As a precaution I’ve just had my 98 XK8 with 83k on the clock checked to see if the tensioners have been updated and they haven’t, this was done by my local garage who have looked after my cars for years, the secondary (upper) timing chain tensioners, chains look in good condition and the car has been running great with no knocking etc, lm going to have these upgraded to the new metal tensioners as a safe-guard. I have spoken to my local Jag dealership for a second option and they have advised me (at huge cost) to have the secondary (upper) timing chain tensioners, lower tensioners and chain guides replaced! Does anybody think this is necessary or can someone advise who is or has been in the same situation?
Thanks