hi in response to how I got more tension on the timing chain tensioner
1, I first took it of then I remove the circlip that holds it together at this point the tensioner arm will pop out.
2, there is a bolt on the other end of the tensioner you need to take it off, you will now able to put tension on the spring with a small spade screw driver,
while you have still got tension reasemble the tensioner arm by screwing back on,
holding the parts together with the tension arm full retracted put the circlip back on.
3, If you have done the above correctly it will have more tension power than before you disasembled it I hope this helps, it made my engine alot quieter I hope this helps let me know how you go on