all of you are about 90% right.
Yes you remove the tensioner, 'pin it' and replace it, meanwhile you have the 'screw' holding down the tensioner pully.
Align timing marks.
Now is where a speciality tool comes in. While putting so many inch/lbs of torque of tension on the belt, tighten the tensioner pully. This is the only correct way to apply proper tension to the timing belt. Sure other ways are possible, and probably work, but going by 'the book' is the best bet. Now make sure everything is aligned again. Remove 'screw' then crank over motor until all the marks align back up again. Let it sit for 15 minutes, crank over again until they align and then check the 'tensioner gap'
I'd spit off the specs, but its 4am and I just got back from duluth, so go look them up
!
atleast, thats how I do t-belts.
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