I put an alternator in today, and while I was at it, changed the belt.

Incidentally, while I was trying to get the belt round the back of the tensioner, I pulled on the ½ drive bar a few time and it kind of sucked the belt through with a bit of help from my other hand.

However, I suddenly realized that I did not know if I had to reset the tension for the new un-stretched belt. My searches have told me a lot, but not if I have to adjust the force. Any info please? Rob

Nope, no adjustments are needed. Unless you got a belt that was a size too big, or the tensioner is broken. Even in those cases though, you wouldn't need to adjust anything, just replace whatever was wrong. The tensioner's spring should do all the adjusting for you.

Yep, it's springloaded and it pretty much sets it's own tension.
Back in the day you had to adjust the tension on the old V belts and even some early serpentine belts.
Not so anymore, it's an install and close the hood kind of job.

Ooookay. I'll close the hood...wait until tomorrow, and take a quick peek to see what I have forgotten.

Thanks