Mechanical chain tensioner adjustment, how tight?

[mike911]

I dropped the engine with the help of a friend last week, wanted to inspect & address any potential issues and do a little clean-up. One area of concern were the chain tensioners, I had no idea what condition they might be in so it made sense to have a look.

Once we pulled the covers it became obvious that someone had installed mechanical tensioners. The left side appears to have good tension, not too tight and not too loose. The right side appears to have a bit of slack.

Is there a spec for the tension, how tight is too tight or not tight enough?

Any help is as always, appreciated.
Thanks,
Mike

left side


right side