I saw a video about changing the upper tensioner in the video the guy rotated the crankshaft clockwise until both flat camshaft lube as you can see in the pic .


he said at this position non of the both camshaft valve springs are pushed down . then he removed exhaust camshaft caps changed tensioner then car works fine.

now my question is can I remove the exhaust camshaft caps if it's in different position? or it must be in this position only?

I opened the exhaust camshaft caps while the lubes were facing left fender or close to it but non of the exhaust valve springs were pressed. does this make any difference? or not?

2002 xj8.

 

If the springs were not being depressed it's okay. It's possible to remove the cam if some springs are depressed, but then the cap screws should be backed off a little at a time to avoid breaking the cam.

 

When I did mine I had both inlet and exhaust flats level so there was no pressure on the cams
then replaced the tensioner just had to lift exhaust cam a small amount and this was using the cable ties and paint bolt method ( I watched a youtube video )
it's not worth damaging a cam, and I didn't want bits jumping off everywhere like bolts and caps.
I wish you good luck.

 

I guess you meant lobes. So where are you on getting this sorted out? May I suggest you keep to one thread instead of introducing new ones for every question. Makes it easier for members to follow . . . just a suggestion.

As these cars begin to hit 20 years and most more than 100000 miles, we are seeing new issues that are age and mileage related: a chance to learn together.

 

yes camshaft lobes . I think I will stick with your suggestion I think it's better because I'm still working in the engine section . but unfortunately I did post new thread ist possible to delete it?