Tensioner question
#1
Tensioner question
I recently obtained a 2000 XK8 which, as beautiful as it is, appears it will ultimately be more expensive than the other Jags I own. I fully intend to have the third generation tensioners installed, since I didn't get records & have no idea whether the issue had been previously addressed. After that, I'll address the roof hydraulics.
My question is: should the timing chains be replaced, as well? Or is changing the tensioners sufficient? It presently has 96000 miles on the odometer. It runs smoothly, with no particular rattling, or other objectional noises.
My question is: should the timing chains be replaced, as well? Or is changing the tensioners sufficient? It presently has 96000 miles on the odometer. It runs smoothly, with no particular rattling, or other objectional noises.
#2
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sharay38 (08-16-2013)
#3
Ray
#4
Welcome to the forum. The following link will take you through the changing of the upper tensioners with pictures. My 2000 XK8 had 40K one it and they had just started to crack. At 96K you are pushing your luck if they have not already been changed. Don't and I mean don't delay in at least checking by removing the right cam cover and checking.
Have fun doing the job. And read as many other posts as you can find. But if you do it the way I did it I think you'll like it.
https://www.jaguarforums.com/forum/x...ics-how-52653/
Have fun doing the job. And read as many other posts as you can find. But if you do it the way I did it I think you'll like it.
https://www.jaguarforums.com/forum/x...ics-how-52653/
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sharay38 (08-19-2013)
#5
Welcome to the forum. The following link will take you through the changing of the upper tensioners with pictures. My 2000 XK8 had 40K one it and they had just started to crack. At 96K you are pushing your luck if they have not already been changed. Don't and I mean don't delay in at least checking by removing the right cam cover and checking.
Have fun doing the job. And read as many other posts as you can find. But if you do it the way I did it I think you'll like it.
https://www.jaguarforums.com/forum/x...ics-how-52653/
Have fun doing the job. And read as many other posts as you can find. But if you do it the way I did it I think you'll like it.
https://www.jaguarforums.com/forum/x...ics-how-52653/
I had previously found your above post, and had already been studying it.
While I didn't get maintenance records, a CarFax report indicates the valve cover gaskets had been changed in 2007, so I'm guessing the tensioners were, at least, inspected at that time.
Ray
#6
Thanx, EZ.
I had previously found your above post, and had already been studying it.
While I didn't get maintenance records, a CarFax report indicates the valve cover gaskets had been changed in 2007, so I'm guessing the tensioners were, at least, inspected at that time.
Ray
I had previously found your above post, and had already been studying it.
While I didn't get maintenance records, a CarFax report indicates the valve cover gaskets had been changed in 2007, so I'm guessing the tensioners were, at least, inspected at that time.
Ray
I think this is the best advice you will get on this subject. Last one I know of that failed in my area cost $8,500.00 to fix and that was four years ago.
Please keep me informed.
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sharay38 (08-26-2013)
#7
Thanx, EZ.
I had previously found your above post, and had already been studying it.
While I didn't get maintenance records, a CarFax report indicates the valve cover gaskets had been changed in 2007, so I'm guessing the tensioners were, at least, inspected at that time.
Ray
I had previously found your above post, and had already been studying it.
While I didn't get maintenance records, a CarFax report indicates the valve cover gaskets had been changed in 2007, so I'm guessing the tensioners were, at least, inspected at that time.
Ray
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#10
Hi Shara38, It really helps us here on the forum to hear back from members that we have given advice to. So please come back and tell us what you have decided and what you have found following any inspection or rework.
Follow up helps us all and encourages us to do more.
Follow up helps us all and encourages us to do more.
Thanx
Ray
#11
The thermostat housing is subject to aging, as is the connecting pipe. If you decide on the aluminum housing, be aware that there are some poor quality ones on the market. Mine was from Welsh Ent. and is excellent.
I know there has been lots of discussion and warnings about changing antifreeze type, but my own opinion as a chemist is that if you do a flush changing to yellow or green is fine. I'm using it in both of my cars.
I know there has been lots of discussion and warnings about changing antifreeze type, but my own opinion as a chemist is that if you do a flush changing to yellow or green is fine. I'm using it in both of my cars.
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sharay38 (08-26-2013)
#12
The thermostat housing is subject to aging, as is the connecting pipe. If you decide on the aluminum housing, be aware that there are some poor quality ones on the market. Mine was from Welsh Ent. and is excellent.
I know there has been lots of discussion and warnings about changing antifreeze type, but my own opinion as a chemist is that if you do a flush changing to yellow or green is fine. I'm using it in both of my cars.
I know there has been lots of discussion and warnings about changing antifreeze type, but my own opinion as a chemist is that if you do a flush changing to yellow or green is fine. I'm using it in both of my cars.
#13
Yes...change out the thermostat housing with a metal one now. The composite plastic will deteriorate, and though it might not go out on you anytime soon, chances are it will go out on you at the most inopportune time (I think we can all relate to that).
Mine went out 2 years ago on a 118 degree day here in Phoenix.
Mine went out 2 years ago on a 118 degree day here in Phoenix.
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sharay38 (08-27-2013)
#14
yes change tensioners all of them, thermostat housing to medal and make sure you put a new thermostat in of course. also change the water pump to the new upgraded generation that will work so good for the car. also drain that coolant out of the bottom and go get two gallons of new coolant not blended but the real coolant. Don't forget to check that oil pressure sending unit while you are changing those tensioners. drop that oil and change the filter. that car should run like a dream after all of that. Me my self I still have to change that coolant overflow bottle because I get low coolant warning but my coolant is at a good level. its the sensor that get stuck in those things. and I need to change that brake module. these are beautiful cars
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sharay38 (08-27-2013)
#15
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sharay38 (08-27-2013)
#16
Yes...change out the thermostat housing with a metal one now. The composite plastic will deteriorate, and though it might not go out on you anytime soon, chances are it will go out on you at the most inopportune time (I think we can all relate to that).
Mine went out 2 years ago on a 118 degree day here in Phoenix.
Mine went out 2 years ago on a 118 degree day here in Phoenix.
Thanx
#17
The orange coolant widely available is also known as Dexcool.
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sharay38 (08-29-2013)
#18
The only reason I was asking about which coolant is that I already have a full case of good old green Prestone & just wanted to use the supplies already at hand. On the other hand, If I flush & fill the other 3 cars in the coming year, all the Prestone would be used!
#19
yes change tensioners all of them, thermostat housing to medal and make sure you put a new thermostat in of course. also change the water pump to the new upgraded generation that will work so good for the car. also drain that coolant out of the bottom and go get two gallons of new coolant not blended but the real coolant. Don't forget to check that oil pressure sending unit while you are changing those tensioners. drop that oil and change the filter. that car should run like a dream after all of that. Me my self I still have to change that coolant overflow bottle because I get low coolant warning but my coolant is at a good level. its the sensor that get stuck in those things. and I need to change that brake module. these are beautiful cars
Last edited by Norri; 10-10-2013 at 11:10 AM. Reason: Added pic
#20
Why would yu want to put Dexcool in with all its history of problems with eating aluminum and gaskets??? There are many better choices out there now. The universal yellow is just as good without the live critters and issues with other coolants.
If you use Dexcool for the first time make sure your
block and heater core are also flushed.
If you use Dexcool for the first time make sure your
block and heater core are also flushed.
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