Photo of the plastic cam tensioners
#2
#3
#4
#6
#7
Trending Topics
#8
This will be interesting. I bet you will find them to have no cracks (which is not to say they shouldn't have been changed out). That really is a remarkably clean engine with 60k on the clock. My engine looked not quite so clean and the tensioners were like new at ~ 55k.
I can't prove this, but believe there is a correlation between heat and the tensioners going south.
I can't prove this, but believe there is a correlation between heat and the tensioners going south.
#9
This will be interesting. I bet you will find them to have no cracks (which is not to say they shouldn't have been changed out). That really is a remarkably clean engine with 60k on the clock. My engine looked not quite so clean and the tensioners were like new at ~ 55k.
I can't prove this, but believe there is a correlation between heat and the tensioners going south.
I can't prove this, but believe there is a correlation between heat and the tensioners going south.
On my Jaguars and BMW I change oil only once every 12K miles with one or two interim filter changes. Attachd is a pic of the engine in my XK8. I have a pic of an 01 XKr with same mielage as mine (I was unable to download it for some reason). The valve train is in terrible shape, and the owner changed oil and filter over twice as often as I did, but he had engine overheat problems on several occasions.
Last edited by steve11; 12-02-2010 at 08:57 AM.
The following users liked this post:
Dennis07 (12-02-2010)
#10
#12
#13
#14
-Make sure you use torque wrenches of the correct size (ie; can read around 10 NM accurately (as well as 100-150 NM acurately if you use the factory method of removing the cam sprocket)).
-If you use the factory method and remove your cam sprocket you MUST use the cam shaft lock tool to maintain timing alignment
-You will also need a universal joint for your socket set.
-Replace your valve cover/spark plug gasket set while you are in there. If you have a '97 those seals may be 13 years old.
-Clean off your valve covers before removing them, so as not to have a lot of dirt fall in the engine.
-Most importantly, if you are not completely sure about something ask for help here !
-If you use the factory method and remove your cam sprocket you MUST use the cam shaft lock tool to maintain timing alignment
-You will also need a universal joint for your socket set.
-Replace your valve cover/spark plug gasket set while you are in there. If you have a '97 those seals may be 13 years old.
-Clean off your valve covers before removing them, so as not to have a lot of dirt fall in the engine.
-Most importantly, if you are not completely sure about something ask for help here !
Last edited by WhiteXKR; 12-02-2010 at 12:09 PM.
#15
If you can take off the cam cover you can do it.
Dan
#16
https://www.jaguarforums.com/forum/s...ad.php?t=37415
including sources for parts, etc.
#17
Since this work is new to you, I'm going to stress one really important bit that might not be obvious. When loosening or tightening the camshafts, it's vital to go slow ... taking a little load at a time off of each bearing cap. The cams are very hard metal which is a good thing but this also makes them brittle. It's possible to snap a cam in half if you don't go a little at a time.
This would probably ruin your whole day.
Good luck; keep us posted,
Last edited by Dennis07; 12-02-2010 at 01:34 PM.
#18
A little nervousness is good, I think. Tends to keep our minds focused, right?
Since this work is new to you, I'm going to stress one really important bit that might not be obvious. When loosening or tightening the camshafts, it's vital to go slow ... taking a little load at a time off of each bearing cap. The cams are very hard metal which is a good thing but this also makes them brittle. It's possible to snap a cam in half if you don't go a little at a time.
This would probably ruin your whole day.
Good luck; keep us posted,
Since this work is new to you, I'm going to stress one really important bit that might not be obvious. When loosening or tightening the camshafts, it's vital to go slow ... taking a little load at a time off of each bearing cap. The cams are very hard metal which is a good thing but this also makes them brittle. It's possible to snap a cam in half if you don't go a little at a time.
This would probably ruin your whole day.
Good luck; keep us posted,
Last edited by reko19; 12-02-2010 at 02:29 PM.
#19
Nothing wrong having a good advisor with his beer goggles on. Wish I could do it...but it'd have to be the right kinda beer....like a good Belgian Wheat...or maybe a Negra Modelo...or....maybe...
#20