Reciently my h22a's auto tensioner went out. Which caused it to make a loud noise when I let off the gas anything higher than 3.5k and it will stop at around 2k. I got the auto tensioner replaced with a manual tensioner and the noise was completely gone till I drove it on the freeway. The noise is much more quieter but it is still there.
I adjusted the tension on the manual tensioner by:

1) removing the valve cover
2) setting the engine at TDC
3) loosening and tightining the adjuster nut
4) turning the crankshaft 3 teeth counter-clockwise
5) loosening and tightining the adjuster nut.

After doing this I still notice the sound.

I've already adjusted it 4 times and during some of those times, it will go away for a few minutes and come right back. Is it that the manual tensioner doesent hold it's tension?

PLEASE, help a brother out.