have been working on my 99 xk8 convertible "project car" off and on for about a year. Bought a kit in order to replace tensioners, guides, chains, sprockets, etc. (It has 168,000 miles on it). While removing the old rails, one of the bolts broke. I ended up buying a "time-sert" kit to drill out the old bolt, re-drill the hole and insert the double threaded insert. When completed, the insert looked flush with the block. However, when as I was tightening the bolt to torque specifications, the bottom of the rail began to move toward the block, leaving a gap between the chain and rail. (see picture).

Suggestions have been.....1. use a wedge washer to make up the difference. 2. replace the head. 3. Re-drill hole with the next size bit and re-install a slightly larger "time sert". Any advice/ideas would be appreciated.

 

As I said before, a wedge washer, you can even grind the washer to the as near perfect angle/thickness you require, torque it all up with a little thread lock on the stud for peace of mind and it should be fine .
Simple fast adjustable cheap, what's not to like?
Only downside, its not as the engine designers intended and also, it would have to be thin so as not to move the chain guide out too much at the fixing location whilst correcting the angle.

 

you’re using the wrong chain guides

put the right ones on then reassess the situation

 

^^
Unfortunately, many of the kits come with the wrong guides:- the ones you have fitted are for the later Morse primary chains. See this (long) thread from dan02xk8:

https://www.jaguarforums.com/forum/x...3/#post1513371


This post of BobRoy's contains the part #s for the correct ones:
https://www.jaguarforums.com/forum/x...6/#post2135756