ok as some of you know i bought a xjr recently a 99 its my first jag ever
now what is up with nikasil is it something i should be worried about??
my xjr has 106k miles
just replaced the spark plugs,oil,air filter
going to do the timing chains soon now if my timing tensioners are metal then i have the newer ones right guys if they are plastic i have to change them???

thanks guys

 

If your Nikasil car is running well at that mileage it has probably escaped the gas/sulfur problem. It is still susceptible to overheating and short trip issues that Nikasil is sensitive to.

Read more than you want to know about the subject here: https://www.jaguarforums.com/forum/s...ad.php?t=29800

There is also links at that location to the tensioner problem. Yes, metal is good, plastic is bad.

Welcome to the forum and to Jaguars!