioners should be done, cost around £1300
Yep Folks, that was me
Decided to have the primary and secondary tensioners and all chains replaced as preventative maintanence on my nearly ten year old XK8 with 83k mls, smooth running, low blow-by reading of 10. No noises, just needed to do the investment.
Phone call from EAPJ at Derby went along the lines of "you were very lucky to get here! They could have gone at any moment"
Here are a couple of snaps of the worn parts in situ. Note, all the nylon slipper is worn away and it is running metal to metal - yet no 'death rattle' . Interestingly, EAPJ said that had I had the second generation tensioner with the extra spring that may have forced the piston into the chain harder!?
On the primarys, they had splits at all the mounting points at the weak part of the moulding (just about visible)
For anyone out there with this age/type of car..... get them all replaced to the latest metal body units now!
Rgds
Robocop
Edited to add for interest... here are the latest type in place.
Edited by robocop on Tuesday 15th August 21:11
Edited by robocop on Tuesday 15th August 22:06
According to Jaguar Enthusiast ( Vol 22 August 2006 page 70 ) a certain EWS Lister in the "Letter of the Month" states that he is preparing a report for the HSE and possibly the OFT regarding this very issue.
The BBC programme Watchdog have also taken an interest and may follow up.
This could eventually lead to a "class action" being taken against Jaguar (of particular interest to you unfortunates who have totalled your AJ8's). For those in the high risk category ie pre 2001MY with over 60000 on the clock it would involve a national/international recall which no doubt would be expensive to Jaguar, which must be why it has never been done up to now.
The BBC programme Watchdog have also taken an interest and may follow up.
This could eventually lead to a "class action" being taken against Jaguar (of particular interest to you unfortunates who have totalled your AJ8's). For those in the high risk category ie pre 2001MY with over 60000 on the clock it would involve a national/international recall which no doubt would be expensive to Jaguar, which must be why it has never been done up to now.
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